1990 ford f150 computer problems Picked up from shop and was Nov 9, 2025 · Nothing beats the frustration when your Ford F150 cranks but won't start! To solve this problem, I have figured out the troubleshooting methods for you. While this can be a frustrating issue, there are some things that you can do to try and fix it. also has a new computer but it is not firing Mechanic's Assistant: Have you checked all the fuses? Do you have a wiring diagram? Customer: yes I have a wiring diagram Mechanic's Assistant: Are you fixing your F150 Oct 31, 2007 · 1987 - 1996 F150 - 1993 4. To May 26, 2012 · 1987 - 1996 F150 & Larger F-Series Trucks - PCM goes bad? - I have a 1991 F250 that has had a few issues, mainly rough idle and poor gas mileage. Dec 28, 2008 · I own a 1990 Ford F150 with a E4od and 302 that has plaqued me with a high idle that I just can't find. It's a 460. 5's Feb 11, 2007 · 1987 - 1996 F150 & Larger F-Series Trucks - 91' F-150 Computer Problems - My dad got in his truck one day and the truck would not start. Power to pump. relays tested. Apr 27, 2011 · In this article I'll show you a very simple, easy and highly accurate way to see if the ignition coil on your 4. Nov 13, 2008 · i am getting code 56 on my 95 f150 5. 0L or 5. The other day my fiance was driving my truck back from delivering a crib to her sister's house when she said the truck just shut itself off while she was driving. The fuel pumps are good, it would not energize the fuel pump relay. The New part's Fuel pump. What should I do next. i noticed the problem when after the truck was warmed up on the freeway it would not handle any load, if going up a hill it would chatter and bog down until on the down side. Jan 27, 2010 · 1987 - 1996 F150 & Larger F-Series Trucks - What would be some symptoms of a bad map sensor? - My truck has been feeling sluggish lately and the cel came on. 9L. Computer shows no codes. Symptoms are that the idle with jump and drop +-200 rpm, and when driving theres a slight but constant stumble, especially when accelerating. I May 4, 2024 · The ABS module of an American-made Ford F-150 is known for causing some problems from time to time. When you start it in the mornings, the idle will shoot to 2,000 RPM or so for about 30 seconds, then back down. 8L engine doesn't need (or removing the intake plenum when you don't have to), you need a diagnostic strategy to find the bad fuel injector. If it fails, the entire vehicle won’t be able to run. Been reading around for a while; decided to post because I couldn't find an answer. I have been having an ongoing issue with the onboard computer system in my truck. 1990 Speed density performance - Hi, I am new to the old ford speed density fuel injection and am wondering what I can do to help out performance. 9L / 300 - Chronic high idle problem - finally fixed it - My 1991 4. It always starts back Get the detailed, accurate 1990 Ford F-150 service and repair manual from Repair Surge with instant online access. you guys have any advise for me? and how do you clear the codes on obd1 fords? Dec 28, 2016 · 1987 - 1996 F150 & Larger F-Series Trucks - 1990 f-150 4. I turn on ignition and hear each tank fuel Sep 29, 2025 · How reliable is the 1990 Ford F-150? Explore all the popular car problems, read 21 complaints and 25 reviews from real 1990 Ford F-150 owners. When possible we give the more descriptive name of the component and the more commonly known OBD II component name. 10 gears - 37x12. These include stalling issues, not starting, and no power to the radio or accessories. These capacitors fail causing multiple issues on your el Nov 24, 2017 · Here is the problem I am currently fighting. Ford F-150 2013 my ac stoped working no compressor clutch no coolant fan no cabin blower I checked fuses and relays and Freon charge all checked good could this be the computer control it has done this before and then started working again intermittently now it’s not working again. Inquire about our ford PCM repair center today! Of course, there are numerous reasons for a faulty Sep 13, 2016 · E4OD Service on a 1990 F 250 Discussion in ' 1987 - 1991 Ford F150, F250 and F350 Truck Forum ' started by dustybumpers, Sep 13, 2016. The od light started blinking and when put in any gear the engine sounds like it is missing a few cylinders. After, the check engine light came on. Jan 11, 2012 · 1987 - 1996 F150 - My 5. For quite a few years now, troubleshooting problems in modern vehicles has been rather easy, thanks to technology. 90's Ford F150 F250 F350 Ranger Truck OBD1 ECM PCM Engine Computer Testing Common Symptoms & Failure The Trainer #121: Testing The Engine Control Module - Watch THIS Before You Order A Replacement! Apr 24, 2024 · Resolve Ford F150 transmission problems with our expert fixes tailored for 1988-2023 models. But if you’re not aware of this possible issue you may be wondering what are the possible problems can be caused by the ABS Module and Pump of a Ford F-150. Revised 27-Jan-2008 to include expanded testing for proper power to injector wiring Tools needed: Noid light, Multimeter (volts & ohms), 10 MM socket & extension, & ratchet. I replaced the brake hoses since the originals were falling apart. The codes are listed seperately based upon fuel delivery type. com Ford F-150 PCM failure symptoms explained: what to check first, which codes matter, and when you really need programming and a PATS reset. the motor run fine but I haft to jump it to get run. Now that out ther the truck has had a EZ life it has 91k on it. 1990 Ford F-150 Problems and ComplaintsOther Models AerostarNumber of complaints: 3018 AspireNumber of complaints: 278 BroncoNumber of complaints: 1374 Bronco IINumber of complaints: 257 Bronco SportNumber of complaints: 534 C-MaxNumber of complaints: 363 C-Max EnergiNumber of complaints: 127 C-Max HybridNumber of complaints: 172 ContourNumber of complaints: 4342 Crown VictoriaNumber of Feb 6, 2025 · Learn about common transmission problems in the 1990 Ford F150, symptoms, consequences, and repair costs. Jan 12, 2021 · just replaced my ecm, pcm, eec (whatever you wanna call the computer) and my coworker said the reason I am in limp mode is because it needs to be programmed but last I checked these were typically plug and play on the older obs fords. i recently bought the truck and it had a transmission slip so i bought a new transmission (same model) and now it won't let me shift out of 1st gear in drive. symptoms are black smoke, rough idle, still happily goes up to speed but stumbles/bucks with light throttle input Sep 7, 2018 · 2009 - 2014 Ford F150 - Possible Computer Issues - Hello, 2011 F-150 Platinum Need some help from the community. In this video, you will learn 4 symptoms of a bad or failing engine control module. 0 over a year ago, correct ecm, correct distributor with swapped on correct gear and grey icm. Now when I run the codes I get koeo 111 then 10 for separator then no continuous code like the computer is whacked . Free Same Day Store Pickup. I have not had any issues with my truck to date. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. The Hidden Engine Health Test in Ford EEC-IV PCMs that you need to know about. In this article we’ll look at the most common F-150 locking problems and how to solve them. Aug 21, 2010 · 1987 - 1996 F150 - Computer and Map sensor problems - 1994 Ford F150 XL, 4. Dec 6, 2017 · This is an extremely common problem with this generation of PCM's found in the F150. 9 (Walk softly and carry a big 6, lol) and the 4-speed manual with OD. Erased the codes. It runs, but very rough. 9L inline 6. Both of the motors don't run the same, but the way the 393 is May 5, 2010 · 1987 - 1996 F150 & Larger F-Series Trucks - 1990 F150 5. where is it? :help: It's not the little gold box, and there's nothing next to it except 2 weatherpacks running to a plastic dust cover. key on, both Jun 25, 2018 · Looking at buying or restoring a used Ford F Series pickup truck? See the common Ford F-150 problems that you should know about. Considering the amount of information running through the cluster it can also be a bit daunting to try and identify the issue. The truck is a 1990 F250 with a 7. See full list on 700r4transmissionhq. e. 8 from 5. I have check all grounds that I can find. 8 Timing Question HELP!! - I have a 1990 f250 5. The smell of fuel was also in the air. The truck would try to turn over but Jan 23, 2012 · Ford F150 Forum - Community of Ford Truck Fans Late Model F150s How-to Section Engine & Drivetrain Battery relearn process Topic Sponsor Engine & Drivetrain "How-To" articles pertaining to the Engine and Drivetrain of an F150 (including Exhaust) Jun 29, 2016 · Welcome to Ford Truck Zone! Ford Truck Zone, a F150 Forum and F250 Super Duty Forum with news, articles, community, specifications and much more. When turning over the engine, the check engine is on and the engine is running ruff, smoke and fuel coming out the tail pipe, until all cyclinders Hello,This video shows how to replace the failed capacitors in your 1980's 1990's Ford car or truck. 9L, 5. Watching this video will help you diagnose to see if it's time to replace your engine control module. 0 L MPI, One day driving I let my foot off the gas pedal a little then gave it more gas it lost all power but when lifted back off again it caught if i give more gas when it does it will backfire. Full tune up. straight drive transmission. 5L/460. If you’re having trouble with your Ford F-150’s Nov 10, 2009 · Whether your Ford or Mercury car or truck cranks but does not start or runs with a misfire condition, this tutorial is for you. Order Ford F150 Engine Control Computer online today. truck starts great cold runs great cold. msd ignition headers. It usually idles around 1200-1400 RPM, even with the IAC disconnected and the base ECM Rebuilding | Engine Control Modules A faulty Auto Computer is a very common issue on a pre-owned vehicle. Mar 5, 2012 · 1987 - 1996 F150 - ecm test - is there any way to actually test the computer in these trucks, or just look for obvious signs and possibly replace?? ive had a few problems and im starting to see signs of what i think may mean a bad computer. This is generally used on 1991 - 1996 trucks and cars. I actually just kick it down everytime I come to a stop. 0L,V8. This time, we showcase our custom Ford EEC-IV ECM/PCM Engine computer tester! This testing rig allows us to test several key circuits inside these failure prone PCMs to both verify condition Dec 18, 2023 · Our comprehensive guide to identify and address Powertrain Control Module (PCM) issues in your Ford F-150. One common issue that owners may encounter is a malfunctioning computer system. 0 AOD automatic transmission 4x4. The 1990 Ford F-150 has 3 problems & defects reported by F-150 owners. Feb 2, 2012 · 1987 - 1996 F150 - 1990 F150 4. If you’re experiencing problems with your F-150’s computer, you might be wondering, “How do you reboot a Ford F-150 computer?” This blog post will walk you through the process of Sep 22, 2022 · General F150 Discussion - 4. My 1990 F150 5. 8 4X4 that I am getting close to being a daily driver, thanks to the help and advice from this forum. Nov 18, 2004 · The FoMoCo unit rarely goes bad; ignition problems with the TFI system are usually caused by plug/coil wire problems, bad dizzy caps & rotors, etc. I have a 1990 F350 crew cab that I recently bought cheap needing a transmission. 9 liter hard start back fires during warm up hesitates miss at mid range seem to run better with vacumn leak new coolant sensor map sensor rebuilt computer tps in rangenew ign. Learn how to diagnose & resolve these issues and legal recourse options under lemon law. Having problems with your truck? Need help figuring out what those diagnostic trouble codes mean? Well, look no further. it also Customer: hello I have a 1990 ford f150 with a 5. Now I have 12 volts on the injectors, but still no pulse. This is a guide on how to reset the computer on a Ford F-150, a popular truck model. 5's WORK TO BE DONE: 6" Lift and finally get this d*** sold axle in (or sell it and put a D60 in) + 36" HMMWV Take-Offs + Hydro-Assist + Complete Turbo'd 300 Builder Engine + Block Heater + Single 3" Stainless Jan 12, 2007 · Ford Inline Six, 200, 250, 4. I did not have 12 volts on the injector plugs. 0 engine,with a e40d trans. The truck runs very well but after being warmed up and driven a few miles it cranks over hard, almost like a near dead Feb 20, 2023 · Hello, First time posting here. What has been done: * New plugs (Motorcraft) * New wires * New distributor, cap, rotor * New MAP sensor (checked Reference and Signal - checks out fine) * Checked TPS - Reference and Signal check out * Timing set to 10*BTDC Sep 29, 2024 · The Ford F-150 is a popular and reliable truck, but like any vehicle, it can experience its fair share of electronic glitches. Get back on the road hassle-free! Sep 26, 2019 · 1990 f150 swapped in a 5. Read expert Ford F-150 engine problem guides and repair how to's with photos and videos to help you maintain your Ford truck engine. Jan 31, 2023 · Explore the Ford F-150 codes list for troubleshooting and understanding your vehicle's diagnostics effectively. 0. Despite being known for its ruggedness, door and tailgate locking issues can occur. These are the codes applicable to the EEC-IV processor Ford vehicles. I live in northern minnesota and when I come to a stop I have to put it in neutral of it just keeps pushing me along. 9 engine Since purchasing my truck, I have had nothing but problems with the Map Sensor and the computer on the truck. What's even more common, are other issues causing the vehicle owner to believe their engine control modules ECM is misfunctioning. Find repair tips and replacement costs. Jun 11, 2025 · How reliable is the 1990 Ford F150? Explore all the popular car problems, read 273 complaints and 5 recalls, and read 24 reviews from real 1990 Ford F150 owners. Inquire about our ford PCM repair center today! Of course, there are numerous reasons for a faulty Feb 3, 2009 · Truck - 1992 ford f150 5. The codes are defined as to what system is affected. I hear (from threads) that the throttle body springs tend to get "hung" up and need Apr 28, 2013 · 1987 - 1996 F150 Still running strong! Talk about your 8th and 9th generation Ford F150 trucks. 9l electrical, IAC, computer? - Hi all. Aug 21, 2014 · General F150 Discussion - E40D Transmission Problems. Sep 5, 2023 · Looking for a solution on Ford F150 Instrument Cluster Problems? This is the place. 50r16. Here, all the common problems along with the solutions have been discussed. - Hi guys. 0lt engine. 9 crash-harris Ford Truck Fanatic Posts: 1455 Joined: Sun Jan 20, 2008 6:07 am Truck: 1990 Ford F150 Location: Chillicothe, Ohio Mar 11, 2010 · 1990 F-150 XLT Lariat 300ci BIG SIX, EFI - 2. Will fire if ether sprayed in. Get insights into repairs and maintenance on RepairPal. When in reality, the Engine Computer is perfectly fine. 9L / 300 - Ignition Control Module failure? - About a year ago I replaced my control module and that stopped all the at-random stalling I had been having. symptoms are black smoke, rough idle, still happily goes up to speed but stumbles/bucks with light throttle input Jul 23, 2008 · 96 F150 4. I just won't go into it again. Apr 6, 2014 · 1987 - 1996 F150 & Larger F-Series Trucks - Where is my TFI module? - I am still trying to figure out the problem with my 92 F-150. module evp in range o2 sensor in range fuel pressure 50-60 ign timming 10 dr. It could be a minor issue, like a loose gas cap, or something more serious involving the engine or emissions system. 9L EFI I-6 - I have an old rig that i got from my step dad but it's all towing power and it barley accelerates so i know it's kind of hard to get more horse power but what do i need to add or do to get more power? please help! thanks, Ryan H. Oct 30, 2009 · 1987 - 1996 F150 & Larger F-Series Trucks - 1990 F150 Fuel Issue ? - I have a 1990 F150 4WD with the 302 5. Problem with your 1990 Ford F-150? Our list of 16 known complaints reported by owners can help you fix your 1990 Ford F-150. 0L, 5. ounce the truck gets to operating temp it will not idle in park or neutral with out throttle Jun 29, 2011 · 1987 - 1996 F150 - 1990 Ford f150 4. Both of the motors don't run the same, but the way the 393 is Oct 26, 2007 · 1987 - 1996 F150 - timing problems with 90 f150, 4. I scanned the computer and came up with a code 99 ecp circuit failure. 9l 5 Speed Original Computer? - I been restoring my dads old truck, after rebuilding the motor and pretty much everything else i still have a small random stutter. , 4x4 dual-tanks I need help from the experts!! Engine won't start from lack of fuel. Sep 18, 2023 · The Ford F-150 is the best-selling pick-up in the US. Sep 17, 2015 · Electrical - '91 4. 0 v8 (very high idle) HELP PLEAS by ford family » Wed Feb 29, 2012 3:10 am Just a though but could it be a vacuum leak? Check the brake booster line ? Dec 13, 2010 · 1990 F-150 fuel pumps run continuously - engine won't start by chris90 » Mon Dec 13, 2010 8:23 pm I have a 1990 F150 300ci in-line 6 cyl. 8 work in my truck? I have a 1990 f-150 2wd with a 5. I have checked dashboard fuel selector switch and it's fine. Oct 26, 2008 · 1990 F-150 XLT Lariat 300ci BIG SIX, EFI - 2. Learn about common symptoms, diagnostic steps, and Explore common issues for the 1990 Ford F-150, including engine problems, leaks, and owner complaints. In 2004 they changed to a 5R110 transmission and the codes are different. 1991 FORD F-150 Electrical problem 1991 Ford F150 6 cyl Two Wheel Drive Manual 134K miles Having problems with the engine cutting out and hard to restart and occasional Check Engine Light as well. The codes for 4R70W and 4R75w are for F-150 and E-150 1996- 2006. Since I have posted several times about it and even started a thread with as much info as possible about it, with not a lick of help/advice. This page contains the 2-digit trouble codes that may be found when troubleshooting EEC-IV / OBD-I vehicles. The capacitors leak and if left long enough will corrode the circuit board, often making it not rebuild-able. The results Sep 6, 2009 · 1987 - 1996 F150 & Larger F-Series Trucks - ford f150, 1990, 4. I'm sure that's probably a vacuum leak somewhere But, what's got me stumped Oct 28, 2017 · 1987 - 1996 F150 - 1990 F150 crank but no start - my 1990 F150 with 4. 0L has a history of erratic idle problems. I'd also check the TFI coil with an ohmmeter to see if it's up to snuff. Mar 14, 2025 · 1987 - 1996 F150 - 1990 f150 stumbles and has a erratic idle - Howdy yall, ive been dealing with a rough running condition on my 1990 f150 302 for the past couple weeks. See the most common problems and issues that you will be faced when you buy a Ford F150 pickup truck. All F-series generations are covered from the original F1 and early F100 to modern F150 and F250, as well as variants such as the Bronco, Ranger, Expedition, Excursion, Navigator and Explorer. 1990 f-150 with headers and cold air intake. Sep 12, 2023 · 1987 - 1996 F150 & Larger F-Series Trucks - 90 F150 Custom 4. For one, it idles high. 0L 1990 F150 - My first post, so here goes. Same code. Fuel pump is coming on, did drain out a tank full of very stale gas, plugs were fouled from it. Dec 6, 2017 · 1987 - 1996 F150 Still running strong! Talk about your 8th and 9th generation Ford F150 trucks. I took it down to a shop and they told me that my EGR valve is stuck open Ive had my 1990 f150 with a 5. Has ran stunningly perfect until 2 days ago. It has the 5. Customer: I have a 1990 Ford F150 with 5. (it will fire on ether with no problem). Truck started running poor so I ran codes and got a 172 so I changed the o2 s and a few days later same problem , I checked for vacuum leaks and cleaned all the grounds under hood cleaned plug . May 5, 2020 · I have a 1995 F-150 5. 0L Manual 2wd that's giving me some problems. The problem, besides that, is that since it's gotten colder, the idle will drop lower and lower until it stalls. With the tests I'm gonna' show you, you'll be able to pinpoint the problem to the ignition control module, or the ignition coil, or the Profile Ignition Pickup (PIP) sensor, or the spark plug wires, or the distributor cap. 0 no a/c e40d trans /shift kit 2 wd. 9/E4OD running rough, hard to start and no power. Note: Do all of the steps and do them in order. The only remanufactured starters I Recommend: (check fitment guide)h Apr 4, 2012 · To avoid replacing parts that your Ford 5. 1990 f150, straight 6, manual, 4x4. 0 4X4 with auto trans 232,000 miles. It usually idles around 1200-1400 RPM, even with the IAC disconnected and the base Aug 24, 2012 · Do the checklist below. I unplugged the o2s and Apr 26, 2025 · Resetting your car's computer can be a helpful solution to a range of issues, from hard shifting to problems with phone and truck interfaces. 0 motor, manual transmission, and it's the xlt lariat 4x4 short bed. I'm new to the forums as well as owning a Ford truck. So, the newest issue I need to work on is his brake lights. After some trouble shooting we discovered the fuel pump was not running and there was no spark. Aug 22, 2021 · 1987 - 1996 F150 - 1990 F-150 Brake Problems - I have been having some really annoying brake problems with my truck since I got it almost 1 year ago. Jun 2, 2022 · When your F150 is experiencing instrument cluster issues, it can be frustrating. You won't need any expensive testing Jan 2, 2012 · I've been messing with this problem for a while on my 87 F150. It will also just turn on and start sending me to a random location with voice directions. It will not run you can trun the key the motor Oct 2, 2010 · Computer Chips & Tuners - . Ignition switch. changed wiring harness, good fuel pressure to injectors still no pulse, Help Please thanks in advance Mar 31, 2022 · This 1990 Ford F-150 was suffering from idle issues that couldn’t be diagnosed using a scan tool. I replaced an Idle Air Controller on the advice of the SMOG tech (I'm in CA) and as soon as I May 27, 2013 · Codes pulled 31,67,81,82,84 Lets take them one at at a time: Code 31 - EVP signal return lower than expected. Especially when load is introduced. I have a 1993 F150 5. Check out free battery charging and engine diagnostic testing while you are in store. My truck is a 1990 ford super duty rollback wrecker. The most common culprits include: Insufficient Electrical Current Odometer Blackout Internal Component Failure And, since driving with a non-functioning cluster is really annoying (and Nov 16, 2012 · 1987 - 1996 F150 & Larger F-Series Trucks - EEC-IV PCM Capacitor Leakage Problem - This isn't new news - it's been discussed here several times how our PCM's are increasingly failing due to capacitor leakage. need a little advice. My recent manual trans conversion has just exacerbated the problem. Sep 2, 2025 · Ford F150 PCM Failure Symptoms explained: check engine light, poor mileage, stalling & more. Oct 27, 2003 · 1987 - 1996 F150 & Larger F-Series Trucks - 1990 F150 computer problem - I have been told my computer could be burnt out. No injector pulse is usually a PIP problem. This page explains how to get the codes without any special tools. There are a host of things that could be the cause but the most common is either a stuck EGR valve or a "dead spot" in the EVP sensor itself. 9L Computer Reset - A while back, my truck barely started and idled poorly. Hopefully this can save some of Dec 8, 2023 · Ford F150 Computer Problems The Ford F-150 has been one of America’s most popular trucks for decades, but it’s not without its share of problems. Fuel injectors inoperative, one or more injectors either on all the time or will not squirt. First post. These instructions apply to both the grey Oct 19, 2023 · Explore our comprehensive guide on Ford F150 PCM failure symptoms. Truck won't start. Pulled the codes and 172Oxygen sensor lean. Jan 29, 2002 · Ford Inline Six, 200, 250, 4. The worst complaints are body / paint, electrical, and fuel system problems. fuel injectors dont pulse, spray starting fluid truck will start. The GPS randomly starts and stops working. I then went through the rear brakes and replaced the hardware, wheel cylinders, and shoes. So I put it on the scanner and it brought up malfunctioning map sensor. 0L Stuttering/Stalling problem solved! - First off, a little background. Alternator. I'm having some problems and not exactly sure where to go next. Some of you may remember the difficulty I had with the old 302 that was there. Sep 9, 2011 · 1987 - 1996 F150 & Larger F-Series Trucks - 1990 f150 idle problems - 1990 f 150 302 5. Dec 23, 2013 · 6 Cylinder Engines - 1990 4. May 12, 2005 · 1987 - 1996 F150 & Larger F-Series Trucks - Symptoms of bad TFI module? - Well, I finally got my 393 installed and fired it up. It drops phone calls or won't call while using ECM Rebuilding | Engine Control Modules A faulty Auto Computer is a very common issue on a pre-owned vehicle. To make a long story short, I tried changing the components ID'd by the code reader (MAP and EGR) but had no luck. Customer: 1990 Ford f150 4. Top 5 Problems Ford F-150 Truck 1992-1996 9th Generation The check engine light on your Ford F-150 indicates that the vehicle's onboard computer has detected a problem. This information combined with proper testing procedures Apr 1, 2022 · Wanted to aware others that our 85-95 & 96 EEC-IV/EEC-V ECU's are now a common failure and will cause no start conditions, transmission shifting problems, and poor engine running conditions upon failure or early failure. Cranks all day long but will not fire. 0 Will a tranny from a1993 with a5. So first of all i just went to the junkyard and got a used one but it didn't make a Feb 29, 2012 · Re: 1992 f-150 4x2 302 5. We went thru issues with the coolant temp sensor awhile back and everything was fine after replacing it. I have a 94 f150 with transmission code E4OD Oct 28, 2017 · 1987 - 1996 F150 - 1990 F150 crank but no start - my 1990 F150 with 4. Nov 12, 2019 · Your Ford F150 ‘s ignition switch is one of the most vital items on the entire vehicle. this was my progression today. 9l Rich & Rough running warm - We have a 1990 XLT Lariat with 4. 9 electrical problem? - Will not stay running. Then the Feb 9, 2019 · Maintenance Shop - 1990 Ford F-150 problems - I have a 1990 Ford F-150 I just bought that's not running right. If you’re having trouble with your Ford F-150’s Nov 22, 2009 · Clutch, Transmission, Differential, Axle & Transfer Case - really useful writeup on dreaded e4od i found - I have seen a plethra of E4OD problem threads popping up lately. Sep 11, 2011 · 1987 - 1996 F150 & Larger F-Series Trucks - 5. 9 engine, will crank but not start. 0 the coil has a constant 12 volts to the coil it has a new coil and pickup coil and ignition module the rotor turns in the dist. The truck seems to stay at fast idle. Aug 21, 2010 · 1987 - 1996 F150 & Larger F-Series Trucks - How to determine whether the ECM is bad or not - I have another thread about my '94 F150 with a 4. 0L, and I had the oh so common hesitation, stuttering, stalling problem, that so many of you also have. I ran a wire from the EEC relay splicing into the red 12 volt wire and connected it to the red wire on the injector plug. His tail lights work, blinkers work, but you have to practically slam on brakes to get the brake lights May 12, 2005 · 1987 - 1996 F150 & Larger F-Series Trucks - Symptoms of bad TFI module? - Well, I finally got my 393 installed and fired it up. The test you'll be doing is an on car test done with the ignition coil in action. I replaced the battery cables in my truck. no smog control dual exhaust no cats. newest issue is no fuel . Ford F-150 2013 my ac stoped working no compressor clutch no coolant fan no cabin blower I checked fuses and relays and Freon charge all checked good could this be the computer control it has done this before and then started working again intermittently now it’s not working again Apr 6, 2015 · Hello, I have been fighting a lack of power, stumbling hesitation on a 1990 F-150 with a 4. The truck has about 70k original miles. Any Ideas? 90's Ford F150 F250 F350 Ranger Truck OBD1 ECM PCM Engine Computer Testing Common Symptoms & Failure The Trainer #121: Testing The Engine Control Module - Watch THIS Before You Order A Replacement! Sep 26, 2019 · 1990 f150 swapped in a 5. This video Oct 14, 2011 · 1987 - 1996 F150 - 1990 f150 - My son's 1990 F150 xlt Lariat is coming along nicely. I recently bought a 1990 F150 XLT 351 4X4 long-bed with 160,000 miles. I have replaced the in tank fuel pump, checked the fuel pump relay (i switched this one with the one in my 1991- the one out of the super duty works fine in the 1991 f250). I've got a 1990 F150 XLT Lariat 5. 5 VDC. It has an EFI 4. In the past "archives of FSB" we usually ruled ECU failure to be a very Oct 19, 2010 · 1987 - 1996 F150 - Erratic Idle 5. (i. IAC is new, TPS is new, all the voltages to these are in the correct range. 9L has had a high idle ever since I bought it from my brother-in-law. In this video we show you in detail how to diagnose a faulty starter on your Ford F-150. - alright i have an automatic 2 wheel drive 1990 ford f-150 custom with an e40d transmission. I have gotten much advice from this forum, and it is much appreciated. i also noticed when hot it was hard to Oct 22, 2008 · I have a 1994 Ford F150 5. . 8L Ford F150 (or E150, Bronco, Crown Victoria, Grand Marquis, etc) is fried and causing your vehicle to NOT START or not the cause of the problem. If I were driving under light throttle it would randomly cut out, like it had a bad miss, and Nov 22, 2009 · Clutch, Transmission, Differential, Axle & Transfer Case - really useful writeup on dreaded e4od i found - I have seen a plethra of E4OD problem threads popping up lately. 9 standard w/od. 5" Flapper Stack (no mufflers or cats) - K&N Filter/PVC Kit - Converted to 4x4 - UNDERGOING SAS and 8-Lug Swap - 4. I am asking Jan 31, 2023 · Explore the Ford F-150 codes list for troubleshooting and understanding your vehicle's diagnostics effectively. A/C) Last remedy included a newly remanufactured and programmed ECM and a new throttle position sensor TPS. 9 - i recently purchased a 90 fi50 4. 0 engine problems - Hey guys. Basically this means that the voltage coming back to the ECA (computer) from the EVP (EGR Valve position) sensor was lower than 0. pump works when hotwired. 9 EFI and 5-speed. We’ve compiled some of the most common symptoms of a bad ignition switch. Also includes some brief fixes and costs. I have been getting codes from it and the latest was code 32 related to the EGR valve. I have spark and compression and have set timing. I hope that this thread will help guide those with issues through the diagnostic and maybe even the repair process. More digging Jan 9, 2011 · 1987 - 1996 F150 - 1990 Where's the ECM? - it's not above the gas pedal, I've looked everywhere. I parked it due to the fact it wont start cold without starting ? Learn how to reset the engine control module in less than 15 minutes if you installed new parts or just for the ECM to relearn your driving habits 1990 F150 Problems by 1990f150 » Fri Aug 24, 2007 3:21 am alright, ive been asking tons of q's but now i just want to let you know whats going on. One common issue that owners have reported is problems with the truck’s computer system. […] Jan 12, 2007 · Ford Inline Six, 200, 250, 4. 9L PCM & Rich Fuel Problems - This has been a great truck that ran perfectly for 22 years with no problems. Lately sits unused a lot and most trips are severe service - which may or may not be contributing factors: Long story - short version: truck runs way too rich, stumbles, power Sep 26, 2016 · 1987 - 1996 F150 & Larger F-Series Trucks - No fuel injector pulse - Hello everyone. Learn more here! Jan 5, 2008 · I have a1993 Ford F150 that has a5. Even after its warmed up, when you come to a stop sign it is still at high rpms. Sep 6, 2009 · 1987 - 1996 F150 & Larger F-Series Trucks - ford f150, 1990, 4. 0 sitting since 2014. Customer: 1990 f150 4. Nov 24, 2017 · Here is the problem I am currently fighting. I also inspected the IAC and TPS but found no smoking gun. 9L no fuel. I have battery voltage at the eec relay, in and out. Nov 4, 2019 · Transmission problems Discussion in ' 1992 - 1996 Ford F150, F250 and F350 Truck Forum ' started by Tristinsulli, Nov 4, 2019. iac motor works new plugs wires dist cap rotor fuel filter vacumn 17 at idle no ehaust pressure injector pulse with in Learn how to locate and reset the Fuel Pump Shut-Off Switch (Inertia Switch) on your 1990, 1991, 1992, 1993, 1994, and 1995 Ford F-150! This switch is also commonly referred to as the inertia Aug 18, 2009 · 1987 - 1996 F150 & Larger F-Series Trucks - PIP Sensor module for distributor - After reading some of the posts here I am almost convinced that this is the cause of my starting problems. I had a scanner put on it and it TP out of range, so i replace tps and it still does it, so i check fuel pressure its within spec,s did fuel pressure Jan 24, 2007 · The E40D and 4R100 codes are for gas and diesel for 1996 – 2003 E and F-series Super Duty (250 350 450 550). i've posted a lot about this truck and im hoping this is my last problem. It was time for a new one (248,000miles and counting), so replaced with new. The check engine light came on again. Ford Motor Corporation OBD I diagnostic. Ran rough as well. 9 L Fuel injectors dont pulse - Truck will not run, fire on both sides of wires. uhum yqqs osnwpnmzn infiwbb yifrjii ybebtp lzjn wrf wmwa zlpv uqvc rtqvfi isgx sjxxz vxdeyk