2004 Ford F-150: check engine light

Filed Jun 24, 2025 · Brakes, Electrical · TX

Electrical malfunction with fuses , problems with brake light, engine light and air bag light . Some fuses blown out after brake light fuse popped wipers don't work at all air bog turns on and off every day not sure why

Filed Mar 10, 2025 · Engine · 100,000 miles · NJ

The contact owns a 2004 Ford F-150. The contact stated that while driving at undisclosed speeds, the vehicle shuddered and failed to accelerate while the accelerator pedal was depressed. The check engine warning light was illuminated. The contact pulled over to the shoulder of the roadway and was able to restart the vehicle. The contact scanned the vehicle with a scanner and retrieved an unknown camshaft phaser error code. The local dealer was not contacted. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the federal safety agency Hotline for assistance. The failure mileage was approximately 100,000.

Filed Aug 3, 2023 · Engine · 150,000 miles · IN

The contact owns a 2004 Ford F-150. The contact stated that while driving at an undisclosed speed, the contact observed the spark plug being ejected from the fuel compartment. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who was unable to diagnose the failure. The vehicle was repaired, but the failure reoccurred. The manufacturer was notified of the failure but referred the contact to the federal safety agency Hotline for assistance. The failure mileage was 150,000.

Filed Jul 29, 2019 · Engine · 15,000 miles · MS

Tl* the contact owns a 2004 ford f-150. While driving approximately 40 MPH, the check engine indicator illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the egr valve and the fuel injector needed to be replaced. The dealer and manufacturer were not contacted. The contact stated that the transmission and check engine indicators illuminated and were replaced in 2018. The vehicle was not repaired. The failure mileage was approximately 15,000.

Filed Sep 7, 2017 · Engine · 115,000 miles · IN

While driving the vehicle at highway speeds - rpms on engine begin to fluctuate between 2000 and 750. At next stop, engine dies, but will immediately restart. No engine malfunction codes when checked with an obd ii reader, and the check engine light does not illuminate.

Filed Mar 4, 2016 · Brakes · 129,900 miles · SD

Hard brake pedal , rough idling check engine light went to step on brakes it was a hard brake pedal had to take it out of gear tried using 2 feet to press ended up using emergency brake to stop. Checked brake boost line have no vacuum on line can push air in and hear it behind the manifold.

Filed Jan 12, 2016 · Engine · 162,000 miles · VT

Tl* the contact owns a 2004 ford f-150. While driving at an unknown speed, the check engine light illuminated. The vehicle was taken to an independent mechanic who diagnosed that the cam shaft phaser was defective and needed to be replaced. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure mileage was 162,000.

Filed Jan 3, 2016 · Engine · 130,050 miles · WI

Driving 70mph, highway 41n-wisconsin, just north of oshkosh, legal speed limit, 35 degree weather, nearing end of a 90 mile trip with wife and granddaughter, early evening, when I heard a noise/thud, then had dash engine warning lights and alarms go off as well as severe vibrating and noises under the hood with loss of power. Managed to get my 4x4 truck out of center lane and into emergency lane without being hit. Tried restarting engine a couple of times, which it did, but I shut it down immediately both times because of severe vibration and noise. After arranging for emergency road service and a police officer to protect my backside from traffic approaching from the rear, the truck was towed to my ford dealership of 12 years. I had purchased my truck there new and did all my maintenance there, except maybe a couple of oil changes when I have been out of state. There the truck was diagnosed to have cam phaser failure and needed a 5,000+ engine replacement @ 130,000 miles. Unbelievable. I've had the cracked windshield, the rear seal issues, the various electronic failures and yes, the ford spark plug issue with broken plugs during a maintenance change. I still loved my truck until it nearly caused my family and I serious injury or death, or possibly some other undeserving soul. I'm not replacing the engine and am trying to extract whatever remaining value exists. The dealership has been indifferent to the situation and has done little. So yes, I'm livid about the money and the loss of it, but am also livid and concerned as to who has to be hurt or worse yet killed before something is done. There are literally 100s/1000s of cam phaser complaints for the triton 5..4l that I have read through as well as having talked to a few mechanics since the incident. Thank you ford for taking my money and jeopardizing my family's safety. I am no longer a ford customer!

Filed Dec 27, 2015 · Engine · 155,000 miles · CA

My truck felt like it was driving really well, I was driving from a to b which was about 6 miles. Im almost home & I stop at a light,when it turned green I accelerated &when I did I heard a knocking sound&so I pulled over& I couldn't pin point exactly where it was coming from,just it was coming from the back of the engine on the right side. Im guessing maybe the 3rd or 4th spark plug. I checked my oil I was maybe 1quart low. So hoping that was it, I bought a quart&some oil repair to go in with it. The guy at autozone thought the same. As u could guess that didn't work.it sound almost like a lawn mower.which is baffling cuz there was no warning, no check engine light,no prior noise.I'm lost.I've been reading about spiting spark plugs&a lot of the same stuff happening in these trucks.I'm wondering if there was a recall? If not why? If there are complaints from over 1000 people saying the exact samething,why hunt ford done anything about it?I use this truck to take my71 year old vietnam veteran grandpa to his dr appointments&use it for work.from what I'm reading no one is gonna help but I have to try.please let me know if there is any advice or hopefully do the right thing & help me work with the dealership I bought the truck from.my# is [xxx].thanks. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Sep 18, 2015 · Engine, Fuel system · 96,000 miles · ID

Within a few weeks of purchasing my vehicle in february after pulling into a parking lot the check engine light came on. I also noticed it was making a ticking noise like a diesel engine but it's not a diesel. I went to get the codes and found it was a retarded variable valve timing issue code p0022. I looked online and went to multiple shops and mechanics to figure out the problem. After paying to replace the vct solenoids it was apparent that that was not the issue causing the timing problem. For weeks I noticed the truck shaking and at one point it actually stalled as I was pulling out of a parking lot into a busy road and it stalled as I was going into the road which caused the on coming traffic to slow and stop to avoid hitting me in the middle of the road. After spending weeks in the dealership service shop and a large sum of money they found they needed to replace the engine entirely. I have witnessed this issue happening to many many others online and in person who have the same year range with the 5.4l 3 valve triton engines. This is absolutely unacceptable for so many vehicle to have the same issue especially when it has under 100,000 miles. It is not only very poor quality for such a large price but also a safety hazard to the owner and others around these vehicles.

Filed May 16, 2015 · Engine · 105,500 miles · VA

I am now a victim of the 2004-2008 5.4l cam phaser problem. It started out when I came to a stop light and the truck started shacking really bad and making a loud knocking sound. As soon as I accelerated it went away so I thought it was a fluke. Nope!! It stated doing it more and more but I was not getting a check engine light. Finally the light came on and gave me the code p0012-intake camshaft position timing over retarded on bank 1. The only place to take it was ford because they have the most up to date and complete diagnostics tool. It is still in the shop right now but to look at the phasers to see if I need both it is running me $600 just for them to remove the valve covers to look. He said it was going to cost me close to $1500 just to fix the issue! I have read all over the internet about this issue and it seems like ford know about this issue because in 2013 they got sued because of this same problem! If you look 2004 has the most complaints of every year by far! Please stay away from the 5.4l engine or ford in general. I don't even want to get started with the spark plugs that break in the engine if you don't know what you are doing. That was another $600 bill that ford had to do. The 4wd system as well had many issues with the iwe because its a vacuum system and was brand new in 2004. To many problems with ford!

Filed Aug 28, 2014 · Engine · 88,000 miles · NY

I went to start the truck and the check engine light came on so I took it in for service and it pulled a cylinder 6 misfire code ,turns out that the spark plugs that were not supposed to be changed for another 20000mi needed to be changed and I was informed at the ford dealer that labor would be $85.per hr x 6 hrs providing the plugs did not break at this time he told me I could count on at least half of them breaking as they are notorious for this also I was informed that the new plugs were $19.50 ea.