2005 Ford F-150: misfire or rough idle

Filed Apr 3, 2017 · Engine, Fuel system · 76,000 miles · PA · fire

Tl* the contact owns a 2005 ford f-150. While driving various speeds, the vehicle lost power and misfired, and smoke could be seen coming from the rear of the vehicle. The vehicle was taken to an independent mechanic who initially diagnosed a fuel leak from the exhaust. Upon further investigation, the mechanic stated that injector number 7 was not closing correctly and causing the fuel to enter the cylinder. As a result, the motor needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The dealer stated that the VIN was excluded from a recall on the injectors. The recall details were not provided. The failure mileage was approximately 76,000.

Filed Nov 29, 2016 · Acceleration, Engine · 130,000 miles · AR

Truck was bought and I replaced all spark plugs and even had to replace a clinoid because was told that was the problem. Its not... There is a ball valve in the transmission that keeps the truck from building enough pressure to be able to shift which throws a code and says misfire on 6 been replaced twice now so clearly not the problem. This is a major issue.. Truck feels as if fixing to fie then check engine light will come on start flashing but throw no codes and you cant speed back up because it feels like your truck is about to die and you don't want to blow your motor.

Filed May 13, 2016 · Engine · 138,400 miles · OH

I was driving through the country, and something felt odd. At approximately 45 MPH, the truck started to shake, (more than normal) and was then vanish after 55 MPH. After the next few days, the shaking got worse. My first thought, "I have a misfire on one of my cylinders". On my way home from work my truck through a check engine light. I then proceeded to take it to my dealer because at this point it would barely go over 40 MPH. They checked the code and turns out that the truck has a number of problems; that what I have seen on this website are a very common issue with this year and engine type (5.4l v8 tritton). I need new vct solenoids, new camphasers, timing adjustments, and new cam shaft position sensors. To make a long story short, the common problem that happens to this engine, happened yet again. Bad cam phasers. Happened around 138,4xx miles. Not sure if any previous owner replaced this part before or not. But, it seems even if replaced, the problem will still persist in the future. This is in need of recall.

Filed Mar 19, 2016 · Engine, Transmission · 165,000 miles · SC

My truck has a known issue with the 5.4l's cam phasers. The truck makes a very loud noise and shakes. To repair this, it's around $3,000 and also I have a known issue with all 8 coils which had to be replaced for $1,200 and a known misfire. I do not understand why ford motor is aware of the ongoing issues in this year truck and has not done anything about it. Also if the cam phasers are not replaced the engine will blow!

Filed Apr 29, 2015 · Engine · 125,000 miles · IL

Tl* the contact owns a 2005 ford f-150. The contact stated that while driving approximately 50 MPH, the vehicle independently decelerated before rapidly accelerating without warning. The failure persisted and would cause the engine to misfire. The vehicle was taken to a dealer. The technician diagnosed that the spark plug, ignition coil, and the number five coil needed to be replaced. The vehicle was repaired however, the failure recurred. The manufacturer was made aware of the failure. The failure mileage was 125,000.

Filed Jan 22, 2015 · Engine · 90,000 miles · CA

Tl* the contact owns a 2005 ford f-150. The contact stated that after starting the vehicle, the engine misfire and the check engine warning light illuminated. The problem recurred multiple times. The vehicle was taken to an independent mechanic. The technician diagnosed that the spark plug was fractured and that needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was 90,000.

Filed Oct 9, 2014 · Electrical, Engine · WI

2005 ford f-150. Consumer writes in regards to spark plugs and coils problem. *smd the consumer stated the vehicle stalled, upon acceleration. The consumer also stated the check engine light illuminated and flashed when a spark plus misfired.

Filed Sep 23, 2014 · Engine · 75,000 miles · MI

Truck shakes vigorously at speeds over 55mph, cannot excel in fast oncoming traffic with children in vehicle! Engine cuts out and jerks the whole vehicle. Misfiring. Continuously having to get towing because the vehicle fails to start all together! This could lead to injury, death, accidents not only for the driver/passengers but others on the roads as well. This issue has been brought to attention in the ford f-150 5.4l engine more than several hundred times and no action has been taken. You can find information all over of people having the same issues, the ford dealership I took it to told me I would need a new engine or to spend thousands to fix it and they see people back in there within the month of spending grands to fix it. Something needs done about this before people end up dying in these vehicles.

Filed Apr 23, 2014 · Engine · 80,000 miles · MI

The 5.4l engine installed in the ford f150 has nothing but a bad reputation for costing consumers thousands and never being able to fully fix the issue without replacing the entire engine. The vehicle cuts out of power, shakes vigorously, misfires and is dangerous on highways, hills, or any roadway for that matter. Our personal experience almost got us rear ended by a semi truck with our children in the vehicle because we could not get it to move without losing power and shaking and jerking! There have been several thousand complaints filed on this engine I'm sure, judging by the forums, websites, car complaint sites etc. Meanwhile, we took our truck into a ford dealership and were told that they get hundreds of people who bring these vehicles in and spend thousands to replace the cam phasers just to have the same issue the next month! By the time you are able to fix the problem you've put out more money than the vehicle is worth at that point! Get these engines recalled and get them off the roads. They're unsafe for drivers, families and others on the roadways!

Filed Apr 20, 2012 · Engine, Fuel system · 94,000 miles · WA

Tl* the contact owns a 2005 ford f-150. The contact stated that while driving approximately 55 MPH he noticed that the engine misfired. The vehicle was taken to an independent mechanic and the mechanic stated that the reverse spark plugs welded themselves to the engine head. The mechanic performed a tune up and replaced the spark plugs. The manufacturer was notified. The failure mileage was approximately 94,000. The VIN was unavailable. Updated 06/05/12*lj the customer stated ford replacedthe faulty fuel injectors. Updated 06/06/12

Filed Feb 9, 2012 · Electrical, Engine · PA

2005 ford f150. Consumer states engine shuts off and vehicle continues to go into "fail safe mode" *tgw the consumer stated there were times when the vehicle would re-start, and other times it wouldn't. The consumer stated several components such as the fuel filter, catalytic converter, fuel pump module, throttle body, and crankshaft position sensor were replaced to try and rectify the problem. The engine began to misfire and the check engine light illuminated. The consumer stated it was finally determined, the casing on the crankshaft position sensor wire had rubbed through and was shorting out on the AC line running along the right fender well. The consumer stated at some point when his vehicle was being serviced at the dealer, a cover was removed from the far left wiring harness at the PCM, which permitted water to run down the inside of the wiring harness and shorted out the connector. Jb

Filed Oct 22, 2011 · Engine · 150,000 miles · CA

Vehicle misfired on acceleration on highway. Was aware of spark plug ejections w/ my particular year and model after going through camshaft phaser repairs. (2005 f-150 w/ 5.4l triton engine). Mechanic suggested replacing all factory spark plugs w/ new designed spark plug kit to eliminate ejection problem. I did so at a cost of $831.52. Costs to date $4729.25 within the last 2 months on a 2005 vehicle. Unacceptable. Researched on internet and found this to be a very well known problem. No mention of it from the dealer upon purchase. Ford has turned their back on this (and the camshaft phaser defect). I am a small contractor whose livelihood depends on this vehicle. The purchase price of $35,890.00 plus tax and license was a huge investment for me (I paid cash and drained my savings so I would not have monthly payment). So these additional costs to an almost new vehicle have drained my account again.