EBAY Parts Caused Ford Truck IDLE Problem? ('92 F150)
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- Опубліковано 5 вер 2024
- This 1992 Ford F150 V8 had a used EBay Throttle Body installed due to a rusted coolant line.
Now the truck is refusing to idle, and sets a code for the TPS sensor.
The shop played some swaptronics, and is giving up on the old Ford.
Can we fix it NO PARTS REQUIRED?
ASTRO AI DC AMP CLAMP:
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Enjoy!
Ivan
WOW WHEN YOU SAID VINTAGE,I REALIZED 37 YEARS OF KNOWLEDGE AS A TECH WENT OUT THE DOOR.BLESS YOUR HEART IN YOUR FUTURE
I actually WROTE some of the software in that engine control module. Idle TPS setting is not critical (the spec said 0.7v-0.8v but the old one was 1.1v). Software re-learns Closed Throttle every time you cycle the key.
Interesting. The 0.7 V spec seems to be right on the $! Old throttle body linkage was tweaked by the tech so plates wouldn't close to the original position lol
i got mine at .89 or somethin. i didn't know it learned that often though. I swapped the instrument cluster minus odo into my 94 so i could have a tach. The CEL doesn't work now and it's not a socket corrosion or bulb. I guess i have to pull the layers of pcb papers on the cluster and look for a burnt trace....jeez
That Ford IAC system is so goofy. If I remember right the throttle stop screw isn't even supposed to adjust the idle, it just makes it so the throttle blades don't stick closed. The hole in the throttle plate actually sets the idle. Ford sold bushing kits to change the size of the holes to fine tune the idle. The IAC is just there to raise the idle if you have a load like air conditioning or power steering at idle. 🤷
You are correct. The set screw that everyone dicked with was the “hard stop” to keep the plates from sticking. The hole was a calibrated size for air bypass. A quick trick to set base idle was to disconnect the IAC and the engine should just barely idle. With the IAC plugged in, it should run between 25-40% at idle, depending on load. If it’s really low, that’s usually a sign of an
Intake leak.
Ya its a slightly ass backwards and unforgettable system.
Yup and they tell you not to wipe the bores because it will remove some magic coating 😂
So now that I better understand the IAC in my Crown Vic.... (If I ever get it going again)
@@PineHollowAutoDiagnostics I always used a clean rag and some carb cleaner anyway. A gunked up throttle body will cause many idle problem all on its own
I actually still have 2 early obd cars and I actually like the old paper clip diagnostic method... mostly because 99% of the time the code pretty much tells you what's actually wrong with the car rather than leading you on a chicken chase through the various systems and sensors. One of our cars blinked out a message recently that said EGR valve malfunction... and amazingly enough when I tested the EGR diaphragm it was blown....The old OBD systems didn't throw a lot of codes, but when they did they usually gave you useful information and all you needed was a paper clip to read the codes. I know I'm getting old because I remember hating on board computers when they first came out and now I look back on them *almost* fondly.... how sad.
Anyone that wants to learn about a three wire sensor with a 5 volt reference should watch this video. Just an excellent diagnosis! This is by far my favorite channel on UA-cam. Is there anyway to get a Pine Hollow T-shirt?
I'll try to get some swag online before the holiday season 😁
Ahhhhh, Ford EEC IV, I miss the days of counting the light flashes to get the codes.....
I started working on cars in the 60s, Tune ups with points and condensers, specific tools for specific carburetors. It was pretty cool to see the technology change all the way up to todays computer engine management. I stayed up to date and found it really isn't that hard to properly diagnose a problem the first time. I have been retired 6 years and enjoy watching these diagnostic videos.
What impresses me the most is the HP they can get out of small engines. 6500 rpm redlines on most cars is pretty impressive considering anything over 5000 rpm was pushing it back in the old days.
OBD 1.. When you really wanna teach someone how spoiled we are now. But the basics are there and with service data, and an old school red brick, you'll learn alot. There is limited live data on there. These old systems don't have redundant systems, so when 1 major sensor fails, it has no idea what to do.
I have a songsmith friend (50yrs) from up north, a humble down to earth honest no frills master of His craft and appreciative fella. Often at the end of one of his songs he will glance out and do a sort of “thank you” thumbs up to the audience. Sometimes I just leave Ivan with a👍
And a couple 😃😃
Great review Ivan. Keep the old ones alive !
OBD1 vehicles also don't have issues like the new vehicles do. Recently had an '89 GMC V1500 Suburban with high idle issues when cold to warm, idle wouldn't reduce fully on its own. Once at operating temperature, the only way to get the idle down was to put it in drive with the brake on and within 20 seconds the idle would slowly come down to spec. Plugged in the Snap-on brick and of course, little help from that. Had to revert to prior to OBD1 methods or fire the parts canon. No vacuum leaks so it had to be a sensor related issue. The Vehicle had a Standard Motor Products IAC installed so that was a suspect. Ended up replacing the IAC with an ACDelco IAC, not easy to find by the way, and now the idle curves work normal from cold to operating temperature. During our diag, we measured the TPS and it was within range but my mechanic friend wanted to lower the idle number to .07 from 1.0 which was within spec range as it was. Idle is now super smooth. IAC's apparently have to be dead on perfect and from our experience, you need the factory part vs. aftermarket regardless of their reputation. My guess is when the Delco brand is not available your best options are to use Delphi or Borg Warner since they used to or still do make GM parts.
That shop could have avoided a lot of issues by using a pipe tap on where the fitting rusted out and just screwed in a new fitting.
or just looped the coolant hose back upon itself bypassing the throttle body.
That's exactly what I told them 🤣
@@mph5896 until it iced up in winter!
YOU guys are missing the shops main point>TO MAKE PROFIT< how much more money did they make buy selling the guy a new throttle body 200 ???And on the legal side of it ,that's a legit charge,because a rusted out pipe IS PART of the body.IF they would have REMOVED that pipe and did a repair THEY would then be liable if the car overheated or had ANY cooling issues and blew the motor.LET'S say the owner was smart enough and crooked and PULLED the pipe off,AND CLAIMED THEIR repair FAILED.SMALL CLAIMS court says they would owe him a motor.I KNOW that"s BS but it could happen ,just saying.I"M just saying the shop was TRYING to cover their ass,maybe.great job as always IVAN>
@@robertoruiz7069 That's why I enjoy Ivan's repairs. NPR. If you don't understand the problem you can't fix it. I think it's more about time vs reward. It just takes so long to figure out how something has failed. It's more cost effective to replace the suspect components, plus the markup on parts. Around here most places work too cheap and make it up on parts.
These trucks 87-96 were the glory years for the trucks the speed density EFI 300/302/351W/460 though primitive was simple to fix and parts were cheap. If you had a multi meter and basic hand tools and a haynes/chiltons manual you could diagnose a lot of common issues. Pretty appalling when a shop has to resort to swapping parts to find an issue and threw in the towel for a BASIC repair. Just because it didn't have an OBD2 port and it was an older vehicle. I'll never get rid of my 1990 any time soon. I have to say lots of aftermarket electronics and sensors lately are just plain junk out of the box so I try to stick to OE parts like sensors, fuel pumps, tfi modules, PIP sensors etc. but again dead simple, yeah it's not a modern system for EFI but if you understand the basics and can read and use a multi meter, your save yourself a shit ton of cash.
Is your 90 a Ford ? I'm getting a lot of fuel consumption, after I did a tune up and I had replaced other parts earlier before the plugs and wires and it stinks, but immediately after replacing them the problem started.
Nice diagnosis, a friend has a nineties Ford PU bought from widow sitting in garage for years. He had to replace that also. Took him awhile to diagnose that!!
This brought back fond memories of working on cars and trucks many moons ago .
I think the same thing. Remember when we fumbled through learning on the fly like him? I was surprised how many specs came back to my mind. I miss the late 80s & 90s for the tuning cars needed.
Ya, nice looking truck with the red/black combination.
Just keep the tp sensor voltage below 1.0 volt. 1.0 and higher will turn on the evap purge. Changing older tp sensors with new OEM sensor helped to make a more crisp throttle response. Kind of like changing the accelerator pump plunger assembly on a carburetor.
We need a Ivan,Wes and Eric o.collaboration
You can get live data with a cheap OTC scan tool. I bought one specifically for this - OTC 3211. Worked great on the 1993 F150 I had to troubleshoot for similar problems.
Really? Interesting... Maybe 92 was too old lol
So the old Ford lives to die another day. Great job Ivan. Thanks for Sharing!
Don’t we all, don’t we all…
I imagine there is a place for people to specialize in OBD I as a side line. Much better to fix it vs a toggle switch!
Ivan,
Great video and fix - thank you! Codes 23 and 53 were set because the TPS was not reading between 0.5 and 1.2 VDC at idle.
I have an early Fox with a SEFI 5.0L EEC-IV. When Ford came out with the EEC-IV in the early/mid-1980s it was very advanced for its time.
Paul (in MA)
Just out a toggle switch; the ol’ Scotty Kilmer trick
I'm surprised that you got it to work right with obd1 issues haha. Thought they were gone already. Nice fix!!! Many thumbs up
Cool , Old School OBD 1 , came a long way , Wait till we see OBD III !
Another pesky sensor issue fixed by Ivan. Well done as always.
Great video. That old Ford 302 will go forever.
This truck has a 5.0 V8. It'll still go forever though.
@@jonclark1288 yep sure is.
It sounds like you fixed the original problem also!
It is good that you are patient
Nice diagnosis and it looks like the Verus seems to do well with the OBD 1 vehicles.
Yeah, it’s not bad for a $10,000 scanner. ;)
@@JimmyMakingitwork you can get a nice used one for under 2k today lol
Swaptronics ha ha :-D
The original tps potentiometer likely needed a spray of pot cleaner so the computer didnt panic lol.
Nice, good old truck squared away
These things eat IAC’s, TPS and EGR sensors. They also won’t control the IAC if the TPS isn’t at idle voltage.
I still have a half dozen thick film ignition boxes if you need one, lol.
That appears to have been a self inflicted failure caused by the mechanic that installed the new part.
It's all relative. I was born in 1957 so a 1992 doesn't seem that old to me. (ha ha) I'm having similar issues with my 1987 Jeep so this is a good refresher of some troubleshooting tips. Do you miss going to Staten Island?
Good job! Nice to see a vintage vehicle that is well maintained still on the road. I bet a vehicle like that is a rarity in your area.
I did an motor change several years ago and the customer wanted to change all the sensors at the same time. Dang thing would not run when I got done and traced it back to a bad new TPS sensor. Threw the old one on it and it fired right up.
The aftermarket TPS sensors for old Fords like this one are GARBAGE! If the vehicle starts n' stalls, randomly stalls when the throttle is released, or falls on it's face when you get on it, a junk China TPS should be your #1 suspect. An old analog multimeter makes short work of diagnosing them.
Ivan fixed it again. Kudos for you.
I think it all depends what brand you are working with when it comes to Diag on OBD1 but yes OBd 2 is so much better information wise thanks Ivan
Great diagnosis again Ivan! Cheers!
Thanks Aldrin!
once a guy figured the koer and koeo self tests there was only a couple of other checks to do. ford had it right while all the other obd1 manufacturers were a headache. dont even think about chryslers lean burn system. once they screwed up just run them off a cliff.
GM had live data since 1984!
Good job Iven
On EEC-IV, I believe that live data is available if the EEC uses 3-digit codes. I know that the 91 Ford Escort and the 95 Ford Contour support live data.
I still look after a 92 f150 that has live data. I believe a 1990 Lincoln continental also had live data but that was a long time ago.
My 86 Ford with EEC IV doesn't have live data that I can find.
@@gregwhite5058 I think the oldest EEC-IV that supports live data is 1990 or 1991.
С одной стороны, со старыми автомобилями дело иметь легко. А с другой стороны - тяжело...
I'd honestly rather work on this than say a 2012 F150 and a bunch of network issues, lol.
The. MAP sensor can also be a culprit with idle. I had a 93 E150 that had a bad TPS and MAP at the same time. Took some time to get it all found, all I had was the CEL flashes to go off of.
Amazing that when items are put into factory specifications , THEY WORK! Step ONE : know HOW the system you are working on operates ! Instead of reinventing the wheel , FIX the bad spot . " Houston , I think we have a software problem , booster rockets will not fire " . Rube Goldberg : nobody knows HOW that computer stuff works , put a TOGGLE SWITCH on the computer ! HOW do you fix it if you don't KNOW HOW it operates ? Great detective work with the bent part , bad wire and diagnosis .
Ivan, Did you ever get your live data to work.? Rather odd that you didn't otherwise. They didn't give you lots of PIDs but enough to help out with certain things..especially giving you your tps and the iac %
Couldn't even begin to tell you how many of those bent throttle stops I've seen. I think that's the LazyAss throttle adjustment some will do. Lol😂
Nice job ivan. I remember the eeciv
I worked on a 89 f150 with a 302 that was a crank no start and when I unplugged tps the engine started and ran good so I left it unplugged and never replaced it because the guy that owned it used it to haul garbage in the campground he owned and it never seen the road. I couldn't believe how well the truck ran without the tps unplugged but transmission shifted ok and he never had a problem with the truck for the 10 years he owned it.
Seen a lot of map sensor failures on them
My favorite 80's and 90's rwd volvos just had a clicky microswitch as the tps... It clicked on by a closed throttle and idle control was activated. 0 fuel responsibility.
The slightly more advanced systems like this one use voltage to activate idle, i can't imagine it's too responsible for fueling, probably tip in enrichment and that's about it.
No live data, but the old EEC-IV system was almost unstoppable.
Sweet classic diag. Thanks Ivan!
Dave Jones would say "None of that OBDII rubbish"
You think the Snap on is your only scanner than can comm. with that older Ford? Did you try any of your other scanners! Just curious. Great vidya as always Ivan!
Great work as usual ivan✌
Overdrive switch is on the end of the shifter handle.
It wasn't there 😂
FORD forgot it during production.
OD switch was for the electronic overdrive transmissions, this truck has an AOD non electronic OD trans. which was available up till 1993.
@@mplante7352 Yep, 4R70W & the E4OD on F250-F350 1994 and later
Very interesting case study. Geat vid thanks for sharing.
Ivan, You know what Ford stands for don't ya? Just expect every problem! Oh and FIRST!
I’ve had all brands…they work fine all of them if you stay after them with good maintenance.
@@jonnycando My wife and I had a 97 Taurus...NO AMOUNT OF MAINTENENCE could over come the shit Ford builds. I have personal experience.
@@mikefoehr235 certain taurii were scandalous in their lack of durability but even they could be egged on…
@@jonnycando our Taurus was egged on with 2 engines, 3 transmissions and a Costco cart of other parts. That one Ford and the 💩 that GM sold me sealed the deal to Toyota. Some on YT have told me to give FORD and GM a second chance. Well, why on gods earth would I want to subsidize a sewage treatment plant. How is it that Toyota has built us FOUR stellar vehicles.....serendipity...no fn way. I thank Toyota for being my savior. Mostly just maintenence. The brand is in another realm.
@@mikefoehr235 well I’ve got a new Mazda as daily driver and 250000 mile k1500 and 230000 mile Explorer…all running perfect but the Explorer occasionally wanting extra care…if there’s any identifiable shortcomings in American brands it’s the shareholders fault as they all are capable of competitive quality vehicles.
Good job 👏
A Ebay O2 sensor Gave 5 false codes to my OBD 2
Good job man👍👍😎
I had this problem with an old carburetor version on a 302 Ford. I just wired the choke open with baling wire.
I'm sure that improved the fuel economy 😂
@@PineHollowAutoDiagnostics I really enjoy your videos by the way. It just points out that old school guys like me need to take cars to guys like you who actually understand the electronics.
Great Work Sir
Thanks for another fun video!
I have the same amp clamp. Do you ever see ghost amperage on the amp clamp. I’m seeing 30 -50 mV not hooked up. Not sure if this is normal or defective.
Yes, it's due to the earth's magnetic field. You are supposed to hold it in the same position that you are going to clamp it on a wire, hit the zero button, then clamp it on the wire. RTFM 😀
love my 1993 very basic simple truck
Awesome truck 👍
You mentioned the play in the throttle cable and then dismissed it. You shouldnt have, this is part of the problem. These cables are notorious for losing their original operation due to stretching and what not. Check the other youtube videos about this cable cause major problems.
@3:00 mins in did they calibrate the tps when they swapped it? ok now i will resume watching
Another great video.
Good job
Should have sent peg (zip ties n bias plys) in bc a message to send one, he would send it with a bottle of “ketchup” and “Cosby in a can” and told you to use your good foot on her 😂
What did you expect those cheapo parts to do
So you have an old OBD-1 scanner?
1992 is vintage to you? Were you born yet or just a toddler? 😃
This truck was brand new when we moved to the USA... Didn't speak a word of English haha
@@PineHollowAutoDiagnostics ha ha. You're a youngsta
Why on Earth would anybody down vote
a pine hollow Auto video some real jackasses out there five of them to be specific at the moment I just checked this video keep up the good work Ivan they're always being jerks out there in the world
This is one of my favorite channels. Ivan is nobodies fool for sure. He is close to a auto tech genius.
I just purchased thinktool scanner. For some reason I can not communicate with a 2000 explorer 5.0 power balance test. I need to know where it's misfiring. Can you help me. Thanks
2000 might be too old for power balance... Try OBDII mode 6 👍
👍
I like to see old iron still on the road now people just throw the car out instead of keep it going
cool
Tps reports officespace
eBay parts aka used parts sprayed with wd40
🤣
THUMBS UP
Buy OEM
What is not commonly known about EEC IV is that when the key is turned on and in the instant befor cranking, it takes a snapshot of throttle position and assumes that as closed throttkev(TPCT). If the throttle body doesn’t agree with TPCT, the IAC goes nuts.
Another thing not commonly know is that EEC looks at the resistance on the wiper circuit, not the voltage. That voltage is an interpretation of the resistance for us stupid humans.
It's the other way around, the ECM is only measuring the voltage on the wiper using an analog to digital converter. The voltage dropped by the voltage divider depends on the wiper position which makes up the two resistances on either side. There is no way to measure resistance directly, the multimeter too only measures voltage, resistance is just a mathematical derivation by us humans...
@@jovangrbic97 but resistance is inferred by the voltage. A beautiful problem for those old fords is to get a TP sensor from a cheap source and (if it works at all) will start off with a TPCT of over a voltage. That really messes with ECC
FORD = ??
First On Race Day!!
FAILURE OF RESEARCH & DEVELOPMENT
It was wish.
Ebay operates an online market. Ebay does not sell items. Not correct to bash Ebay when a dishonest individual is seller.
Video title _"EBAY Parts Caused Ford Truck IDLE Problem?"_ I didn't know eBay was selling parts. I thought they were just an auction site for independent sellers.
Ivan, you've got to stop working on cars that are from the previous millennium. I live in a perfect climate here in Phoenix were rust doesn't exist and NOBODY drives anything that's that old with the possible exception of Hispanic landscapers. Where do you find these vehicles?
Here in Florida I see them everyday. These were some of the best trucks
ever built!
@@mark98070 Could be an East Coast/West Coast Biggie vs. Tupac thing. When I lived in Pittsburgh old rusty cars were common. Out here in AZ and in CA you just don't see them. Can't explain why.
These trucks are still around on farms all over the Midwest. Farmers keep fixing them.
Don't know how I bumped onto this. All in all GREAT content 🤩🤩🤩. I also have been watching those rather similar from mStarTutorials and kinda wonder how you guys make these clips. MStar Tutorials also had amazing information about similiar money making things on his vids.
Good job