Problems · by component
2012 Ford F-150 engine problems
473 owner complaints to NHTSA about the 2012 Ford F-150 cite engine, 28% of all 1,717 complaints for this model year.
Complaints
473
28% of all complaints
Crashes
4
Reported by owners
Fires
3
Reported by owners
Injuries
0
Reported by owners
What owners say about the engine
Verbatim from NHTSA complaints, newest first
“The cam phasers are in need of changing. Ford has acknowledged they are aware of the problems with the 3.5 Ecoboost engine but will not take responsibility and repair them. I definitely can not pay for this type of tepair”
“The contact owns a 2012 Ford F-150. The contact stated while driving 45 MPH, the vehicle lost motive power. There was no warning light illuminated. The vehicle was towed to an independent mechanic, where it was diagnosed that the timing chain and valve had failed and needed to be replaced. The vehicle was repaired; however, the failure recurred. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 151,000.”
“Engine coolant over temperature condition. Cylinder head overtemperature condition. Engine air filter restriction pending. Ceased running boards/ rusted. Broken suspensions and bad tie rods. Bluetooth doesn’t connect sometimes. Engine or turbo making loud noises when accelerated.”
“2012 f150 3. 5L Ecoboost engine. Had the all too well known rattle at start up because of failed to ing components/timing chain stretched. Repair cost me 5k dollars and failed AGAIN after only 4000 miles. Got code for timing being over-retarded. Took to dealer that initially did the job. Were supposed to repair at no cost to me, in my opinion anyway. Then they send me a video and tell me something else with the timing was the issue. When I called back to confirm, the story changed again that they never replaced the current failed part in the first place. All these engines have the same problem spanning numerous years and not my truck is being held hostage because they want another 15,000 from me for a new engine! 20,000 for a remanufactured engine is crazy! Please help owners and investigate this issue with Ford Ecoboost engines!”
“The contact owns a 2012 Ford F-150. The contact stated while driving 40-50 MPH, the vehicle hesitated and jerked. The contact depressed the accelerator pedal, but the vehicle hesitated and lost motive power. The transmission slipped and downshifted to first gear. The contact was able to move over to the side of the road. The wrench warning light and the check engine warning light was illuminated. The contact turned off the vehicle and waited for a while. The vehicle was restarted and returned to normal functionality; however, the vehicle failed to get up to speed. The vehicle was taken to the dealer where it was diagnosed that the lead frame needed to be replaced. The vehicle was not repaired. The contact stated that the vehicle had been taken to the dealer weeks prior the failure for service. The contact was provided with the manufacturer's recall number: 19N01 and an unknown update was performed on the vehicle. The manufacturer was made aware of the failure and referred the contact to the NHSTA Hotline for assistance. The failure mileage was 175,000.”
“The contact owns a 2012 Ford F-150. The contact stated when the vehicle started, there was an abnormal rattling sound coming from the vehicle. The vehicle was taken to the dealer, where it was diagnosed with failed variable camshaft timing (VCT) cam phasers. The contact was informed that the VCT cam phasers and the timing chain needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 74,000.”
Showing 6 of 473 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 3, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.