I have a Comment directed to all of the people who have made rather negative comments below, including all those who suggest a DIFFERENT way of solving the particular problem that existed here. The most important thing for EVERYBODY to realize is that Paul is an Instructor at a SCHOOL. He is a TEACHER. This is not a production shop where the objective is always to get the problem fixed as fast as possible and ship it out the door. If you watch some of Paul's other videos, particularly if you watch a LOT of them, you will hear Paul point out, many times, that the problem that is diagnosed on various cars they get at the school MIGHT have been solved "faster" if different techniques were used. Paul has enough experience and "gut feeling" that he COULD solve many problems faster, on his own, in the field. Watch some of his video's where he is by himself, working out in the field. If you want to watch him do the FASTEST possible complete diagnos'es, with 100% confidence of the solution, that is where you will see it. But that IS NOT THE POINT OF THE EXPERIENCE. His primary job is teaching students at the school. Remember these are STUDENTS, most with little or no experience doing diagnostics. Paul's job is to give them the strongest possible set of skills and knowledge in the two short months he has them. New people going into the field NEED to know how to use ignition scopes, and they NEED to know all the in's and out's of scanners, and how to use all the features of the scanner. It is the PROCESS of going through the initial assessment and then determing Direction. Watching all of the experiments that were done using the Picoscope teaches a LOT about how engine timing works. It helped me "think" in terms of what is actually happening inside the engine. Remember what an "odd-ball" situation this car was. There are MANY ways to find a given problem, usually, but what typically happens in Paul's classroom and workshop is they go through as many of those process'es and methods as possible, as a learning experience. Watch the video about the Ford IAC. It will explain this whole idea better than I can. Some students might end up working in environments where some of the fairly expensive and exotic instruments like pressure Transducers are not available, but other students WILL eventually have access to some of those tools. That pressure transducer is 750 bucks, so not everybody will have one early in their career, but the ones who can afford it will have a very useful tool. I have never had any formal training in automotive work. I've worked on my own cars for 35 years. I thought I was a halfway decent mechanic UNTIL I started watching scanerdanner's video's. I've watched most of them now, many of them 2 or 3 times. I feel like I have gotten a Doctorate degree in Engine Diagnostics and Driveability, FOR FREE! I don't even have Paul's book yet. I have a very decent compliment of mechanics' tools and equipment, but I don't yet have any kind of scope, or scanner. I plan to get both when I can afford them. About three years ago I had a no-start on my 1999 Sebring. Out of embarassment, I won't say how much time I spent trying to find the problem (it was DAYS). What I will say, is that if I had an ignition scope, and the knowledge to use it, that I would have had the solution in less than an hour. Turned out to be the coil, even though the resistance of both windings was within spec. If I had the same problem now, I would be able to find it almost immediately, if I had a scope. So, the main point is, THOUSANDS, YES thousands, of people and professional techs have learned, and been helped, by the video's that Paul has created and posted. SO, maybe some of us should leave our ego's at the door, and acknowledge that he is a gifted diagnostician, and a great teacher. I have no affiliation of any kind with Paul Danner, or with his school or any equipement maker or seller. I don't work in the industry in any way. Thanks for reading.
Wow man, thanks so much! You really did a great job of explaining why I go through the methods I do. It is all about equipping my students with as many "tools" (testing methods) as possible.
It's mainly kids making those comments. THEY KNOW IT ALL. Like nobody else has ever lived. Any experienced mechanic would know better and keep their ignorant comments to themselves, The kids just show their ignorance and immaturity like children do.
douglas lee You know, he also mentioned that it had been to a couple shops and they didn't find it. They just changed parts and failed. It's typical of people to pretend like they know better. That's why I don't bring my cars to a shop... ever! All the shops where I live are terrible.
This guy is awesome. I bought this o4 ford escape very cheap due to simple engine misfiire.previous owner gave up after replacing numerous brand new ignition components, sensors, coins, including whole exhaust front to tailpipe..so I bought it,convinced i would find problem.. well after so many headaches i said , " the heck with this Nice looking P.O.S" but if not for this professional,genius,considerate, and dedicated individual who took his time , patience and effort to do this video, I got her driving like a dream...I got vehicle for a while!!!! GOD WILL BLESS YOU FRIEND!! MY KIDS AND I TRULY APPRECIATE UR GREATNESS..
I had this issue today. Replaced spark plugs, valve cover gaskets and grommets, oil change, transmission fluid change (not a flush), air filter and fuel filter change, and cleaned TB. Started my Escape and had this misfire issue, one of the coil pack wires broke, made a new connection and soldered it, and it kept misfiring. Paused, looked for a similar situation for my Escape on ScannerDanner channel, and here it was. Even though I don't have all the tools, I did switched the coil packs around and the misfire/not firing was on the same 4 and 6 cylinders. Spark plug coils were connected wrong. Switched them and a whole new Escape emerged. Thank you for all the videos and teaching you do. Very thankful you share your knowledge on RUclips. Regards from Monterrey, Mx.
Did valve covers on this same car two days ago, did not mark coil wires and scanner (did not) show misfire even tho vehicle was clearly misfiring.Would have never thought I crossed those wires because of the way they reach.Took intake back off twice looking for a unplugged wire or hose.was just about to set car on fire when I found your video LOL. WOW MAN.WOW. Professional mechanic 30yrs. Did I say WOW! Saw your video and went to my Job on Sunday I was so excited to see if this was the issue.Yup it was.WOW MAN.A lot of techs and mechanics know how to run test and use a scanner,you do something a lot different from most of us.I tip my hat to you.
Exact same here, three weeks of un-doing and re-doing, and troubleshooting, all to no avail. I watched this video, even though I didn't have the fancy diagnostic tool, and discovered I had made the same mistake! THANK YOU!!
GREAT detective work. Many years ago I got a call from a restoration shop working on a loaded 68 Mercury Cougar. Car would crank but not run. New plugs , cap, wires, points, etc. The guys were frustrated to say the least. I noticed early on that the dash was apart and the instrument cluster was out. Most Fords of that era ran the ignition thru the tach. I hooked up the factory tach double connector and told the guy to try it. The Merc started right up. Sometimes you have to go with the basics. Thanks for all your videos.
gf bought an 04 escape with a misfire... she didnt bring me with for that purchase, anyway ive been trying to figure this shit out for two years. finally replaced the exhaust manifold gasket (etc) the catalytic converter and the o2 sensor hoping that the cat was the problem... nope. it was worse. checked the plugs, the coils, misted the engine in the dark, asked everyone i know etc etc... while i was having a few beers preparing myself for a failing compression test, i saw this vid... clicked on it. read the description. went outside. reversed 4 and six, since they were both misfiring... and the problem is history.... the gasket was fucked, the cat was fucked and the 02 sensor was probably fucked, so i didnt end up wasting any money and i stumbled across the right vid at the right time. thanks for the upload ScannerDanner
lol, I still feel that way about what I know. Here is how it goes.....the more you learn in this field, the more you realize how much more you need to learn. give yourself some time my friend, I just simply have 20 years on you and am learning everyday myself. your time now in the field is where all of your education will come together. there is no substitute for a "bad call" on a diagnosis. you'll never forget it and never do it again
Awesome! The compression loss due to cylinder wash is a very important variable! Just had a 2001 Escape with the same 3.0 V6 with an unplugged coil that showed no compression whatsoever on one of 6 cylinders. Compression came back after running the engine for a few minutes. Had this video in the back of my mind while connecting the front three coils too lol
Hi Paul. You remind me of a (then) teenage neighbor of mine Steve Woods dating back to 1965 when I was only 8 years old. We could go outside any time of the day and see him under the hood of a car out on the street working away. Anyway, one of the most valuable lessons Steve taught me, where any kind of ignition or firing problems are involved, is to always check the ignition wires first to ensure they exactly conform to the firing order posted on the engine block or hood sticker. Particularly where weekend warrior or novice mechanics become involved. Steve was working on an engine one summer afternoon which was missing badly. A glossy jet black 450 V8 Pontiac Firebird which had a sparkling metallic gold "firebird" overlay across its hood. Totally sweet and a thing of beauty to be sure! We could see from the attached diagnostic equipment (dwell/tach gauges & timing lamp) the timing needed to be seriously advanced. So as you'd fully expect Steve proceeded rotating the distributor in the customary manner. But he couldn't advance it to the point needed since the distributor had reached its stop at the extreme CCW position. After a single minute of head scratching and deep thinking he came up with a very clever solution I'll never forget. It involved manually advancing the ignition wire (firing) order by +1; rather than advancing it the usual way using physical distributor rotation. Once the wiring firing order was advanced accordingly he rotated the distributor back near center position and the timing read smack dead on and that engine ran like a wet dream forever thereafter. Rather than just 2 of the ignition wires being out of proper firing order they were all offset by -1 relative to the entire sequence. That, essentially being the same underlying errant cause you identified in this case study just carried to the fullest possible extent. One of my greatest regrets in life was not spending every waking moment out front of Steve's house watching his every move. At the youthful age of just 16 he was one of the most dazzlingly talented mechanics I've ever had the privilege of getting to watch let alone stand next to shoulder to shoulder. A truly gifted mechanic in all regards. You impress me in all those same ways Paul.
Excellent tutorial. Watching your videos for a few weeks has given my career a bit of a boost. Been in "the trade" here in the UK for 30+ years, and have up to now, been relegated to engine, transmission, and suspension work. Over the past week alone, I have had 3 noteable successes, and raised eyebrows when I broke out the scope leads for our aged MODIS for the first time ever, and got to the bottom of a problem that has haunted the garage for months. So I'm feeling confident that had you used the low amp clamp on each coil lead, with a high amp clamp on the starter cable individually, instead of all 3 together (14:20) you'd have picked up on the discrepancy without the pressure transducer. If I'm right, you've tought me well. If I'm wrong. Time to retire lol... Thanks man...
What I enjoy most about your videos, is that you show the step by step ways you diagnosed the problem. Even how you changed the settings on the scope. How you hooked up the test equipment. This makes the learning process easy and allows us to duplicate the tests in the field. Thank you for all your great teaching.
I cannot even remember the last time the screen saver was turned on in the middle of watching a RUclips video. So that shows you that your video making style is very educational and entertaining. Thank you for all your hard work.
I’m an electronics technician. My simple rule.... mark/label before you remove! Take photos. Remove one at a time. This guy is by far the best instructor I have listened to!
This is barely the second time adding a comment on thousands of videos watched. But a sincere thanks for this very detailed video. You saved me a couple hundred bucks. You made a subscriber.
Man ! This was exactly what was wrong with my car ! Thank you so much ! I have done so much work to try and figure it out and this was exactly the problem 😱
Just tried it on mine and sure enough, the engine fired right up!. still a bit erratic at idle, but that could be a bad O2 sensor or dirty injectors. hell, just getting her out on the road and giving her a good hard run should clear a lot out too. Thanks for the video and to whoever linked it to me!
bobby gray yeh its a standard Duratec 30, seems to be pretty potent just driving it in the backyard, now to do a few more little things then get her out on the road :D
Just wanted to say, I watched this video when you posted it, and since then I've seen (and fixed) this exact issue multiple times. That's why I watch, keep it up!
Dear Mr Danner. I can't tell you how many times i have considered the wiring harness to be the writing on the wall with regards to where to plug in the injectors. Once again you have shown how enhanced evaluation, is vital to profitability and effectiveness. There's no shame that the other garages were unsuccessful;:this one would have thrown me for a loop also. You evaluated a lot of issues that has made this on of the most informative videos to study. Can't say it enough. Thanks you
I paid a shop to diagnose my car not starting. I knew it had fuel and spark. Turns out it didn't have enough spark. Needed a cap and rotor. I told them thanks, but I'd do the work myself. A-holes reversed my wires. Misfired like crazy, but I figured it out pretty quick. Great video!
That has taught me a huge lesson to never assume anything. Without the proper equipment and knowhow you could be looking for that problem until your hair turned grey and fell out. AWESOME diagnosis.
quality information is given away for free and people still complain. as an 02 3.0 escape owner I could face the exact same issue and am very grateful i have this free pro advice.
Paul,I have checked the wiring color on each coil,n I don't know how in the world I didn't notice that,thanks you man.You,yes You fix my costumer scape,this customer bring this truck from another shop,with the same issue,after three days of working in this truck,dreaming and almost going in a frustration mode,I prey God this morning and he put your video in my way,thank you man and God keep blessing you.
that's a great offer! I am just completely overwhelmed right now trying to get this video lecture series done, plus all the other things I do. maybe when things settle down for me a little bit, we'll talk thanks again!
The process you used is always the best way to drive home diagnosing a problem. I went to HVAC & R school many years ago and the lengthy diagnostics way back then affords me the knowledge and experience to ID problems like this a lot quicker. You are spot on and this is how you learn to be a master of your craft.
Never commented on RUclips before, but I watch a lot of car repair videos. Not only was this one spot on with what I was dealing with, but it was very well recorded. Easy to understand and follow along. 5stars would visit again!
Aaaaaamazing, a client came with the same misfire problem. he told me the engine was just replace ! replaced the melted cats ,took a look at the egr spark ......spent 2hours cheking then i came across your video .....and believe it or not the wiring harness was upside down just like you! Tank you i saved a lots of time thanx to you
An excellent video demonstrating the use of advanced test equipment coupled with the knowledge of how to interpret their data. Prior knowledge, experience and history solves many problem cases, but the remaining 2 to 5% are the jobs that kill a shop's productivity. I appreciate you taking the time to show us in "slow motion" the logic used in troubleshooting an electromechanical system, along with the tools that give you the necessary information to come to a correct solution. Great job!
Another great video, it's so easy for something to look right, like the original loom routing, and therefore be assumed right. Back to basics and proper methology won through, a very very good video, and a warning for us not to assume anything on "awkward" engine faults. Thanks again!
thanks man. fortunately this one is at my school, so it is a no charge and there was no pressure on me. I love a good "headache" car at school for that reason.....no pressure
It's amazing that no one before tried that method as a part of a checklist.... Sometimes we look deep when things are right under ur nose... I learnt a life lesson, hope everyone did
Great content. Learned a lot. As always you explain things very well, take the time to show the little details. Love these type of repairs. It's the strange problems that really test your foundation. Thanks Paul.
Mr. Danner: Thanks so much for teaching me that there is hope for PROPER, Smart, young techs around that GET the right equipment, and learn how to use it right. You have a subscriber for Life, for all the problems I just can't get. Also..... those other 2 shops are the way most dealerships operate....just to rip off the customer. I will be going through all the rest of your videos to keep current with all the latest tips and tricks. Thanks again just for being thorough & honest. (I read below in the comments that you are a teacher) ! Great! Who better to learn from.
There's a good example of how a moment of inattention by one of the first people to work on the car lead to a huge, expensive problem. Also, it's a good example of a recurring theme in diagnostics -- keep your thinking simple and go at the problem in an orderly sequence. Without the pressure transducer you could have done this by showing cyl#1 spark on one channel, and other cylinders on channel 2, looking at spark delay to be sure spark was firing in the correct delay order from #1. Great job!
I was just watching this and thought, I don't have all these tools and tests, and I'm not going to know if this is my problem... But I just went out and swapped my 4 and 6 coil plugs, and BAM! car running like a champ and no codes firing anymore. THANK YOU!!!!!
You will be very satisfied with Pauls e book. I have it and have purchased several dozen other books on the same field and it is the best of the best. He has a balance between the high tech and yet keeping it approachable by the student. Very thorough with graphs, charts, photos and video links. Also, his new video series availiable at a very reasonable price , is very informative along with the e book. He is a one of a kind instructor in the automotive field.
If you can’t learn different ways to check this engine then maybe you shouldn’t be working on engines. These videos are excellent resource and outstanding teaching abilities
Dude... I owe you a beer. Seriously. Same exact problem. Had the vehicle for two years, and went through tons of crap and lots of extra money. So pissed it was that simple, but happy it's working great now. Car runs soooo much better.
funny you ask. what you need is my eBook. go to my website (scannerdanner d o t c o m) ask around. I think you you find nothing but positive feedback on what I am offering. let me know if you have any questions or fill out your name and email on my website and I'll send you more info about the eBook
Thanks both of you guys I been fixing cars for over 40 Years and I love my 2008 Ford Escape 3.0. but I seeing it's getting to the point Car Dealer are getting to the point you can't replace the ECU with out going to the dealership and the new car have so many stupid thing that can stop your car from starting strongly thinking about going back to a 66 Mustang you can tuneup the car in 20 mins remove/install and rebuild the Engine in a weekend
Thank God I found this site. Have been tearing my hair out for 2 weeks trying to figure what was wrong (misfire #4 and #6) after replacing PCV, plugs, all coils. I would never have guessed I had the wires backwards (4 to 6 and 6 to 4; 5 is in middle either way) -- especially since the wrong way fits better as its longer. THANK YOU ScannerDanner
You just fixed my 2003 escape with the same Identical issue and at the same time, taught me to use my scope properly . Granted I don't have the same sexy probes you do, but this instruction got me to the same result! Yup, reversed 4 and 6. I saw them firing out of order just like this video. I have no idea when I did this or how, but it was all me that hooked them up backwards. Now I feel smarter, and humbled at the same time. Thanks a million for the video!
THANK YOU SO MUCH! I had the same symptoms on my engine after swapping from a Taurus and I assumed it was something from my friend stepping on the wiring harness, but I had just reversed them. This was my first engine swap and I was very discouraged by it all.
Wow. Thanks! I had the same issue with my car. My brother changed the spark plugs and we started having all sorts of problems. I thought I was going to have to junk the car. You're a life saver!
THANK YOU! Just replaced the valve cover gaskets(due to oil leaking into spark plug wells), spark plugs and all new coil packs. I got the coil packs for $24 for all 6 and did this for my daughter in law. After all the doubt in the cheap parts and my ability to do this, sure enough 4 and 6 were missing when I finished. After watching 8 videos tonight, I saw this one, ran out to the garage, switched 4 and 6 and she runs like new! You sure saved face for me! Makes me wonder how many Escapes went to the junkyard for this! 😂 Great job with the details as will. I have a decent amount of tools but not like you. I’m not sure I ever would have found it. Note: I took the wires off of the coil overs but my son put them back on-still my fault as I should have noticed it. Thanks again!
Funny thing is, it looks better (harness wise) when they are reversed. Good job doing your homework my friend. RUclips is a great resource for that when you find the right video
Man.... I got an estimate for $1500dls to repair this... and before I shot my self I looked on youtube and saw this video... go to the garage and fixed... dud your channel is my new religion!!!
Thank you so much. I also brought this with misfire problem did all the same tests and swapping plugs etc. Worked on it for days tearing my hair out. Soooooo happy now.
wow.man i wanna give you a hug.i had changed spark plugs and ignition coil on all cylinders.i didn't remember how the wire went.see too look write.car started to run like crap at times back fire.long story short you a life saver.i had the freaking wires reversed.Thank you so much for your educational videos.very help ful in my case and sabe me hundreds
This is such an easy thing to do wrong going back together like you said you would never look at it like that but someone putting it back together might not think the harness is supposed to be routed over the cable cover like that. Love this video great diagnosis and process!!!!
Excellent process and flow. I usually always goto sec ign voltage for a misfire case and it has always offered the most information in regards to the time it spends to do it. Great for finding direction towards the suspect system, fuel, mech, spark. Ur awesome. Thankyou, and love your brother's vids also. U guys rock.
you know it may have been a simple fix and by closely looking at it MAYBE it could have been found more quickly, but I am glad that ScannerDanner took the time and did all the testing. For me this is the enjoyable and learning part of his videos. If he would have just switched the wires right off I would not have gotten other valuable information on testing. thanks ScannerDanner and keep up the excellent videos!
Great question! The answer is no because the starter current humps are not cylinder specific. So even if i used one coil control voltage signal it would have lined up with a hump no matter what and you just wouldn't have known it was the wrong hump. i guess the only way you could have caught it would have been to remove the plug of the cylinder in test
I honestly thank you soooo much for this video!!! I fixed my car thanks to you after a month of headache and probably unnecessary troubleshooting and wasted money with the converter! Such a simple overlooked human error but thats life in many cases. This video is a god send! I did this fixed last night 4/13/15!
Watching the lecture videos that suggested we watch this video was a great way to see a "variable". But holly cow,all that work and money for a simple problem. As soon as I saw 240 degrees and your explaining the firing order it became clear what happened, that was a real good case study.
Thank you. I'm cramming now because I'll be taken away for three weeks and won't have access to many videos. I'll continue when I get back, this is fun!
my 03 escape had the exact same thing happen it had missed from the day I bought it but then it got really bad I replaced coil packs plugs intake gaskets fuel filter I did everything I could think of so I turned to RUclips and thank god u made this video I switched the wires around and bam the missing stopped the jerking was gone lack of power restored I then took my battery cable of for a few mins and now the check engine light is off ...thank u man I had lost hope that I would ever fix it
Thank you soooo much for your video. I too reversed the harness during a tune-up, and drove myself crazy trying to figure out why I had a misfire. The reverse trail of the harness looks correct, even though it isn't. Thanks again, and God bless you.
Thank you for showing this... I consider myself a shade tree mechanic, and know when to take it to the shop... This lets me get an idea why im paying 80 bucks or more to just diagnose a problem
I just changed my spark plugs today before watching this video. Everything went smooth. I was watching your video (it was very informative), and was really curious to what the answer to the problem was. When you grabbed the harness at the end, I figured it out. The wire does lay across the valve cover like that. Luckily, I could tell the dust line on the valve cover when I did my plugs!
Paul, This is one of your more interesting case studies. I learned a lot. Fascinating to see how the Pico and the transducer were used. But the question of why the mechanical pressure gauge showed correct time relationships was never addressed, unless I missed it. The moment you mentioned "240 degree's" I immediately thought "Hey, 240 is an exact multiple/divisor of 120 and 360". SO, I was already thinking about V-6 crank timing. Thanks
no, because the two reversed cylinders were NOT firing anywhere near TDC compression. so these two cylinders were a constant misfire. disabling the coils therefor did nothing
This is a great catch. In the old days with distributors and plug wires, checking the timing with a timing light was a standard part of any misfire issues. It is too easy to neglect it with modern coil over plug ignition systems. It's a good example of how useful it can be to label everything as you pull off the plug wires to do a tune up; a simple Sharpie marking pen could have prevented all the trouble.
with Secondary ignition measurements there is no need to worry about high voltage because what you read on the screen is only a representation of that voltage. The actual voltage you are sending into the scope is in the millivolt range.
I have been using a Fluke PV-350 and it worked great. I just recently got the Pico WPS-500 and just wanted to show it off. It provides a cleaner, more detailed picture with the advantage of calibrated scales already loaded into the pico software. Also with WPS-500 kit I now have all of the necessary adapters for fuel pressure and better hardened adapters for compression (eliminates in-accuracies in compression psi readings) Also they do make adapters to convert to and from a BNC type lead.
This just saved me. I replaced timing cover, intake, and valve cover gaskets. I did plugs while I was in there. Started up the car and it started shaking. I thought oh crap. I noticed I broke the crank sensor connector. Replaced that. Still had problems. I never thought I had the coils reversed. Went and swapped them. Rubs great now. NEXT TIME I will label the coils
thanks man. I worry sometimes that showing more of the little steps makes the video too long and maybe a little boring so that was nice to hear. i guess it means I need to do more of that.
Thank you so much for this video...you saved my wallet and my sanity!!!!!! I just wanted to change the spark plugs and then ran into this problem when putting everything back together. Took the intake manifold on and off 5 times thinking there was a vacuum leak or something. Engine light came on and got two codes for cylinder #4 & #6 which then led me to google and youtube. SO GLAD I came across your video, you saved my life! Thanks again!!!
Love how you break things down to make it understandable.. I'm a parts interpreter and was curious about how things are diagnosed.. and the way you broke down the diagnosis process really makes sense.. which we had some one like you in Australia
great video, I had the same problem cat cloked with misfire n nobody could figured it out, I ended up selling the truck real cheap, I wish I see ur video 5 years before....
Great job diagnose the problem! Impressive knowledge, I enjoyed watching you diagnose the problem with all those graphs…I don’t know how it works but you’ve figured that stuff out😅
Awesome!!!! I had somebody swap out the plugs a while back.. vehicle sat for a long time. Recently was trying to figure out how to get back on the road but was constantly having a problem. Your video just fixed it.
@@ScannerDanner i spent 2 months on it. Swapped out quite a few parts while at it. Irritating it was something so minor but i now have updated quite a few things that i won't need to think about.
I can't say enough words of how I loved this video. A most excellent video. This is also why i try to do all the work myself instead of taking it somewhere. Example. I had all the plugs replaced on my Mercedes at a specialty Mercedes shop for the 90.000 maintenance. To make a long story short. They put all 16 plugs in way too loose. I used a calibrated torque wrench from CDI and retorqued all plugs to the correct spec. I see a lot of carelessness in repair shops.
Great Video,this helped me,i have been driving my ford escape v6 for 3 years with wrong connected coils and the car was bloody misfiring like heel.......i even wanted to sell it:you saved my machine brother.....kicking like never before
I have a Comment directed to all of the people who have made rather negative comments below, including all those who suggest a DIFFERENT way of solving the particular problem that existed here.
The most important thing for EVERYBODY to realize is that Paul is an Instructor at a SCHOOL. He is a TEACHER. This is not a production shop where the objective is always to get the problem fixed as fast as possible and ship it out the door.
If you watch some of Paul's other videos, particularly if you watch a LOT of them, you will hear Paul point out, many times, that the problem that is diagnosed on various cars they get at the school MIGHT have been solved "faster" if different techniques were used. Paul has enough experience and "gut feeling" that he COULD solve many problems faster, on his own, in the field. Watch some of his video's where he is by himself, working out in the field. If you want to watch him do the FASTEST possible complete diagnos'es, with 100% confidence of the solution, that is where you will see it.
But that IS NOT THE POINT OF THE EXPERIENCE. His primary job is teaching students at the school. Remember these are STUDENTS, most with little or no experience doing diagnostics. Paul's job is to give them the strongest possible set of skills and knowledge in the two short months he has them.
New people going into the field NEED to know how to use ignition scopes, and they NEED to know all the in's and out's of scanners, and how to use all the features of the scanner.
It is the PROCESS of going through the initial assessment and then determing Direction. Watching all of the experiments that were done using the Picoscope teaches a LOT about how engine timing works. It helped me "think" in terms of what is actually happening inside the engine. Remember what an "odd-ball" situation this car was.
There are MANY ways to find a given problem, usually, but what typically happens in Paul's classroom and workshop is they go through as many of those process'es and methods as possible, as a learning experience. Watch the video about the Ford IAC. It will explain this whole idea better than I can.
Some students might end up working in environments where some of the fairly expensive and exotic instruments like pressure Transducers are not available, but other students WILL eventually have access to some of those tools. That pressure transducer is 750 bucks, so not everybody will have one early in their career, but the ones who can afford it will have a very useful tool.
I have never had any formal training in automotive work. I've worked on my own cars for 35 years. I thought I was a halfway decent mechanic UNTIL I started watching scanerdanner's video's. I've watched most of them now, many of them 2 or 3 times. I feel like I have gotten a Doctorate degree in Engine Diagnostics and Driveability, FOR FREE!
I don't even have Paul's book yet. I have a very decent compliment of mechanics' tools and equipment, but I don't yet have any kind of scope, or scanner. I plan to get both when I can afford them. About three years ago I had a no-start on my 1999 Sebring. Out of embarassment, I won't say how much time I spent trying to find the problem (it was DAYS).
What I will say, is that if I had an ignition scope, and the knowledge to use it, that I would have had the solution in less than an hour. Turned out to be the coil, even though the resistance of both windings was within spec.
If I had the same problem now, I would be able to find it almost immediately, if I had a scope.
So, the main point is, THOUSANDS, YES thousands, of people and professional techs have learned, and been helped, by the video's that Paul has created and posted.
SO, maybe some of us should leave our ego's at the door, and acknowledge that he is a gifted diagnostician, and a great teacher.
I have no affiliation of any kind with Paul Danner, or with his school or any equipement maker or seller. I don't work in the industry in any way.
Thanks for reading.
Wow man, thanks so much! You really did a great job of explaining why I go through the methods I do. It is all about equipping my students with as many "tools" (testing methods) as possible.
wow! thanks for making it clear for alot of the critics out there, whoever you are.
It's mainly kids making those comments. THEY KNOW IT ALL. Like nobody else has ever lived. Any experienced mechanic would know better and keep their ignorant comments to themselves, The kids just show their ignorance and immaturity like children do.
douglas lee You know, he also mentioned that it had been to a couple shops and they didn't find it. They just changed parts and failed. It's typical of people to pretend like they know better. That's why I don't bring my cars to a shop... ever! All the shops where I live are terrible.
douglas lee waw congrats.well said bro.I am from Haiti.Mr Danner congrats
This guy is awesome. I bought this o4 ford escape very cheap due to simple engine misfiire.previous owner gave up after replacing numerous brand new ignition components, sensors, coins, including whole exhaust front to tailpipe..so I bought it,convinced i would find problem.. well after so many headaches i said , " the heck with this Nice looking P.O.S" but if not for this professional,genius,considerate, and dedicated individual who took his time , patience and effort to do this video, I got her driving like a dream...I got vehicle for a while!!!! GOD WILL BLESS YOU FRIEND!! MY KIDS AND I TRULY APPRECIATE UR GREATNESS..
Love this! And I'm glad that you and your family benefitted from this video. Nice job on your part!
I had this issue today. Replaced spark plugs, valve cover gaskets and grommets, oil change, transmission fluid change (not a flush), air filter and fuel filter change, and cleaned TB.
Started my Escape and had this misfire issue, one of the coil pack wires broke, made a new connection and soldered it, and it kept misfiring.
Paused, looked for a similar situation for my Escape on ScannerDanner channel, and here it was. Even though I don't have all the tools, I did switched the coil packs around and the misfire/not firing was on the same 4 and 6 cylinders. Spark plug coils were connected wrong. Switched them and a whole new Escape emerged.
Thank you for all the videos and teaching you do. Very thankful you share your knowledge on RUclips.
Regards from Monterrey, Mx.
Sweet
Did valve covers on this same car two days ago, did not mark coil wires and scanner (did not) show misfire even tho vehicle was clearly misfiring.Would have never thought I crossed those wires because of the way they reach.Took intake back off twice looking for a unplugged wire or hose.was just about to set car on fire when I found your video LOL. WOW MAN.WOW. Professional mechanic 30yrs. Did I say WOW! Saw your video and went to my Job on Sunday I was so excited to see if this was the issue.Yup it was.WOW MAN.A lot of techs and mechanics know how to run test and use a scanner,you do something a lot different from most of us.I tip my hat to you.
Exact same here, three weeks of un-doing and re-doing, and troubleshooting, all to no avail. I watched this video, even though I didn't have the fancy diagnostic tool, and discovered I had made the same mistake! THANK YOU!!
GREAT detective work. Many years ago I got a call from a restoration shop working on a loaded 68 Mercury Cougar. Car would crank but not run. New plugs , cap, wires, points, etc. The guys were frustrated to say the least. I noticed early on that the dash was apart and the instrument cluster was out. Most Fords of that era ran the ignition thru the tach. I hooked up the factory tach double connector and told the guy to try it. The Merc started right up. Sometimes you have to go with the basics. Thanks for all your videos.
gf bought an 04 escape with a misfire... she didnt bring me with for that purchase, anyway ive been trying to figure this shit out for two years. finally replaced the exhaust manifold gasket (etc) the catalytic converter and the o2 sensor hoping that the cat was the problem... nope. it was worse. checked the plugs, the coils, misted the engine in the dark, asked everyone i know etc etc... while i was having a few beers preparing myself for a failing compression test, i saw this vid... clicked on it. read the description. went outside. reversed 4 and six, since they were both misfiring... and the problem is history.... the gasket was fucked, the cat was fucked and the 02 sensor was probably fucked, so i didnt end up wasting any money and i stumbled across the right vid at the right time. thanks for the upload ScannerDanner
lol, I still feel that way about what I know. Here is how it goes.....the more you learn in this field, the more you realize how much more you need to learn.
give yourself some time my friend, I just simply have 20 years on you and am learning everyday myself. your time now in the field is where all of your education will come together. there is no substitute for a "bad call" on a diagnosis. you'll never forget it and never do it again
Awesome! The compression loss due to cylinder wash is a very important variable! Just had a 2001 Escape with the same 3.0 V6 with an unplugged coil that showed no compression whatsoever on one of 6 cylinders. Compression came back after running the engine for a few minutes. Had this video in the back of my mind while connecting the front three coils too lol
Hi Paul. You remind me of a (then) teenage neighbor of mine Steve Woods dating back to 1965 when I was only 8 years old. We could go outside any time of the day and see him under the hood of a car out on the street working away.
Anyway, one of the most valuable lessons Steve taught me, where any kind of ignition or firing problems are involved, is to always check the ignition wires first to ensure they exactly conform to the firing order posted on the engine block or hood sticker. Particularly where weekend warrior or novice mechanics become involved.
Steve was working on an engine one summer afternoon which was missing badly. A glossy jet black 450 V8 Pontiac Firebird which had a sparkling metallic gold "firebird" overlay across its hood. Totally sweet and a thing of beauty to be sure!
We could see from the attached diagnostic equipment (dwell/tach gauges & timing lamp) the timing needed to be seriously advanced. So as you'd fully expect Steve proceeded rotating the distributor in the customary manner. But he couldn't advance it to the point needed since the distributor had reached its stop at the extreme CCW position.
After a single minute of head scratching and deep thinking he came up with a very clever solution I'll never forget. It involved manually advancing the ignition wire (firing) order by +1; rather than advancing it the usual way using physical distributor rotation. Once the wiring firing order was advanced accordingly he rotated the distributor back near center position and the timing read smack dead on and that engine ran like a wet dream forever thereafter.
Rather than just 2 of the ignition wires being out of proper firing order they were all offset by -1 relative to the entire sequence. That, essentially being the same underlying errant cause you identified in this case study just carried to the fullest possible extent.
One of my greatest regrets in life was not spending every waking moment out front of Steve's house watching his every move. At the youthful age of just 16 he was one of the most dazzlingly talented mechanics I've ever had the privilege of getting to watch let alone stand next to shoulder to shoulder. A truly gifted mechanic in all regards. You impress me in all those same ways Paul.
Excellent tutorial. Watching your videos for a few weeks has given my career a bit of a boost. Been in "the trade" here in the UK for 30+ years, and have up to now, been relegated to engine, transmission, and suspension work. Over the past week alone, I have had 3 noteable successes, and raised eyebrows when I broke out the scope leads for our aged MODIS for the first time ever, and got to the bottom of a problem that has haunted the garage for months. So I'm feeling confident that had you used the low amp clamp on each coil lead, with a high amp clamp on the starter cable individually, instead of all 3 together (14:20) you'd have picked up on the discrepancy without the pressure transducer. If I'm right, you've tought me well. If I'm wrong. Time to retire lol... Thanks man...
What I enjoy most about your videos, is that you show the step by step ways you diagnosed the problem. Even how you changed the settings on the scope. How you hooked up the test equipment. This makes the learning process easy and allows us to duplicate the tests in the field. Thank you for all your great teaching.
I cannot even remember the last time the screen saver was turned on in the middle of watching a RUclips video. So that shows you that your video making style is very educational and entertaining. Thank you for all your hard work.
I’m an electronics technician.
My simple rule.... mark/label before you remove!
Take photos.
Remove one at a time.
This guy is by far the best instructor I have listened to!
Great video I swapped number 4 and 6 and it immediately ran better. Thanks so much because I was about to replace everything under the hood
This is barely the second time adding a comment on thousands of videos watched. But a sincere thanks for this very detailed video. You saved me a couple hundred bucks. You made a subscriber.
Man ! This was exactly what was wrong with my car ! Thank you so much ! I have done so much work to try and figure it out and this was exactly the problem 😱
Just tried it on mine and sure enough, the engine fired right up!. still a bit erratic at idle, but that could be a bad O2 sensor or dirty injectors. hell, just getting her out on the road and giving her a good hard run should clear a lot out too.
Thanks for the video and to whoever linked it to me!
bobby gray yeh its a standard Duratec 30, seems to be pretty potent just driving it in the backyard, now to do a few more little things then get her out on the road :D
No fair ilictrec sparflug woht diferins
Just wanted to say, I watched this video when you posted it, and since then I've seen (and fixed) this exact issue multiple times. That's why I watch, keep it up!
Dear Mr Danner. I can't tell you how many times i have considered the wiring harness to be the writing on the wall with regards to where to plug in the injectors. Once again you have shown how enhanced evaluation, is vital to profitability and effectiveness. There's no shame that the other garages were unsuccessful;:this one would have thrown me for a loop also. You evaluated a lot of issues that has made this on of the most informative videos to study. Can't say it enough. Thanks you
I made this exact mistake when doing a full tune up on my wife's car. This video saved my ass. Thank you sir
I paid a shop to diagnose my car not starting. I knew it had fuel and spark. Turns out it didn't have enough spark. Needed a cap and rotor. I told them thanks, but I'd do the work myself. A-holes reversed my wires. Misfired like crazy, but I figured it out pretty quick. Great video!
That has taught me a huge lesson to never assume anything. Without the proper equipment and knowhow you could be looking for that problem until your hair turned grey and fell out. AWESOME diagnosis.
Your son, daughter, wife, your ancestors that have past and your local community looks up to u as well as I. Thank u for your video of no short cuts.
quality information is given away for free and people still complain. as an 02 3.0 escape owner I could face the exact same issue and am very grateful i have this free pro advice.
Paul,I have checked the wiring color on each coil,n I don't know how in the world I didn't notice that,thanks you man.You,yes You fix my costumer scape,this customer bring this truck from another shop,with the same issue,after three days of working in this truck,dreaming and almost going in a frustration mode,I prey God this morning and he put your video in my way,thank you man and God keep blessing you.
He does car about the little things. Thanks for the reminder to put my trust in Him above all else.
Best auto technician i've seen in a long time, breaks it down to bare science and mathematics on every diagnosis.
that's a great offer! I am just completely overwhelmed right now trying to get this video lecture series done, plus all the other things I do. maybe when things settle down for me a little bit, we'll talk
thanks again!
Watching Paul fix this was like watching Hercule Poirot solve a murder mystery and every bit as entertaining. I’m hooked!
The process you used is always the best way to drive home diagnosing a problem. I went to HVAC & R school many years ago and the lengthy diagnostics way back then affords me the knowledge and experience to ID problems like this a lot quicker. You are spot on and this is how you learn to be a master of your craft.
Thank you Mark!
Never commented on RUclips before, but I watch a lot of car repair videos. Not only was this one spot on with what I was dealing with, but it was very well recorded. Easy to understand and follow along. 5stars would visit again!
+M Oconnor awesome! thanks man. really appreciate your comment
You deserve 1 million subscribers. I’m certainly subscribing. I have this issue. I told the guy to replace the coils. He replaced one....... dishonest
Aaaaaamazing, a client came with the same misfire problem. he told me the engine was just replace ! replaced the melted cats ,took a look at the egr spark ......spent 2hours cheking then i came across your video .....and believe it or not the wiring harness was upside down just like you! Tank you i saved a lots of time thanx to you
sam monette cool man, thank you!
An excellent video demonstrating the use of advanced test equipment coupled with the knowledge of how to interpret their data. Prior knowledge, experience and history solves many problem cases, but the remaining 2 to 5% are the jobs that kill a shop's productivity. I appreciate you taking the time to show us in "slow motion" the logic used in troubleshooting an electromechanical system, along with the tools that give you the necessary information to come to a correct solution. Great job!
Another great video, it's so easy for something to look right, like the original loom routing, and therefore be assumed right. Back to basics and proper methology won through, a very very good video, and a warning for us not to assume anything on "awkward" engine faults. Thanks again!
I'm glad you liked it. Thanks for the comment!
thanks man. fortunately this one is at my school, so it is a no charge and there was no pressure on me. I love a good "headache" car at school for that reason.....no pressure
@prmayner any chance of getting those waveform from you? im still learning the in cylinder transducer stuff
It's amazing that no one before tried that method as a part of a checklist.... Sometimes we look deep when things are right under ur nose... I learnt a life lesson, hope everyone did
Great content. Learned a lot. As always you explain things very well, take the time to show the little details. Love these type of repairs. It's the strange problems that really test your foundation. Thanks Paul.
Mr. Danner: Thanks so much for teaching me that there is hope for PROPER, Smart, young techs around that GET the right equipment, and learn how to use it right. You have a subscriber for Life, for all the problems I just can't get. Also..... those other
2 shops are the way most dealerships operate....just to rip off the customer. I will be going through all the rest of your videos to keep current with all the latest tips and tricks. Thanks again just for being thorough & honest. (I read below in the comments that you are a teacher) ! Great! Who better to learn from.
There's a good example of how a moment of inattention by one of the first people to work on the car lead to a huge, expensive problem. Also, it's a good example of a recurring theme in diagnostics -- keep your thinking simple and go at the problem in an orderly sequence. Without the pressure transducer you could have done this by showing cyl#1 spark on one channel, and other cylinders on channel 2, looking at spark delay to be sure spark was firing in the correct delay order from #1.
Great job!
I CAN'T GET TIRED OF WATCHING YOUR VIDEOS. Excellent.
I was just watching this and thought, I don't have all these tools and tests, and I'm not going to know if this is my problem... But I just went out and swapped my 4 and 6 coil plugs, and BAM! car running like a champ and no codes firing anymore. THANK YOU!!!!!
Nice! Something most people miss on this channel. If you ignore the fancy tools, you will pick up things you can adapt with what you have. Thanks!
@prmayner yes you could. and ouch on the intake crack, was it the idle compression psi that was low? im sure cranking was normal right?
thank you very much. you won't be disappointed.
You will be very satisfied with Pauls e book. I have it and have purchased several dozen other books on the same field and it is the best of the best. He has a balance between the high tech and yet keeping it approachable by the student. Very thorough with graphs, charts, photos and video links. Also, his new video series availiable at a very reasonable price , is very informative along with the e book. He is a one of a kind instructor in the automotive field.
Thank you my friend. I am glad you liked it.
If you can’t learn different ways to check this engine then maybe you shouldn’t be working on engines.
These videos are excellent resource and outstanding teaching abilities
Dude... I owe you a beer. Seriously. Same exact problem. Had the vehicle for two years, and went through tons of crap and lots of extra money. So pissed it was that simple, but happy it's working great now. Car runs soooo much better.
Cool man, glad it helped you. Thanks!
funny you ask. what you need is my eBook. go to my website (scannerdanner d o t c o m)
ask around. I think you you find nothing but positive feedback on what I am offering. let me know if you have any questions or fill out your name and email on my website and I'll send you more info about the eBook
Thanks both of you guys I been fixing cars for over 40 Years and I love my 2008 Ford Escape 3.0. but I seeing it's getting to the point Car Dealer are getting to the point you can't replace the ECU with out going to the dealership and the new car have so many stupid thing that can stop your car from starting strongly thinking about going back to a 66 Mustang you can tuneup the car in 20 mins remove/install and rebuild the Engine in a weekend
Thank God I found this site. Have been tearing my hair out for 2 weeks trying to figure what was wrong (misfire #4 and #6) after replacing PCV, plugs, all coils. I would never have guessed I had the wires backwards (4 to 6 and 6 to 4; 5 is in middle either way) -- especially since the wrong way fits better as its longer. THANK YOU ScannerDanner
Agree, it looks better when it is wrong! 🤣
Thanks for the comment and I'm glad it helped you
DEAR SIR: YOUR DIAGNOSTIC ANALYSIS IS THE CLEAREST AS CLEAR AS THE SUN LIGHT. YOU ARE BLESSED. THANK YOU. YOU ARE OUR BEST ASSESTS.
Thank you!
You just fixed my 2003 escape with the same Identical issue and at the same time, taught me to use my scope properly . Granted I don't have the same sexy probes you do, but this instruction got me to the same result!
Yup, reversed 4 and 6. I saw them firing out of order just like this video. I have no idea when I did this or how, but it was all me that hooked them up backwards. Now I feel smarter, and humbled at the same time. Thanks a million for the video!
+Adam Hoge no problem! Thanks for watching and I'm so glad you fixed your problem. Hopefully you didn't damage the cats
I'm guessing it's toast, but that will be next on my list to check out.
THANK YOU SO MUCH! I had the same symptoms on my engine after swapping from a Taurus and I assumed it was something from my friend stepping on the wiring harness, but I had just reversed them. This was my first engine swap and I was very discouraged by it all.
that's great! hope this video is good for you guys in showing what the tool can do.
thanks for the comment
Paul
Wow. Thanks!
I had the same issue with my car. My brother changed the spark plugs and we started having all sorts of problems. I thought I was going to have to junk the car. You're a life saver!
THANK YOU! Just replaced the valve cover gaskets(due to oil leaking into spark plug wells), spark plugs and all new coil packs. I got the coil packs for $24 for all 6 and did this for my daughter in law. After all the doubt in the cheap parts and my ability to do this, sure enough 4 and 6 were missing when I finished. After watching 8 videos tonight, I saw this one, ran out to the garage, switched 4 and 6 and she runs like new! You sure saved face for me! Makes me wonder how many Escapes went to the junkyard for this! 😂 Great job with the details as will. I have a decent amount of tools but not like you. I’m not sure I ever would have found it. Note: I took the wires off of the coil overs but my son put them back on-still my fault as I should have noticed it. Thanks again!
Funny thing is, it looks better (harness wise) when they are reversed. Good job doing your homework my friend. RUclips is a great resource for that when you find the right video
Man.... I got an estimate for $1500dls to repair this... and before I shot my self I looked on youtube and saw this video... go to the garage and fixed... dud your channel is my new religion!!!
that is freaking awesome man thank you so much for sharing
Thank you so much. I also brought this with misfire problem did all the same tests and swapping plugs etc. Worked on it for days tearing my hair out. Soooooo happy now.
wow.man i wanna give you a hug.i had changed spark plugs and ignition coil on all cylinders.i didn't remember how the wire went.see too look write.car started to run like crap at times back fire.long story short you a life saver.i had the freaking wires reversed.Thank you so much for your educational videos.very help ful in my case and sabe me hundreds
awesome Felix!
Thanks man. I really appreciate the comment
This is such an easy thing to do wrong going back together like you said you would never look at it like that but someone putting it back together might not think the harness is supposed to be routed over the cable cover like that. Love this video great diagnosis and process!!!!
Excellent process and flow. I usually always goto sec ign voltage for a misfire case and it has always offered the most information in regards to the time it spends to do it. Great for finding direction towards the suspect system, fuel, mech, spark. Ur awesome. Thankyou, and love your brother's vids also. U guys rock.
Absolutely amazing... just finished the video.... this is the stuff that needs to be on cable...
Fantastic video. THANKS for posting. Wow, the PicoScope is an incredible diagnostic tool.
thanks for the video ive been stumped for months and i switched the cables today and it works so thanks again great video
you know it may have been a simple fix and by closely looking at it MAYBE it could have been found more quickly, but I am glad that ScannerDanner took the time and did all the testing. For me this is the enjoyable and learning part of his videos. If he would have just switched the wires right off I would not have gotten other valuable information on testing. thanks ScannerDanner and keep up the excellent videos!
Myles Gainer
that's awesome man! thanks for the comment and for giving me a chance
Great question! The answer is no because the starter current humps are not cylinder specific. So even if i used one coil control voltage signal it would have lined up with a hump no matter what and you just wouldn't have known it was the wrong hump. i guess the only way you could have caught it would have been to remove the plug of the cylinder in test
I honestly thank you soooo much for this video!!! I fixed my car thanks to you after a month of headache and probably unnecessary troubleshooting and wasted money with the converter! Such a simple overlooked human error but thats life in many cases. This video is a god send! I did this fixed last night 4/13/15!
You are amazing! You help me fix the issue. Had same problem when ignition wire was swapped 4 & 6.
Watching the lecture videos that suggested we watch this video was a great way to see a "variable". But holly cow,all that work and money for a simple problem. As soon as I saw 240 degrees and your explaining the firing order it became clear what happened, that was a real good case study.
+wyattoneable keep it up brother! You will not be a DIY guy anymore
Thank you. I'm cramming now because I'll be taken away for three weeks and won't have access to many videos. I'll continue when I get back, this is fun!
my 03 escape had the exact same thing happen it had missed from the day I bought it but then it got really bad I replaced coil packs plugs intake gaskets fuel filter I did everything I could think of so I turned to RUclips and thank god u made this video I switched the wires around and bam the missing stopped the jerking was gone lack of power restored I then took my battery cable of for a few mins and now the check engine light is off ...thank u man I had lost hope that I would ever fix it
+cody mcguffin awesome, glad to help
Thank you soooo much for your video. I too reversed the harness during a tune-up, and drove myself crazy trying to figure out why I had a misfire. The reverse trail of the harness looks correct, even though it isn't. Thanks again, and God bless you.
2 hari nyari masalah escape brebet. Ternyata Gw pasang kabel coil kebalik. Alhamdulillah ada video ini. Terimakasih banyak ngab. 😘😘😘
Thank you for showing this... I consider myself a shade tree mechanic, and know when to take it to the shop... This lets me get an idea why im paying 80 bucks or more to just diagnose a problem
I just changed my spark plugs today before watching this video. Everything went smooth. I was watching your video (it was very informative), and was really curious to what the answer to the problem was. When you grabbed the harness at the end, I figured it out. The wire does lay across the valve cover like that. Luckily, I could tell the dust line on the valve cover when I did my plugs!
Paul,
This is one of your more interesting case studies. I learned a lot. Fascinating to see how the Pico and the transducer were used.
But the question of why the mechanical pressure gauge showed correct time relationships was never addressed, unless I missed it.
The moment you mentioned "240 degree's" I immediately thought "Hey, 240 is an exact multiple/divisor of 120 and 360". SO, I was already thinking about V-6 crank timing.
Thanks
no, because the two reversed cylinders were NOT firing anywhere near TDC compression. so these two cylinders were a constant misfire. disabling the coils therefor did nothing
This is a great catch. In the old days with distributors and plug wires, checking the timing with a timing light was a standard part of any misfire issues. It is too easy to neglect it with modern coil over plug ignition systems. It's a good example of how useful it can be to label everything as you pull off the plug wires to do a tune up; a simple Sharpie marking pen could have prevented all the trouble.
Another outstanding video Paul, keep up the great work!!
Im an EE and youre makimg me want to get into advance engine diagnois and repair , wow this is exciting stuff ! Nerding out
Haha nice! Thanks
you are very welcome. glad this video helped you
This must be one of the must professional videos I have seen in RUclips. Thanks.
Anthony Benitez thanks Anthony! I have so many more, hope you enjoy them and thanks for the comment
with Secondary ignition measurements there is no need to worry about high voltage because what you read on the screen is only a representation of that voltage. The actual voltage you are sending into the scope is in the millivolt range.
thank you!
I have been using a Fluke PV-350 and it worked great. I just recently got the Pico WPS-500 and just wanted to show it off. It provides a cleaner, more detailed picture with the advantage of calibrated scales already loaded into the pico software. Also with WPS-500 kit I now have all of the necessary adapters for fuel pressure and better hardened adapters for compression (eliminates in-accuracies in compression psi readings) Also they do make adapters to convert to and from a BNC type lead.
This just saved me. I replaced timing cover, intake, and valve cover gaskets. I did plugs while I was in there. Started up the car and it started shaking. I thought oh crap. I noticed I broke the crank sensor connector. Replaced that. Still had problems. I never thought I had the coils reversed. Went and swapped them. Rubs great now. NEXT TIME I will label the coils
thanks man. I worry sometimes that showing more of the little steps makes the video too long and maybe a little boring so that was nice to hear. i guess it means I need to do more of that.
Thank you so much for this video...you saved my wallet and my sanity!!!!!! I just wanted to change the spark plugs and then ran into this problem when putting everything back together. Took the intake manifold on and off 5 times thinking there was a vacuum leak or something. Engine light came on and got two codes for cylinder #4 & #6 which then led me to google and youtube. SO GLAD I came across your video, you saved my life! Thanks again!!!
+Mike Fromson sweet! Glad I could help you
Love how you break things down to make it understandable.. I'm a parts interpreter and was curious about how things are diagnosed.. and the way you broke down the diagnosis process really makes sense.. which we had some one like you in Australia
great video, I had the same problem cat cloked with misfire n nobody could figured it out, I ended up selling the truck real cheap, I wish I see ur video 5 years before....
thanks, the scope I am using is the Picoscope 4000 series Automotive kit.
Mr. Danner your awesome, this certainly has opened my eyes to look outside the box when doing my diagnostics. Thank you for the great information
Great job diagnose the problem! Impressive knowledge, I enjoyed watching you diagnose the problem with all those graphs…I don’t know how it works but you’ve figured that stuff out😅
Awesome!!!! I had somebody swap out the plugs a while back.. vehicle sat for a long time. Recently was trying to figure out how to get back on the road but was constantly having a problem. Your video just fixed it.
Awesome!
@@ScannerDanner i spent 2 months on it. Swapped out quite a few parts while at it. Irritating it was something so minor but i now have updated quite a few things that i won't need to think about.
I can't say enough words of how I loved this video. A most excellent video.
This is also why i try to do all the work myself instead of taking it somewhere. Example. I had all the plugs replaced on my Mercedes at a specialty Mercedes shop for the 90.000 maintenance.
To make a long story short. They put all 16 plugs in way too loose. I used a calibrated torque wrench from CDI and retorqued all plugs to the correct spec. I see a lot of carelessness in repair shops.
Great Video,this helped me,i have been driving my ford escape v6 for 3 years with wrong connected coils and the car was bloody misfiring like heel.......i even wanted to sell it:you saved my machine brother.....kicking like never before
how many cats did you melt down in this time period? Thanks! Glad this helped you!
anytime my friend and thanks for the book purchase too!