Im a qualified mechanic with 19 years exp (New Zealand) and I am very impressed with your natural diagnostic ability. I wish we had a wise man like yourself in our workshop, you would make an excellant service manager!. Thanks for sharing, you have a subscriber for life. Edyn
You are the man, I think your videos are the best. Thank You for fixing my car. It took less the 3 hours to fix. Saved >600 Dollors My wife is crying for joy.
Dudes, I wish I have fellas like U in my town. Too many auto repair shops here have really bad reputation for ripping off unwitting people. I've been a victim of such, once or twice; and the more I learn from people like U guys, the clearer I can identify the petty thugs who misrepresent themselves as auto mechanics. Big thanx to U guys, and the honest ones out there. :)
That was an awesome teaching! The method of finding out about the misfire is not complicated yet effective. Thank you so much for sharing this information with us. God bless you.
excellent, I wish all the techs I've had work on my rigs were as thorough at diagnostics instead of seemingly replacing random parts and hoping something works. Thank you and I hope I can find my misfire issue with this information.
Thank you for posting this video, I have a 2005 Nissan Altima 2.5 that gave a P0301. Quick list of work, replaced the; valve cover, gasket, ignition coil, spark plug (which was covered in oil because the valve cover was cracked), ignition coil wire connector, and did the rpm drop test. The drop test showed no difference in power for one and drastic for the rest. Thanks to your video I can now test the injector which should speed along my repair. One of few exceptional videos to help with difficult repairs.
Right back to the basics. This was a very good video. I knew all of this but, for those that don't, This was a VERY INFORMATIVE video. Job well done. Thanks
For most folks who lack the equipment used here, try this, It's what mechanics did before computers: Run engine; Use well insulated pliers, and remove one plug lead at a time, and listen for the revs to drop or have someone watch the tachometer. If the revs don't drop at a particular lead (or leads) then that is the bum cylinder/plug/lead. If your ears ain't finely tuned to picking up a misfire, after finding a good cylinder, leave it off as well, adn the misfire on the bad one('s) will be more apparent. To test injectors, just crack the union on the pipe one by one and note drop in revs -if no drop, it's faulty. BTW, a spark plug operating outside the engine at room temp and atmospheric pressure is NOT a guarantee that it is working inside the cylinder. It usually is, but it's not definite. Just swap the plug or injector from the bum cylinder with one from a good cylinder -if the misfire then switches cylinders, you know then it's a bum plug or injector.
And the diagnosis people were better. Had to be. Like a GPS unit, GREAT tool !! But not like the human brain. What if power goes out in the shop ? What if the screen gets dropped ? Can a car be patched to get home ? Lost skills. I am 70, been working on cars since age 15.
I love watching a pro work. A union construction worker retired. And it doesn't matter the trade there is something to watch someone is has mattered their craft .
most driveabilitry techs are honest and skilled. i noticed he did not inspect the plug(s) at home you can use that as an indicator of rich/lean. when you dont have your harbor freight spark tester, you can ground the threads to the floor panel and crank/start. i would recommend cleaning the causal tank and or both if equipped. or sample/ filter/ refill. clean the injector rail too. replace 6 if dirt found forward of filter
This is what differentiates a really good mechanic from some do it your self-er on You Tube. All they want is to look as cool as possible with limited mechanical skills. With my 10years experience on the field, I can spot one who is just bull shit to someone who really knows. Thank You for the videos MR.Realfix
ANNOYING DOOR CHIME, you offered many great points. no need to remove the ignition key... just defeat the door switch with heavy duty duct tape and a quarter piece coin to hold the door switch in place... DEFEATED!
I'll throw in my hat if it helps. Mine is an 01 Dakota 3.9 V6, 100,000 miles. I had a misfire on 1 and 3, and misfire on multiple cylinders. I changed the throttle position sensor, IAC sensor (I didn't do the MAF sensor yet), crankshaft position sensor, replaced spark plugs, spark plug wires, air filter, checked compression, checked for spark, and anything and everything else I could think of, and everything worked good, and after 2 years it was still no help.What finally fixed it for me was changing the two upper O2 sensors. And I just happened on that by mistake. I had been meaning to change them out just because I knew they were old. The two lower ones were tight, so I never got those off. So I replaced one of the upper ones, and the truck ran 1/2 better. I then replaced the other, and boom, all good. I know everyone is throwing a ton of ideas out there, BUT everyone's ideas are ALL legit. I mean, the whole process from air intake to combustion to exhaust all needs to work right. And if something along the line fails, it can cause a misfire. If you want to try a cheap trick, remove or disconnect the upper O2 sensors and drive it around (This will probably throw an O2 code, but big whoop). If it doesn't misfire, you might have your diagnosis. I figured my O2's were clogged up and thus sending bad info to the computer, which in turn was sending bad info to the other sensors responsible for combustion.
great stuff i dont have all the new tools but u show and explain enough to be able to find the problems. my wifes 08 hyundia accent throws a p0303 witch is #3 misfire. i have been through plugs (new) boots i was suspecting a valve but now i am going to checkinjector #3
By about 2:00 in when you covered a vacuum gauges use that I've never seen before you had me subscribe. Use the vacuum gauge...if it's steady then all of the motor is creating vacuum steadily? Right, don't take the extra time at this point and do a compression test or leak down test. Makes sense. If you can think of a time where you should do the extra tests anyway, let me know.
Let me review what I learned for my benefit. I knew that a dirty/bad MAF was a common way for Ford's to show a lean code on both banks P0171 and P174, but what I didn't know was that method of checking injectors. First you confirmed spark. Then you checked the fuel injector wiring harness with a noid light. The ECU was giving the command to fire. You used a power probe to command another injector. It dropped the fuel pressure, while the misfiring cylinder did not. Thanks again for the video!
great information, a little loud considering that you do have other vehicles running. I have a 1988 chevy 4x4 with a 350 TBI. I had an exhaust leak on the passenger side on the header. I replaced that. Now I hear and can feel a drag in the power side meaning that I think it may be bad fuel. distributor replaced cause it wasn't keeping time. Plenty of rust and a big chunk of metal was in the cap. but I have popping noises and I have t find a sweet spot to make the truck go.really shook the truck
I had to replace the injectors on a Nissan Maxima. Had to remove the plenum, lower intake manifold which required replacing the gaskets. Finally pulling the injector wasn't so easy without the special tools they have for that. So in a case like this, you want to be DAMN SURE the injector is bad BEFORE you replace it. The Maxima is a pretty good car. This one has well over 200k on it and it's still going strong.
I've watched so many of your videos & need to say Thank You for keeping it easy & simple on all ur testing methods💪💯💪💯 Yazmin...Venice Beach CA ⛱️ ⛱️ ⛱️
ya I like it too at 5000 for a used one and 10,000.00 for a new one and having to update it every 3 years at 2500.00 ya. Why don't you buy us all a snap-on computer sounds like you have money
A timing light can check for misfiring plugs. The light should flash consistently. If it is erratic, it could be the plug or wire or cylinder, or intake gasket, or coil, or module. If the light flutters, it's the module.
Well, my Volvo's injectors are connected to a fuel rail which is easily removed with two 10mm bolts. The rail is designed to swing backwards while still connected to the fuel line so swapping an injector takes about five minutes, from popping the hood, to starting the engine. Obviously, on a less well-engineered car, you would find yourself testing them with a multimeter first, then pulling them, cleaning them, replacing, etc... That's why I buy good cars ;-)
( 2001 audi 2.8 ) i got misfires on one bank but not the other side and when i look at the fuel trim was pos on 1 bank but neg on the 2 bank where i me getting the misfire at and i check and replace all air lines and spark pugs and wires
@1PossumJenkins Nope - the cyl is still drawing a vacuum. The rings are still sealing against the walls, the valves are still seating correctly in the seats. Vacuum has nothing to do with spark/ignition or fuel supply outside of timing. If you've got a bad valve or something sideways in the bore (or a bad vac line) - you'll see the bounce.
There are bad shops out there, no doubt, but there are a lot of good honest, hard working mechanics/technicians as well. I still do a lot of my own work, but I use a local shop sometimes if I have a problem I can't or don't want to work on. These guys are honest and good mechanics. I found them by looking up reviews on their shop. One negative review complained about a car that had an intermittent problem and they couldn't fix his problem so they gave his car back at no charge. I have worked on intermittents in electronics and I know it is hard to fix a problem that ain't there to troubleshoot. So, I thought that sounds like an honest shop to me and I started using them.
Question: Could I substitute a 12V power supply instead of purchasing a power probe. I can rig up a supply for the injector test? Also can you use a Fluke meter instead of a NOID light to monitor the computer control signal to the injector??
@1PossumJenkins Vacuum is not created by cylinder firing, just by the movement of the piston assuming valves/rings etc are all ok which can be verified by a compressions test.
great work men my.truck loses power 'll the time hard acceleration pedal I changed spark plugs fuel filter air filter oil change got little better problem still there.don'know what to do no more
Roger Pack Some folks would disagree with me but, my father introduced me to Harbor Freight a long time ago. Some of their tools should be avoided like the plague but, these simple tools are inexpensive and do the job just fine.
Go to amazon. select automotive, then tools and test equipment, search for Vacuum Gauge, Noid light, code reader. I am hesitant to send you this info, if you couldn't figure this out on your own, doubt you'll be very successful using them but admire you wanting to so go for it.
Nice job, I like your quick overall diagnostic steps. Vacuum, clean the Mass air flow due to potential of causing lean codes, confirmed spark, confirmed computer control of injector and finally fuel pressure drop when injector actually fires. Question, what type of current pattern would this injector have presented compared to the other good injectors? Thanks.
Gostei do que vi, e me deixou muito curioso. mas infelizmente não sei inglês para entender as explicações. Por exemplo na cena em que o especialista usa um Probe conectado a um ponto,e simultaneamente ele usa uma espécie de vacuometro. Porém não se ouve neste momento o som do motor e sim uns apitos e sons de sininho. Não deu pra saber como este teste estava sendo feito. o que estava acionando o vacuometro era uma bomba de vácuo? Parece ser uma ótima aula mas não sei inglês.
I wish you were my mechanic. I go to Ford by my house and they messed up things on my 01 ford focus. I've had a piston replaced, all 4 valve seats replaced, head at the machine shop, and now latest problem started 7.4.13 at shell gas station by my house, I was about quarter tank before fueling and topped off about 50 cents or less isn't much but when I started my car, started turning over but vibrations and stalls unless i apply foot on gas petal until car fully runs or chokes off.
@1PossumJenkins vacuum would dip if there was something like an intake valve burnt or not seating. This would bring in pressure, thus causing a drop in vacuum.
Im a qualified mechanic with 19 years exp (New Zealand) and I am very impressed with your natural diagnostic ability. I wish we had a wise man like yourself in our workshop, you would make an excellant service manager!. Thanks for sharing, you have a subscriber for life. Edyn
This guy is methodically thorough. Excellent diagnostic process.
Excellent training ,isnt it amazing that every electrical component in a vehicle will fail but that ding ding will go on forever!
Was just saying this to my car earlier tonight LOL Lincoln ls 2001 3.9 v8
Excellent video sir, my hat is off to you. You explained everything I needed to know to help me fix my car. Got it running smoothly again. Thank you.
You are the man, I think your videos are the best. Thank You for fixing my car. It took less the 3 hours to fix. Saved >600 Dollors My wife is crying for joy.
Dudes, I wish I have fellas like U in my town. Too many auto repair shops here have really bad reputation for ripping off unwitting people. I've been a victim of such, once or twice; and the more I learn from people like U guys, the clearer I can identify the petty thugs who misrepresent themselves as auto mechanics.
Big thanx to U guys, and the honest ones out there. :)
Absolutely fabulous methodical demonstration on vehicle diagnostics.
Very valuable!!!!
Skip Palinka
That was an awesome teaching! The method of finding out about the misfire is not complicated yet effective.
Thank you so much for sharing this information with us.
God bless you.
That has to be one of the best made how to videos Ive ever watched. Excellent work!
Excellent video. I've always learned that a misfire goes plug->wire->coil->injector->Ignitor->ECU. Odd that a shop would stop after wire.
excellent, I wish all the techs I've had work on my rigs were as thorough at diagnostics instead of seemingly replacing random parts and hoping something works. Thank you and I hope I can find my misfire issue with this information.
Thank you for posting this video, I have a 2005 Nissan Altima 2.5 that gave a P0301. Quick list of work, replaced the; valve cover, gasket, ignition coil, spark plug (which was covered in oil because the valve cover was cracked), ignition coil wire connector, and did the rpm drop test. The drop test showed no difference in power for one and drastic for the rest. Thanks to your video I can now test the injector which should speed along my repair. One of few exceptional videos to help with difficult repairs.
Honestly, you are the man. I've seen some good videos on RUclips by some other good mechanics, but you top them all! Awesome stuff!
Right back to the basics. This was a very good video. I knew all of this but, for those that don't, This was a VERY INFORMATIVE video. Job well done. Thanks
For most folks who lack the equipment used here, try this, It's what mechanics did before computers:
Run engine;
Use well insulated pliers, and remove one plug lead at a time, and listen for the revs to drop or have someone watch the tachometer.
If the revs don't drop at a particular lead (or leads) then that is the bum cylinder/plug/lead. If your ears ain't finely tuned to picking up a misfire, after finding a good cylinder, leave it off as well, adn the misfire on the bad one('s) will be more apparent.
To test injectors, just crack the union on the pipe one by one and note drop in revs -if no drop, it's faulty.
BTW, a spark plug operating outside the engine at room temp and atmospheric pressure is NOT a guarantee that it is working inside the cylinder. It usually is, but it's not definite.
Just swap the plug or injector from the bum cylinder with one from a good cylinder -if the misfire then switches cylinders, you know then it's a bum plug or injector.
Before computers it was simpler, and the cars were much cheaper.
And the diagnosis people were better. Had to be. Like a GPS unit, GREAT tool !! But not like the human brain. What if power goes out in the shop ? What if the screen gets dropped ? Can a car be patched to get home ? Lost skills. I am 70, been working on cars since age 15.
thorough use of equipment to diagnose a misfire
i like the way it was presented to
Grrreat video!!! Clear brief instructive! perfect voice level tone nice personality!!!
Thanks for sharing your knowledge!!!
excellent mechanical teacher...
I love watching a pro work. A union construction worker retired. And it doesn't matter the trade there is something to watch someone is has mattered their craft .
Best test I have seen on you tube, thanks for your honesty. great information.
Now that's a real Technician,My hat is off to you! You just got a subscriber for life 2 thumbs up!
Awesome diagnostics ! Thanks for the heads up. Useful for all injector systems.
This is like going to automotive tech school ...BIG THUMBS UP !!!
that is a great idea! with the pressure gauge hooked up and powering the injector. i love it! gotta love the power probe III too!
most driveabilitry techs are honest and skilled. i noticed he did not inspect the plug(s) at home you can use that as an indicator of rich/lean. when you dont have your harbor freight spark tester, you can ground the threads to the floor panel and crank/start. i would recommend cleaning the causal tank and or both if equipped. or sample/ filter/ refill. clean the injector rail too. replace 6 if dirt found forward of filter
You may have just cleared up the mystery with my 96 Nissan Pathfinder. I'll let you know. Thanks again.
Wow! this was the best informational video I have seen. Very well explained! (I will be going to get me one of those probes as well lol)
Two shops before you never thought of replacing the injector?? wow, that's scary!! excellent video as always.
Great tutorial! You explain the what, when, and why of your diagnosis. Thanks.
This dude is awesome! Keep them videos coming! You the man!!
Oh my god this is amazing, My faith in humanity is restored
This is what differentiates a really good mechanic from some do it your self-er on You Tube. All they want is to look as cool as possible with limited mechanical skills. With my 10years experience on the field, I can spot one who is just bull shit to someone who really knows. Thank You for the videos MR.Realfix
ANNOYING DOOR CHIME, you offered many great points. no need to remove the ignition key... just defeat the door switch with heavy duty duct tape and a quarter piece coin to hold the door switch in place... DEFEATED!
Awesome videos very descriptive easy to follow process of elimination between possible mechanical and electronic issues.
Dear sir absolutely brilliant .just butiful.
Steve from the uk
Very good presentation. You're my official "go to" guy from now on. Thanks.
I'll throw in my hat if it helps. Mine is an 01 Dakota 3.9 V6, 100,000 miles. I had a misfire on 1 and 3, and misfire on multiple cylinders. I changed the throttle position sensor, IAC sensor (I didn't do the MAF sensor yet), crankshaft position sensor, replaced spark plugs, spark plug wires, air filter, checked compression, checked for spark, and anything and everything else I could think of, and everything worked good, and after 2 years it was still no help.What finally fixed it for me was changing the two upper O2 sensors. And I just happened on that by mistake. I had been meaning to change them out just because I knew they were old. The two lower ones were tight, so I never got those off. So I replaced one of the upper ones, and the truck ran 1/2 better. I then replaced the other, and boom, all good. I know everyone is throwing a ton of ideas out there, BUT everyone's ideas are ALL legit. I mean, the whole process from air intake to combustion to exhaust all needs to work right. And if something along the line fails, it can cause a misfire. If you want to try a cheap trick, remove or disconnect the upper O2 sensors and drive it around (This will probably throw an O2 code, but big whoop). If it doesn't misfire, you might have your diagnosis. I figured my O2's were clogged up and thus sending bad info to the computer, which in turn was sending bad info to the other sensors responsible for combustion.
great stuff i dont have all the new tools but u show and explain enough to be able to find the problems. my wifes 08 hyundia accent throws a p0303 witch is #3 misfire. i have been through plugs (new) boots i was suspecting a valve but now i am going to checkinjector #3
God bless the vacuume gauge n the man who knows how to use it.
EXCELLENT WORK SIR YOU TAUGHT ME SOME NEW TECHNIQUES..THANK YOU FOR SHARING
you are a one of the amazing man I know, I thank GOD for making men like you
I wish there were more real people like you , Great job.
By about 2:00 in when you covered a vacuum gauges use that I've never seen before you had me subscribe. Use the vacuum gauge...if it's steady then all of the motor is creating vacuum steadily? Right, don't take the extra time at this point and do a compression test or leak down test. Makes sense.
If you can think of a time where you should do the extra tests anyway, let me know.
Let me review what I learned for my benefit. I knew that a dirty/bad MAF was a common way for Ford's to show a lean code on both banks P0171 and P174, but what I didn't know was that method of checking injectors.
First you confirmed spark. Then you checked the fuel injector wiring harness with a noid light. The ECU was giving the command to fire. You used a power probe to command another injector. It dropped the fuel pressure, while the misfiring cylinder did not.
Thanks again for the video!
DE Nichols cote po193
Great explanation! Gonna try to figure out the misfire on a 2003 Taurus. I need some of those tools! :-)
You got yourself a new subscriber. Great video and great use of tools
Spoken for truth. That's why I'm learning to do my own fixes.
wish my damn misfire / hesitation was constant, would make solving that much easier. Thanks for the good info in diagnosing, clear explanations.
Excellent job. Keep up the great work. Very very informative.
Real professional , man I really wish I could have you tackle my misfire in my neon , it's a big problem
What a meticulous repair, no guessing......
great information, a little loud considering that you do have other vehicles running. I have a 1988 chevy 4x4 with a 350 TBI. I had an exhaust leak on the passenger side on the header. I replaced that. Now I hear and can feel a drag in the power side meaning that I think it may be bad fuel. distributor replaced cause it wasn't keeping time. Plenty of rust and a big chunk of metal was in the cap. but I have popping noises and I have t find a sweet spot to make the truck go.really shook the truck
I had to replace the injectors on a Nissan Maxima. Had to remove the plenum, lower intake manifold which required replacing the gaskets. Finally pulling the injector wasn't so easy without the special tools they have for that. So in a case like this, you want to be DAMN SURE the injector is bad BEFORE you replace it.
The Maxima is a pretty good car. This one has well over 200k on it and it's still going strong.
hello. Thank you for taking the time to make your videos. I have learned much from your videos.
Thanks for the video!! I learned something new before kicking the bucket!!
I've watched so many of your videos & need to say Thank You for keeping it easy & simple on all ur testing methods💪💯💪💯
Yazmin...Venice Beach CA ⛱️ ⛱️ ⛱️
thank you, glad to hear they help
1 for the money good tech.i,m 66 and worked on my own plus dealers. keep up the excellent site. A++++
Great process of elimination, helps to have the tools!!!!! Thanks for the education
Great diagnosis, love that snap on verus!
ya I like it too at 5000 for a used one and 10,000.00 for a new one and having to update it every 3 years at 2500.00 ya. Why don't you buy us all a snap-on computer sounds like you have money
Very good mate pity there werent more people like yourself out there.
Nice video ; I learned something good and variable :)
you're the man!!!
i only wish that GM cars had injectors like Ford and Jeep.. easy to replace.!!....
A timing light can check for misfiring plugs. The light should flash consistently. If it is erratic, it could be the plug or wire or cylinder, or intake gasket, or coil, or module. If the light flutters, it's the module.
Short sweet and to the point Very Nice!!!!
man, i cant stop re-watching ur videos
Well, my Volvo's injectors are connected to a fuel rail which is easily removed with two 10mm bolts. The rail is designed to swing backwards while still connected to the fuel line so swapping an injector takes about five minutes, from popping the hood, to starting the engine. Obviously, on a less well-engineered car, you would find yourself testing them with a multimeter first, then pulling them, cleaning them, replacing, etc...
That's why I buy good cars ;-)
I wish you were my mechanic, not that I could afford you. lol... Well done, Sir!
but can you afford not to have a good mechanic but three bad ones where you waste your money 3 times over what you'd pay him?
i love you simple and easy solutions to everyday problems
( 2001 audi 2.8 ) i got misfires on one bank but not the other side and when i look at the fuel trim was pos on 1 bank but neg on the 2 bank where i me getting the misfire at and i check and replace all air lines and spark pugs and wires
Great Video and is very helpful.
your videos are awesome about some of the best autotech videos on youtube
on the 96 Lesabre, check your oil level
this is the best video very professional
If that's your picture, your beautiful.
Good stuff, You are the best !!!
PS nice Vacuum gauge.
@1PossumJenkins Nope - the cyl is still drawing a vacuum. The rings are still sealing against the walls, the valves are still seating correctly in the seats. Vacuum has nothing to do with spark/ignition or fuel supply outside of timing. If you've got a bad valve or something sideways in the bore (or a bad vac line) - you'll see the bounce.
thanks for pulling the key
Grease Munkee yeah What a noise
Best video of trouble shooting of misfires!
Great video with awesome explanation!
Thank You for the great video and information.
Man, you are AWESOME!!! i like your vids! thank you thank you thank you for posting this stuff!!
thank you for the video and honest input. whish there were more honest and fair mechanics as yourself. high five!!!
This guy is good. Thanks for the info sir.
Well done! Very thorough. Thanks!
Great video he is a good mechanic . But most other mechanics are crooks . They wont stop until your pockets are empty.
There are bad shops out there, no doubt, but there are a lot of good honest, hard working mechanics/technicians as well. I still do a lot of my own work, but I use a local shop sometimes if I have a problem I can't or don't want to work on. These guys are honest and good mechanics. I found them by looking up reviews on their shop. One negative review complained about a car that had an intermittent problem and they couldn't fix his problem so they gave his car back at no charge. I have worked on intermittents in electronics and I know it is hard to fix a problem that ain't there to troubleshoot. So, I thought that sounds like an honest shop to me and I started using them.
so true you have to look at them and most time they try to convince you their guessing is right to try
Question: Could I substitute a 12V power supply instead of purchasing a power probe. I can rig up a supply for the injector test? Also can you use a Fluke meter instead of a NOID light to monitor the computer control signal to the injector??
@1PossumJenkins Vacuum is not created by cylinder firing, just by the movement of the piston assuming valves/rings etc are all ok which can be verified by a compressions test.
great work men my.truck loses power 'll the time hard acceleration pedal I changed spark plugs fuel filter air filter oil change got little better problem still there.don'know what to do no more
Great video. Thanks for sharing.
now if there were just links [to amazon]? for all the various testing tools employed here...
Roger Pack Some folks would disagree with me but, my father introduced me to Harbor Freight a long time ago. Some of their tools should be avoided like the plague but, these simple tools are inexpensive and do the job just fine.
Go to amazon. select automotive, then tools and test equipment, search for Vacuum Gauge, Noid light, code reader. I am hesitant to send you this info, if you couldn't figure this out on your own, doubt you'll be very successful using them but admire you wanting to so go for it.
Nice job, I like your quick overall diagnostic steps. Vacuum, clean the Mass air flow due to potential of causing lean codes, confirmed spark, confirmed computer control of injector and finally fuel pressure drop when injector actually fires.
Question, what type of current pattern would this injector have presented compared to the other good injectors?
Thanks.
That's how it goes when a person real cares about fixing the problem not just trying to take your money
Gostei do que vi, e me deixou muito curioso. mas infelizmente não sei inglês para entender as explicações. Por exemplo na cena em que o especialista usa um Probe conectado a um ponto,e simultaneamente ele usa uma espécie de vacuometro. Porém não se ouve neste momento o som do motor e sim uns apitos e sons de sininho. Não deu pra saber como este teste estava sendo feito. o que estava acionando o vacuometro era uma bomba de vácuo? Parece ser uma ótima aula mas não sei inglês.
MOST EXCELLENT VIDEO!!!
I wish you were my mechanic. I go to Ford by my house and they messed up things on my 01 ford focus. I've had a piston replaced, all 4 valve seats replaced, head at the machine shop, and now latest problem started 7.4.13 at shell gas station by my house, I was about quarter tank before fueling and topped off about 50 cents or less isn't much but when I started my car, started turning over but vibrations and stalls unless i apply foot on gas petal until car fully runs or chokes off.
why would anyone DOWNVOTE this video?
+blainehallmark That does seem amazing, doesn't it?
Yes it does. Unless they are just people that can't comprehend what is being taught
they were the mechanics who previously threw parts at it but never fixed it
blainehallmark because half the video has some kind of background noise that makes it hard and annoying to listen.
O G DOUBLE O TRIPLE O.... HATS OFF TO YOU SIR
@1PossumJenkins vacuum would dip if there was something like an intake valve burnt or not seating. This would bring in pressure, thus causing a drop in vacuum.
@1PossumJenkins it would only effect the vacuum if there was a compression leak. headgasket, rings, bad valve, ect...
amazing explanation!!!!!.I really like it.Thanks.
Thanks for the video also for jay igaboo advice.
thank,s for the tip on the vacuum ,