Engine Failure problems of the 2012 Ford F-150

Seven problems related to engine failure have been reported for the 2012 Ford F-150. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Ford F-150 based on all problems reported for the 2012 F-150.

1 Engine Failure problem

Failure Date: 10/18/2020

The 2011-2013 Ford F-150 eco boost is known to have timing chain stretch issues causing possible total engine failure. 25 months ago we spent $3,700 having cams and phasers and all chains repaired by a Ford certified dealer with Ford motor craft parts. Less than 1 month following the warranty of the work the secondary timing chain has failed leaving the vehicle useable while my wife was traveling down a gravel road and we are looking at another $3,700 repair plus a tow and inconvenience for a known and repeated problem and Ford will not stand behind these issues.

2 Engine Failure problem

Failure Date: 06/05/2019

While driving at 60mph the transmission shifted into first without warning, causing a sudden loss of control of the vehicle almost causing multiple accidents as I was in the middle of rush hour traffic. The sudden down shift over spun the motor, resulting in a lower engine knock which a certified Ford technician believes is the result of a bearing failure. Even though the technician performed a cylinder leakage test in which no indication of valve interference was identified, the Ford engineer he was dealing with said he had seen this issue before! this is the same recall issue that has caused multiple accidents! there are dozens of blog posts where this issue has caused, at the very least, multiple trips to the dealerships and in rare cases (not including mine), engine failure. I have calculated the engines rpm's using the formula: axle ratio x vehicle speed x transmission ratio x 336. 13) / tire diameter = engine speed. At the time of the incident, the engine's rpm's were at an estimated 9,074 rpm's [(3. 55 x 60mph x 4. 17 x 336. 13)/32. 9]. The tachometer only goes to 7,000 rpm�s! there are two recalls (19n01 and 19s07) that can cause intermittent shifting into first. The day before the incident, I went to the local Ford dealership and was told they couldn't get me in for recall fixes because they needed to "take care of their paying customers first. " I have talked with four different Ford customer service representatives, the answer has been the same; "there is nothing Ford motor company can do for you at this time. " I feel Ford has been very neglectful in taking responsibility of this issue, not only for myself but the countless other people that have had similar problems.

3 Engine Failure problem

Failure Date: 09/20/2018

Engine failure while driving on city street. 85,xxx miles on vehicle. I purchased vehicle new. Engine threw a rod. Oil spilled all over roadway. Research conducted shows this is a common problem with the ecoboost engine due to intercoolers or timing chain issues. Had there been another vehicle behind me, this could have resulted in a crash due to vehicle losing power with no warning.

4 Engine Failure problem

Failure Date: 04/06/2016

F-150 with ecoboost engine fails with hard acceleration in wet conditions. Fords fix is to install a new part due to a design defect that allows water to be ingested resulting in spark plug failure. On 4/17/2016 while attempting to merge on highway 57 the engine failed to power up and "bogging" down. This forced me on to the shoulder in order to avoid a collision with a 18 wheeler.

5 Engine Failure problem

Failure Date: 12/26/2014

This is the 2nd (and 3rd, 4th, 5th) instance of a problem I originally described in odi 10659481. Again, after traveling on the interstate for a few hours in very light rain, the engine failed to accelerate normally while merging into traffic from an on-ramp. This created a very hazardous situation, with traffic bearing down on us from behind at approximately 75 mph and steady traffic also in the left lanes. Unlike the earlier occurrence on oct 28, the truck did not shake violently and the check-engine light (cel) did not flash. However, the truck was noticeably vibrating and very slow to accelerate to highway speed. Because Ford had declined to make repairs after the first incident due to odb codes reportedly not being present, I had purchased my own odb-ii scan tool. Indeed, no codes were logged for this incident either. On Dec 28 I traveled 550 additional miles on interstate in steady rain. I tested the engine 3 separate times by attempting sustained hard acceleration. Each time the truck shook and failed to accelerate normally, the cel finally illuminated steady and misfire codes were logged p0304, p0305 and p0306. In summary, I have experienced this F-150 ecoboost engine failure five times, but odb codes were not logged on the first two when attempting real-world critical maneuvers. The codes were only logged during intentional testing for longer periods of time. I am confirming that this is the safety defect as described in Ford TSB 13-8-1 "3. 5l gtdi -â  intermittent stumble/misfire on acceleration from highway cruise in humid or damp conditions". It is particularly concerning that evidence of this defect is not always logged by the vehicle computer and customers are therefore being denied the prescribed repairs. It is also concerning that fuel mileage has been seriously impaired (about 3 mpg highway) since the first occurrence.

6 Engine Failure problem

Failure Date: 11/22/2013

I experienced a sudden loss of power in my 2012 Ford f150 super crew with ecoboost engine. . This happened 3 times on 11-22-13 at interstate speeds, I was unable to pass slower vehicles that were running below the posted speed limit. Each time I tried to accelerate past in the passing lane the vehicle shook violently and it was as though I had run out of fuel. As soon as I took my foot off the accelerator pedal the truck would run again. The 3rd time this happened a semi truck was barreling up behind me and there was a semi on the side of me, I noticed the semi beside me moving into my lane and tried to accelerate to get clear and the semi behind me almost ran me down as my vehicle lost power and I had to pull over. This time I had to shut off the engine and restart it for the vehicle to run right again. After the 3rd time my truck went from getting 18 mpg to 12. 3 mpg and ran rough as though it was cutting out. The weather was rainy and the vehicles ahead of me were throwing up quite a bit of moisture. I took the truck to the Ford dealer the next day 11-23-13 and they kept the truck for repairs. I am concerned as I and my wife could have very easily been killed of maimed yesterday because of this engine failure. If this happens to some family, they could have a fatal accident and I don't want that on my conscience. If this is a recurring problem maybe there should be a recall to fix these trucks. Thank you for your consideration.

7 Engine Failure problem

Failure Date: 06/06/2013

It is a new truck 2012 with about 650 miles when purchased. The first cold start the engine ran rough and had a slight miss. Told dealer said not to worry they could fix it. Went to ky on way back ran into a down pour of rain. The truck at about 40mph started to shake and quiver like it was going to quit . Got to the side of road to keep from getting hit from other vehicles. I have had it to the dealer numerous times they they cant fix it. I hope that no one gets hurt from this engine failure. The truck now has 4160 miles, it still idels rough and has miss. The dealer checked it out and still can't find the cause.




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F-150 Defect Investigations