really awful
Crashes / Fires:
4 / 3
Injuries / Deaths:
0 / 0
Average Mileage:
22,205 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2012 Ford F-150 engine problems

engine problem

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2012 Ford F-150 Owner Comments (Page 1 of 17)

problem #330

Dec 222016


  • 54,200 miles


While driving on the highway I experienced severe reduced engine power during a hard acceleration for an attempted pass. Upon completion of a diagnostic, I was told there was a misfire in cylinders 1-3. the technician informed us the circumstances and results were hallmark for a known condition related to moisture accumulation in the charge air cooler (cac) for turbochargers in 3.5L ecoboost engines of my model year. The vehicle had just over 54K miles on it at the time of the incident (typical mileage for the problem to manifest). The vehicle was maintenanced one week after the incident at the dealership I purchased it new from. The dealership cited the cause of the misfire as bad coil packs - 4 of them at the time of arrival. Coil packs typically have a lifespan of 100-150K miles before failure. However, 4 of them went bad (3 simultaneously) in a vehicle with <55K miles on it. Literature posted about others/similar situations read the same - bad coil packs, due to ingestion of water into the turbo. An issue Ford was aware would happen without the deflector plate due to design flaw! no alert to the owners that it was a potential concern, bring the vehicle in for a check - no word at all! if there was a known problem with their turbo design leading to compounding premature failure, why wouldn't they let the owners know" the dealership would have had ample opportunity to inform me of the issue if that was their intention as I visit regularly. The call center rep said they don't have to tell us anything unless there is a recall. So basically they manufacture dangerous/problematic vehicles until NHTSA slaps their hand about it!" I surely hope everyone who has this issue is reporting it to NHTSA but I doubt they know it is an option and Ford is profiting from having additional maintenance performed at their dealerships.

- San Antonio, TX, USA

problem #329

Jan 142017


  • 68,000 miles
In warm weather the truck suddenly shakes and downshifts to first gear no matter what speed you are going. The speedometer stops working, a wrench is displayed on dash sometimes. The speed after doing this does not exceed 20-25 mph. If we can safely get to the shoulder of the road and turn truck off and restart it everything resets. This happens atleast once daily, sometimes more than once daily. It always happens when truck is in motion. It does not matter what speed as it has happens at different speeds and on one occasion when I was in the process of stopping for a red light. The last occurrence happened today, but it has been happening for several months. When it is cold outside it does happen less, maybe once weekly instead of multiple times daily when the weather is warm outside.

- Branch, LA, USA

problem #328

Jan 012017


  • 61,000 miles
Under aceleration in heavy traffic in damp weather conditions, truck engine misfired and totally stalled-out causing major traffic jam. Has happened twice. Engine acted as if there was water in the fuel system.... has misfired several times in damp or wet highway conditions.

- Grayson, KY, USA

problem #327

Nov 222016


  • 1 miles


The vehicle was purchased used from a dealership with 95,000 miles. At 115,000 miles the vehicle exhibited a rattling sound at startup and was taken to a mechanic. The mechanic noted the problem was with the tming chain and Ford had issued tsb 14-0194. He advised it should be addressed by a Ford dealer. The Ford dealer inspected and agreed with the diagnosis, primary timing chain wear, and provided an estimate of $2,200 for the repairs. Shocked by the need for a major engine repair at this mileage, a complaint was issued to Ford Corp. They responded through the dealership offering nothing. The dealership's service consultant noted the vehicles service records indicate the timing chain had already been replaced under warranty. Further research indicates this is a common and recurring problem for this model year. I expect a recall to be issued.

- Cedar Grove, WI, USA

problem #326

Nov 232016


  • 71,100 miles
The truck suddenly decelerated and a warning light came on. The first time I was on a residential street and went from 25 to 2 mph w/O any other traffic. The second time it was on a state highway and we went from 45 to 2 mph with traffic behind us. The dealer said the throttle body needed to be replaced because of a bad sensor. This is apparently a known issue on 2015/2016 model years, but not on 2012's. the dealer said it is the same problem and Ford has recalled newer trucks because of it.

- Kansas City, MO, USA

problem #325

Oct 142016


  • 51,853 miles
In heavy rain conditions after driving for 2 hours in the pacific northwest on the I-5 the truck ecoboost turbo stalled and lost power during a passing situation of a large 18 wheeler. I was driving at 60 mph, and attempted a pass, but was unable to pass due to power loss, shudder, and limp mode. Intermittent check engine light and partial limp mode occurred. This is the known stall/shudder issue that multiple ecoboost motors on F150S are experiencing in rainy damp conditions. Severe safety issue if you are trying to pass on a two lane highway and you lose power while trying to pass a logging truck and someone follows you and you get only half way. This is the second incident I have had with this truck. Dealer did a tsb that involved reprogramming the PCM and removing a deflector shield. This fix seems like a band aid, and Ford should be doing a complete redesign of the turbo cooler intake.

- Gig Harbor, WA, USA

problem #324

Sep 292013


  • 15,352 miles


In heavy rain conditions after driving for 2 hours in the pacific northwest here in the state of Washington, the truck ecoboost turbo stalled and lost power during an acceleration onto a freeway on ramp. Intermittent check engine light and partial limp mode occurred. Dealer misdiagnosed the problem as a loose connection when in fact it was the known stall/shudder issue that multiple ecoboost motors on F150S are experiencing in rainy damp conditions. Severe safety issue if you are trying to pass on a two lane highway and you lose power while trying to pass.

- Gig Harbor, WA, USA

problem #323

Nov 042016


  • 30,000 miles
On Friday November 4/2016 at approximately 2:00 pm I was traveling West bound on highway 401 in my 2012 Ford pick up (vin1ftfx1cfocfc04553) towing a boat when my truck lost all power and stalled. It was all I could do to safely get my vehicle to the shoulder and this was only due to the fact that I was traveling in the right lane at the time. I did not feel safe on the side of the road where I was and tried several times to start the truck and drive up the road to an off ramp to exit the highway but the truck would only start and immediately stall. Apparently, a very tiny spider had been pulled into the mass air sensor and this somehow killed my truck and almost me.how does Ford allow a sensor like this to completely shut down a vehicle and what is or has Ford done about such a obvious dangerous safety issue here that can clearly cause serious injury or death?

- Florida, FL, USA

problem #322

Sep 242016


  • miles
Loss of power under hard acceleration, undiagnosed misfire at all speeds. These problems occur in dry and wet conditions. The truck lost power on the interstate twice and I had to pull over and shut it down then restart to continue (around 20K miles). This occurred while under warranty, dealer said they couldn't do anything because there was no sel activated. As mileage had increased, misfire are worsening even after water is removed from air cooler and spark plugs replaced. My truck was at a dealer for 3 days and they told me they did not know what was wrong. Normally changing the plugs and cleaning out the air cooler fixes the problems for a while until now. I have even replaced a coil because it is throwing a code for #1 cylinder not firing. The new coil made no difference. The vehicle has 133,000 miles and is almost not drivable it has gotten so bad. I have submitted my complaint to Ford customer service as well.

- Dalton, GA, USA

problem #321

Sep 232016


  • 137,919 miles
The contact owns a 2012 Ford F-150. While driving approximately 60 mph, the vehicle decelerated to 40 mph and shook violently. The contact had to maneuver the vehicle to the side of the road to a complete stop. The engine was shut off and restarted in order for the vehicle to return to normal. The failure occurred at least 30 times within the past year. The vehicle was taken twice to independent mechanics and one time to the dealer. The failure could not be duplicated. The vehicle was not repaired. The approximate failure mileage was 137,919.

- Gardendale, AL, USA

problem #320

Sep 132016


  • miles


Truck looses power under hard acceleration. I have had it in two other times with the same issue and it was diagnosed that the spark plugs had cracked. I have it scheduled to go back in later this week again. I'm guessing the plugs cracked again. I've been given no answers as to why this is happening.

- Maple Grove, MN, USA

problem #319

Dec 172015


  • 82,000 miles
The contact owns a 2012 Ford F-150. The contact stated that there was a burning odor under the hood of the vehicle. The contact looked and found that the cables connected to the battery were burning. The contact took the vehicle to the dealer where it was diagnosed that the battery caused excessive battery corrosion and ate through the positive battery cable. The vehicle's motor also failed. The motor, battery, and battery cables needed to be replaced. The manufacturer stated that the power train was covered under warranty; however, the other repairs were not. The approximate failure mileage was 82,000.

- Valdosta, GA, USA

problem #318

Aug 052016


  • 72,000 miles
My F150 is constantly experiencing the exact dangerous malfunction that safety recall 16S19 describes. Ford is not providing any rental assistance and currently does not know when a solution will be available. My transmission will have issues shifting to the next gear, rev up way farther than necessary to shift and then stall. I have to turn off my truck and turn it back on several times to get rid of the issue just to get me to my destination. This occurs on 50% of my drives around the city. I will not dare take it further than 10 miles in fear that I might be stranded and forced to pay for towing. Ford has also told me I must prove something is wrong with my vehicle to even apply for a rental. My local Ford service is not able to find anything wrong besides the exact issue I'm describing. It's a pandora's box, built to put the consumer in the worst position risking injury or death driving a faulty vehicle or paying the bill for a rental.

- Beaumont, TX, USA

problem #317

Aug 182016


  • 64,000 miles
The contact owns a 2012 Ford F-150. While driving approximately 50 mph, the contact felt oil dripping underneath the dashboard without warning. The dealer was in the process of diagnosing the vehicle. The manufacturer was not made aware of the failure. The failure mileage was 64,000. The VIN was not provided.

- Grand Saline, TX, USA

problem #316

Jul 282016


  • 85,000 miles
For the second time since owning the vehicle, we have gotten a service code of P0019, and during the time of the engine light being on, we experienced severe loss of power, to the point had to pull off of the side road, after a few minutes, restarted vehicle, it was able to resume. Took to dealer, they said no problem, because it was under warranty. Now, fast forward another two years, and 80,000 miles, with no more warranty, same issue has happened, major loss of power while accelerating and causing the entire truck to vibrate, this time, engine light is on and code P0018 and P0019, back to the Ford dealer, they made me change the turbo sensors, charged me $900 and still the problem exists. Now they want to change the cam shafts and timing chain guides, charge me another $2,400, and will not guarantee the issue will be resolved. There must be something going on here that an engine cannot last more than 85,000 before needing major engine work. Now I find there are several complaints as it relates to the ecoboost engine, and Ford is unwilling to stand behind their poor quality product and that built Ford tough means only during the 36,000 mile warranty. Amazing that a $40,000 vehicle, can't even make it to 100,000 miles.

- Fulton, NY, USA

problem #315

Jun 012016


  • 15,000 miles
2012 F-150 ecoboost with 55K miles. Sever loss of power and missing during idle and acceleration. The issue started at 15K miles and after a lot of pushing, Ford installed the deflector shield for water. That solve the problem for heavy rain, but the missing, lack of power, and poor mileage has persisted and is getting worse. The issue happens when the vehicle is in park, stationary in drive, and while under power. It is really bad when it is under heavy power. This is dangerous when it comes to merging into traffic and loosing power all of the sudden. It seems to be worse when it is hot and/or hot and humid out.

- Thornton, CO, USA

problem #314

Jun 152015


  • 52,350 miles
The contact owns a 2012 Ford F-150. While driving 55 mph, the vehicle lost power during acceleration and the check engine warning indicator illuminated. The vehicle was taken to a dealer where it was diagnosed that the spark plugs needed to be replaced. The vehicle was repaired. The manufacturer was notified of the failure. The VIN was invalid. The failure mileage was 52,350.

- Battle Creek, MI, USA

problem #313

Oct 312015


  • 25,000 miles
The contact owns a 2012 Ford F-150. While driving approximately 65 mph, the accelerator pedal was depressed; however, the vehicle misfired and the rpms increased. The check engine warning light illuminated. The vehicle was taken to the dealer where it was diagnosed that the charge air cooler and the catalytic converter needed to be replaced. The vehicle was partially repaired. The manufacturer was notified of the failure. The approximate failure mileage was 25,000.

- Clarksville, TN, USA

problem #312

May 082016


  • 29,000 miles
F150 2012 in traffic engine dies goes into the limp home mode which is under 5 mph engine will restart but you have to come to complete stop put in park and start and your good to go until it happens again and it will. Not at all safe does it on the freeway or city driving no warning just dies.had to dealership numerous before it was discovered it was a bad throttle replaced at my expense

- Williams Bay, WI, USA

problem #311

Jun 072016


  • 75,000 miles
The vehicle will lose power and begin to shudder. Cold starts it will shudder and RPM will bounce from 400 to 1100. Will lose power in turns and while stopped. Dealer has had the vehicle 3 times and cannot find a problem.

- Gunter, TX, USA

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