Ford F-150 5.0 - Rough Running / Slams Into Gear
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- Опубликовано: 24 июн 2017
- Come along with Eric O. at the SMA shop as he has a look at this poor running 1992 Ford F-150 5.0 4x4. The customer has a complaint of harsh shifting, poor idle performance, no fast idle and sudden engine "flare ups." Having dealt with these older Fords's in the past it does not take long to track down a faulty MAP sensor and get it repaired.
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--Eric O.
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Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of South Main Auto Repair, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not South Main Auto Repair. 
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The paint job on that thing looks awesome. The owner really loves this truck.
I love this truck with him. Makes me happy to see that he's keeping it going.
I think its factory. The Flare Side F-150s has some... pizzaz if you will
lexustech48 the grill paint isn’t factory, I think it’s probably repainted, I don’t recall ever seeing one in that color, and it doesn’t look like a factory paint job under the hood.
@@lexustech48 You can see a visible paint overspray line near the top of the firewall....definitely a repaint.
I don't think any intake (upper) plenums were factory painted on the trucks. They were always the natural color from casting.
My check engine light came on. I opened the hood and Sure Enough, the engine was still there! Problem solved!
Robby Jones 😂😂😂
Ur a genius
@@johnogara3029 he's just a dumbass who knows nothing about cars
@@jamesshaw4954 no he's a smart ass with sense of humour
you got lucky!
This guy is extremely patient and eager to complete a repair. He gets a thrill from it. I wish I had his confidence. I get too aggravated at these electronic controlled vehicles.
The electronics just moniter the systems. So the mechanical is most important but the electronics play a part. 😂
Absolutely amazing quick and to the point video! I love doing drivability work like this and because this truck is before my time I learned something new! Keep up the good work there Dr. O.
FordTechMakuloco Too bad you never had the opportunity to work with an SBDS diagnostic machine, it was a great tool once you got used to it and very advanced for its time. It was capable of a lot of in depth testing and scope work, the guys who understood electrical could work magic with it, although honestly most guys wouldn't take the time.
Wait a minute... before your time!? Dude I am not that old and I remember working on these old square body's. You certainly must have worked on these at some point. Some of the best Ford's on ever built IMO and I am not a Ford guy :)
I don't consider being older just more experienced on older vehicles. 30-60's were before my time but I can work on them all...more experienced than the younger whipper snappers :D
James Zivny We still had one at he dealer I worked at but it was buried in the back of the tool shed so I never got around to pulling it out. I did look it over and it was an amazing piece of equipment that's for sure. Of course our was like new.
South Main Auto Repair Well I started at the Ford Dealer in 2005 so these weren't an everyday occurrence. We did see more of them than you would think at a dealer though. I've have had my fair share of experience on these but nowhere near the amount of OBD II drivability I have done.
May be a old Ford truck , however, it's still on the road compared to many of the 5 year old junks they make today.
I have a 97 f150, would it be a terrible idea to buy a 2014ish model? I'm more of a toyota person so a tundra would be the smarter choice, I just love ford trucks for some reason.
I traded in my 95 F150 that had a straight 6 300 when it had 383,000 miles on it for my 03 F150 off the show room floor. The 03 currently has over 295,000 miles on it.
@@blmdh20s damn. You put them through the ringer for sure. I am on my second f150, a 93 xl 4x4. My brother has a 98 4x4 and we shared a 01 xl work truck and they all have been great. I'd still have the 01 if the trans didn't die on top of having 300,000 miles and was beat tf up
Helps to know how a sensor should act and what it’s normal parameters are. You’ve been around it a lot Eric. That’s what makes you that guy. Nice work
Thanks for this video. I went to my friend's house and told him. 2hrs later he was driving his truck again with a big smile.
Best body style they ever discontinued
Would have been a great truck if they hadn’t had to choke them out with all the emissions crap
@@eizzle78 Blah Blah Blah. It was a necessary evil. We've got 400hp 4 cylinder engines now. 800hp 8 cylinders. Yeah, the malaise era was rough, but don't be so myopic. We came out very much better for it.
Always wanted one of these. My parents neighbor has the extended cab long bed 7.3. It’s been stolen and recovered and he still has it today.
@@eizzle78 you can remove all that junk, I did on mine
SocksOnFeet I got rid of that truck years ago, it was apparently built on a Friday during a training session 🤣
Love these Ford trucks from the late 80s and early 90s. Those 302 and 351 motors were strong as hell and almost impossible to blow up. Easy to work on, rarely had problems. Sure, you might have to replace the TFI module or a MAP sensor once in a while, but compared to today's cars I would much rather have one of these older "square body" trucks
Your local competition shops need to start watching your channel
!! Or Not ...!
Lol I hope not, they keep me in business!
Just remember Denny's rule Eric. If another shop has worked on it the hourly rate doubles.
There aren't many shops that find truly being a mechanic worthwhile anymore. If the car doesn't scream exactly what it is, they'd rather send it elsewhere and get on with their oil changes than take the time to truly diagnose it.
@@TheWittyGeek yeah and not too many want to do head gasket jobs either
Wanted to thank you guys since my mechanic spent a couple hours labor on my 92 with no results. $20.00 part just installed myself in under 3 minutes. Didn't bother un bolting old one just zip tied to it! Runs way way better. Starts without using gas pedal anymore. So grateful
Zip tie is the way to go...makes it easier to replace in the future.
You nailed it just based on the symptoms. Amazing how clean that old truck was even on the inside compared to the some of the newere vehicles you worked on that weren't worth the cost of repair. Then again, I'm a sucker for old cars and motorcycles, if they could talk I bet they'd have some stories to tell.
man another one of those good old f150's!
Seriously good work. I worked on too many FORD quirks with my dad as a kid to feel the same love for them that some here do. There is simply no justification for placing a water sensitive component where they put it without any protection.
Love your videos. I am a mechanic in buffalo new York, working on floor machines street sweepers, zambonies ect on the road mechanic. I must say you're a master in the industry and you've helped me learn more as well.
thank you for silicone the part. I was yelling to do it from Texas. Take care Eric.
I heard ya
Odd that Ford oriented the seam straight up on that little box. Needs a little tin or plastic deflector to serve as a rain gutter.
No, I think that was me you heard way over in South Africa.... Exactly the thing I would have done. (Part of repairing is to do your best to prevent a recurrence of the same fault...)
Silicon-carne saves the day. “The bigger the gob, the better the job!”
Wonder if the Motorcraft version had the same seam. Sometimes aftermarket is a little different, and Mr. O did say it was identical to what he got.
Nice job. Here's another water issue you may have run into. Bought a 92 F150 for hauling firewood. And after a while became aware of a potential electrical issue when I noticed that when the headlights were on cruise would not work. Became more greatly aware of a probable issue when I turned the left turn signal on and started a left turn but the vehicle behind me proceeded to pass on that side. WTH?
Checked the rear turn signals and when the headlights were off the rear turn signals worked fine but when the headlights were on they did not at all. Front worked fine either way. My immediate response was to install an independent rear turn signal system complete with separate lights. And to check good old RUclips for insight.
Turns out that when there is a water leak in the windshield on these vehicles the water drains under the dash and ends of up in an electrical junction box of some kind. Tested and discovered, yes indeed, the windshield was leaking. Fixed that with silicone and no problems afterward.
Fords.
Great information for a lot of Ford owners. Eric is a very talented mechanic. Thanks for these highly educational videos. I have never met a mechanic in our area with his skill level. Even going to the dealership here usually requires at least three trips to get a repair completed.
My 92 4.9L 5spd takes several attempts to get started. I'm playing with the gas pedal the entire time to keep it running!
Come on Eric, put a little realness in it - drop one of the screws and spend an hour looking for it! Lol
I've lost and found a few 10mil wrenches and sockets like that, lol
Speaking of lost tools, parts... Years ago ohauling the carb on an early Audi, lost one of the fuel check valve balls. Found it hours later...rolled down the driveway into the front yard grass!! Not long ago ohauling Mikuni motorycycle carb, the float bowl spring fell out, bounced off my right shoe. Spent hours scouring the floor, never found it, ordered one online. Two years later I found it. It bounced off of my shoe UP and INTO one of the locking dog holes in my big wood working bench!!!
I have a co-worker having similar issues with his truck. I am sharing this Monday morning to help out. Thanks for another A + SMA production.
Mr. Nobody Also a bad map sensor will cause a no start as well.
tell your co-worker i'll fix't for you and be like a hiro
Greg Feeney - his truck has poor idle and harsh shifting it turns over fine but runs like crap.
You and I are on the same page
Yes sir Mr.No, it is time for you to shine, go grab your meter and be a hero :D
Nice diagnosis and solid fix. That hood seal is bent so if he changes it problem solve but you took care of the water intrusion...SORTED. Trucks in great shape.
Another interesting video. You made it look easy, while another shop couldn't figure it out. Thanks for sharing.
I found your videos when I was looking for help with my 91 f 150 4.9 liter.great videos. Totally addictive.
No substitute for experience, and YOU have that!!! No better way to start a Sunday morning than with a SMA video!! Thanks for the hours of learning while being entertained.
It was a high performance water cooled map sensor....
The problem is worse.... when he hook up the Signal Return clip the phone rang .
@@garywood9525 funny
MAF (mass air flow) sensor.
@@jdrs4214 no it has a MAP sensor not a MAF
The EEC-IV was a pretty good and advanced system in its day. I applaud the fact that you went out of your way to seal the new MAP sensor for your customer however I was 'yelling at the screen' for you to install and test the sensor 'as is' first to be certain it worked prior to sealing it as once you modded it you would not be able to return it if it lived up to its name and was NG. Perhaps you did this off camera.
God bless
Paul
Well done Eric. Can't say I see too many 92 F150 around any more. Cheers
I wish I saw this video 2 years ago! My 1993 f150 4.9L has been sitting for about that long due to ALL the symptoms you metioned in this video. Mainly the transmission hard shifting, late shifing and early shifting. I have changed the transmission 2 times, checked all the wires for continuity, changed speed sensor, tps AND an ECU , even a solenoid in the dash panel! I have just purchased the MAP sensor this evening and I'll change it out in the morning and give you an update.🤞😬
@@DanielSanchez-yn4lp so what is the update? Did it work out?
@@begin2advance_painting no luck.🙄I'm still in the same situation.
Guess it's time for me to upgrade my trusty 18 year old Blue Point multimeter I got from my MMI days in Phoenix. Need that Hz function!!
About 7 years ago, I wasn't really sure what the MAP sensor even did on my '86 Grand Marquis (same location as this one, except it's mounted flat against the firewall). Well, I gave myself a good lesson in that when I broke the plastic nipple off the bottom of the sensor while trying to remove the hose, lol. Car ran PIG RICH at idle - burning eyes, black smoke rich! What a mess. That was an AHA moment for me. This vid here was another AHA moment - frequency is very important!
Thanks for the lesson!
it never seems to amaze me how many vehicles come into Eric O.'s shop from OTHER facilities that cant even diagnosis an OBD I truck? I own alot of pre 1996 cars because they are so much easier to work on with much fewer sensors. Less to break and easier to fix.
An instructor told me "If you understand the 'Theory of Operation' of the system you're working on, the solution will present itself easily." Not sure if he ever worked on a '92 Ford, but you proved him right. Again. Thanks for the video, Mr. O. And bring back Mrs. O! ;)
Antique Sunday with Eric O! There have been a few classics featured recently. It's always great to jump back in the time machine.
fantastic work, was thinking the same thing with the rtv. love how you always go above and beyond.
Eric O = Jedi of the lab scopes
Snap on Vantage = lightsaber of auto diagnostics
Snap-On is just a pocket knife, PICO is the Saber
thank you eric for all your videos and what you and your educational instruction does for the RUclips crowd.
Thanks for sharing.. Was ready to pull the fuel pumps.. The 20 dollar instead of the 2000 dollar problem. Water in my map as well...
That is a SWEET paint matched intake on that 5.OH!
Great video. Shows the need for knowledge of what tool to use and how to use it. There is no substitute for experience.
You're an ace. Thanks so much for your dedication to selfless repair advice.
Nice to see an honest mechanic. Great video.
Eric, that was a fantastic demo of when a regular voltmeter just doesn't cut it...the average voltage never changes!
Pine Hollow Auto Diagnostics hey aren't you charging money for videos. wahhh I'm so offended by this that I'm gonna go and hide in my mamas basement. just kidding I love your videos Ivan Eric is good to
a voltmeter would cut it there as long as it has frequency measurements and you have a mityvac. Thats what i used on my '95
Don't worry Jay, I paid him twice his going rate just to comment..$1.98... Haha thanks Ivan and yes I thought that this was the best part of the video. I actually have another demonstration of this coming up in an other video. Some time the average voltage reading don't mean squat!
side note I think this is what's going on with my ford 460. its a 94 e250 van
This guy is a thorough mechanic for sure. Always appreciate his diagnostic skill set 👌
Always trust your gut. I do the same thing working in ems. If you have seen the exact same symptoms 1000 times before and your gut says this is what it is then there you go. Great job Eric.
I love this kind of truck!! My dad has a 1995 Ford f-150 XL 5 speed manual and 4.9 straight line in6 and still running now!!
Add this video to the saved my ass list. Thank you for putting these things out there since it's difficult to find anything out of the Haynes or Chilton.
Good guy Eric, seals the MAP-sensor for you.
Absolutely great video, I just picked up a 1993 F150 OBS and have had several issues related to Vacuum, EGR, Act and this really helped. Thank You.
Hi Eric just started watching your channel great videos I like the way you don’t shy away from the hard to diagnose repairs but I get the feeling there hard for your average mechanic like me you seem to be a awesome one love learning how you go about solving problems real interesting thanks for taking the time Jeff
Eric O., you're awesome.
Eric thanks for another great video, if you stopped making them, don't think I would have you tube on. when I saw the new map sensor, I was saying to put some type of sealant on it. Keep up the good work and more shops will be bringing more of their unfixable problems, A big hello from Newfoundland, Canada.
Good info. I have a 91 F-150 and it has idle surge at various times. Small item to replace, worth a shot
I'm from Belize in Central America love your channels and most of all your videos, they take the guessing out of auto mechanics
"Give it a toot around town" lmao I love your terminology!
It was a thumbs up! Thank you for your time helping us understand what's going on. I lack confidence when it comes to understanding what I'm looking at. That will improve with time so thanks for the help.
wyattoneable Don't ever feel like vehicles are too complicated or hi-tech to work on, get a Haynes book(or another) on computer controls and read, get a good multimeter and test light and check your own vehicle's parts and systems just to practice. Some tests require expensive scopes ect but most repairs can be done with a little patience, Google and assorted tools. Good luck
James Zivny I hear you James. I'm a year into this hobby. I have Paul Danners book and read other references as well. RUclips channels and books are great but until I get experience I will be unsure of myself. I don't want to fry computers! 😊
James hits it right on, test known goods and learn from that. People make big mistakes trying to learn when it is all ready broke. That is harder to do IMO.
How about on a 1994 can u check it with a volt ohm meter
Thank you for this. I am not a mechanic but I like fixing my own problems.
The symptoms you described were exactly what I was experiencing.
One 7mm wrench and a new part ($50) made my truck run better than before.
Appreciate your video! I was having the same problem and changed the MAP and it runs like a dream!!!! Thank you.
Thats a nice looking truck!
I thought so myself :D
wow u solved the problem in such a short time I love when u get problems that other shops couldn't handle you are a very good at what you do love this channel that's why I drive around with my SMA sticker on my truck with pride.
I always learn something with every video. Thanks Eric.
That there is proof of a very good and experienced technician. Well done Mr. O!
Thank you so much for sharing this repair with us. This is a first time I see digital MAP sensor. Cheers.
Oh cool :D
Cool video brother keep up the good work and as always keep the videos coming 👍🏼👍🏼👍🏼✌️
Your videos always come up but from years ago. I always watch them because I'm usually very impressed with the quality of work. I figure now if Eric O. Talks people should listen. Lol I will be sure to send you a good Christmas gift this year.
I’m glad you had your old diagnostic tools. It’s amazing today with all the engine processing going today that have to work in perfect harmony , that cars even run. Good job. Now your an old buck!
The other shops in the area are either dumb or just lazy.......and Mr. O has gained another customer
for life.
g2macs I was thinking the same thing
I don't know. Is the customer aware that the original shop couldn't fix it and they sent it to SMA, or do they hide that fact, get the truck back, and pretend they fixed it???
Don't know mate, but he's had quite a few customers come in from other shops
who have failed to diagnose problems. I was assuming that they
were 'old school' shop and didn't have the expertise to fix this particular issue but...
this van is quite old and any competent shop should be able to fix the fault.
(I have to admit I'm a bit of an Eric O fanboy...even though I'm 52!)
Well old school shops in this state will burn out fast because this is about as old school as we get around here and these are far and few between. You either have to s&*t or get off the pot I always say haha. Try to stay current and educated or this business will swallow you whole.
Very true like the old understand the new!
When you you get these gorgeous oldies why not take us with you for a toot around town? Great fix and a great teaching style! Thanx Dr. O.
You use all you time wisely and informative, delivered with courtesy, good content.. I would have been fooled by the signal wire too with out checking. Thanks for the lesson..
Great example of why you're paid for you experience. A shop was dumbfounded on an old truck and without even looking at it you had the answer, and this extremely valuable info is now free to the public
Home run Eric. Good job. Good info.
Nice, experience has its assets and then the water in the map sensor was a bit of a clue as to what was wrong. Very nice touch sealing that to help give it a nice long life. Oh yeah, we're in NY, lol. Thanks for sharing.
Great video and after a million times of asking i finally found it thx to u
Nice video. Made me miss working on my 92 f150. 275,000 miles when she died. Still miss that old rust bucket
that was a lovely aftermarket combo MAP sensor/rain gauge :))
I bet the original was replaced willy-nilly parts swapper-style and probably worked fine >_>
I also worked on a lot of those trucks. Oddly i don't remember replacing many MAP sensors. We used to stock TP sensors for them however. Repair well done, Eric.
Yes sir, that would have been my next test point, very very common on those
@@SouthMainAuto At least the stuff that does tend to go wrong on these is very easy to replace.
What are the symptoms of a bad tps? My 7.5 used to smoke the tires off now it won't even spin them on wet asphalt I'm about to carb swap this junk efi
@@RollingThunder85 Maybe a partially plugged Cat converter. Some Ford pickups and vans ate converters.
@@wysetech2000 I don't have a cat converter anymore I ran a fuel pressure test my rear tank has 29psi front tank has 12psi
Beautiful old truck. Very enjoyable video. Thanks!
I really want a Vantage Pro. Nice video Eric as usual. Keep em coming!
“The money light” haha never heard that one
Eric uses "money light" all the time. That's what I call it now.
no fair it just alerted me >.
My old 86 Ford F-150 has the EEC-IV computer system but it's got a feed back carb when I bought it new I went ahead and ordered a shop manual for the 86 year model Fords I'm glad I did cause it help me understand that operating system. Great video as always 👍👍👍👍👍👍👍👍
bravo E.O, always looking forward to your videos. unfortunately I have to turn my ringer off at night so I can get some sleep. 5 am California time and saw the notification and I was all over it. cheers Eric
Lol "B-W-D you know what that means.......... broke when delivered" Hahaha hahaha
Great vid! You always teach me something! !Hi all just an FYI went thru a high idle issue on my 1999 ford f150---smoked it for vac leaks(yes, i made my own smoker lol) cleaned throttle body and Idle control valve--cleared computer and tried to let it find it's new base idle---no help--grrrr finally i remembered to clean (I mean really clean!!) the pcv valve--Freaking truck calmed down and is purring like a kitty!! PCV valve was sticking!! Hope this helps all!!
Experience is everything. I wrote the numbers down so I can check mine. Great video
"...this time we won." Dude, you always win! Thanks Dr. O!
Not always :D
Love when you do some OBS ford trucks as I own two of them
Nice looking stepside.
Another great video Eric! I love your video about the dreaded deep reach ford spark plugs!
I know this is probably not covered in automotive manuals but the signal was at a constant "high." The signal is what is called modified from pulse. So a multi-meter will show it at the maximum voltage regardless of the frequency whether it is having problems or not. A scope will show no pulse width modulation though. This video is very informative.
Nice, I have 94 ford sport van same engine if those symptoms ever occur I'll know what to look for... Thank's
Since we didn't see it run first, In my best Tom Magliozzi voice, "So tell us what sound it was making? Was it a 'bbrrum bbrrm brrrrrumm..' or a 'nnnuh nuuh nuuuuh'?????"
Michael Shuler Years ago when I first worked as a service writer we loved asking the customers to describe the noises they heard, some people became very animated, it was hilarious.
Women I find are the best at making the noises, while men come in just try to tell you what it sounds like...
You nailed it. The hood seal is allowing water to drip on it. I silicone mine as well. I have learned the the oem part from ford works much better than what parts stores carry. Well done
I had one just like that, except with the 351W. Nice to see there are a few on the road that aren't rotted out.
Well, now you've gone an buggered up the *MAP Fluid Level Indicator Thingy*. It'll never run the *same* again.
The MAP SENSOR aquarium...
I don't think the owner wants it to run the same again. That's why it was there to start with
Your one smart cookie Eric
james dickson but YOU'RE not.
Old Jamie Dixon. Still trolling the internet
You might have just saved me from buying a new transmission. Thank you!
I love drivability too. The challenge. I followed and agreed with everything. Good video.
Great diagnosis Eric. Don't know how you find the time to bring us these videos considering how slammed your shop is and running your own business and with a young family. Do you ever sleep?
Sleep is for the weak
You can tell by the tabs that the Map is mounted upside down that's why the water got in.
I agree
@@lenstar01 yes i agree he made the same mistake the previous repairman made. at least he tried to seal it
If it was upside down, the vacuum line wouldn't reach.
Thanks for telling us what to do when that starts happening to our last century F-150s.
Wow, I have a 93 F150 and it's known as "the rolling turd." The paint is all but gone on it (still runs great). That 92 looks amazing (though I suspect it was repainted).