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really awful
Crashes / Fires:
3 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
42,227 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.

2011 Ford F-150 engine problems

engine problem

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2011 Ford F-150 Owner Comments (Page 1 of 17)

problem #330

Nov 022016


  • 35,000 miles


The engine misfires and changes to "limp mode" after the engine shudders, shakes and looses power. This has happened twice in the life of this vehicle. Also the steering sticks when turning left.

- Burnsville, MN, USA

problem #329

Oct 042016

F-150 6-cyl

  • 61,000 miles
Just letting you know the stumble issues to these vehicles could be dangerous had it happen a week or so ago while towing. The power was totally gone at full throttle while passing a vehicle. What if I didn't have enough time. I just discovered all this information. As I am typing this my vehicle is in the shop getting the catalytic on the driver side (bank one) replaced and a re-flash, as it threw the P0430 dtc. Again it was a drastic power loss at full throttle, when throttle released regular operation occurred. "you try letting off the throttle while in the middle of a pass, I didn't". and by the way I was a mechanic most of my working days. Just because people don't report it doesn't mean it doesn't exist. In my opinion there are a lot more of them out there with the same problem, just google it and you will see many. Thank you

- Casper, WY, USA

problem #328

Sep 012016


  • 130,000 miles
The contact owns a 2011 Ford F-150. While driving various speeds and slowing down, the rear of the vehicle jerked without warning. The vehicle was taken to a dealer where it was diagnosed, but not repaired. The results of the diagnostic were unknown. The manufacturer was not notified of the failure. The failure mileage was 130,000.

- Sioux City, IA, USA

problem #327

Oct 072016


  • 47,500 miles


On hard acceleration like when entering a highway or trying to pass another car it will miss fire continuously thru the acceleration 60-70 mph.shaking violently and check engine light blinking throwing P0300 codes for misfiring at 47,000 miles changed all spark plugs / coil packs / wires / air filter / 48,000 still misfiring

- Denham Springs, LA, USA

problem #326

Sep 012016


  • 80,000 miles
2011 F150 connecting rods broke at normal highway speed beating a hole in block oil is all pumped out of motor coverimg the windshield of cars behind me one was 80000 the second was only 60000.

- Crossville, TN, USA

problem #325

May 142016


  • miles
Takata recall there is a cold start noise kinda sounds like a grinding noise also have a huge power loss when ever trying to accelerate. I get codes P0016 P0017 P0299. I have changed all came and crank sensors.

- Taylor, MI, USA

problem #324

Jul 012016


  • 67,000 miles


The engine on my 2011 ecoboost 3.5 L V6 Ford F150 shudders and stalls when you try and accelerate. The problem is sporadic. The truck has 67,000 miles and has stalled out when I was trying to accelerate into busy intersections or making turns at least three times and has happened while driving on the interstate four times. It was quite scary and extremely dangerous. The dealership says that the issue is my truck and not a Ford problem, though this is clearly something that has occurred in countless 2011 ecoboost F150 engines as it is all over the internet. This engine should be investigated by your organization and the vehicles should have been recalled. Below is a link with thousands of complaints that are all the same. two dealerships suggested I replace the engine at a cost of $12,000 to me. Currently, the car is not driveable.

- Austin, TX, USA

problem #323

Sep 022016


  • 97,000 miles
While traveling on the highway in the rain the truck began to shutter and loose power during acceleration. A few days later in sunny weather it was fine with no problems accelerating. Looks like from reading on the NHTSA site this is a turbo issue that occurs during humid or wet weather. Since Ford is aware what will they be doing to solve the issue?

- Fort Mill, SC, USA

problem #322

Aug 122016


  • 78,000 miles
Vehicle loses power and misfires when accelerating especially at 50mph or higher. Recurring problem over the years. Mostly an issue when passing on two-lane highway. Extremely dangerous.

- Stillwater, MN, USA

problem #321

Jul 032016


  • 54,000 miles
On hard acceleration like when entering a highway or trying to pass another car it will miss fire continuously thru the acceleration.on several ocasions it down shifts and then the engine loses power.this has happined meany times in the last 2 to 3 years.

- Shelby Twp., MI, USA

problem #320

Dec 012015


  • 88,000 miles


The contact owns a 2011 Ford F-150. While driving approximately 50 mph attempting to pass a tractor trailer, the engine misfired and the vehicle would not properly accelerate. During the incident, the check engine light illuminated. The vehicle was taken to the dealer where the spark plugs were replaced, but the failure recurred. The manufacturer was notified of the failure. The failure mileage was 88,000.

- Cincinnatti, OH, USA

problem #319

Aug 152016


  • 75,000 miles
While accelerating onto the highway truck began shaking violently and lost power. I was towing a trailer at the time and was nearly struck by a large truck because I couldn't get up to speed or off the highway because of loss of power. This is a known problem with 3.5 liter ecoboost engines and it is only a matter of time before someone is seriously injured or killed because this issue has not been successfully addressed by Ford.

- North Canton, OH, USA

problem #318

Aug 102016


  • 61,300 miles
Since I've owned this vehicle new, I've had a number of problems related to acceleration. Vehicle would almost stall on hard acceleration when getting on the freeway. Dealer replaced spark plugs & boots, but condition was not completely resolved. Vehicle would still on occasion repeat the same problem. More recently when driving yesterday, the engine light started blinking, then became steady. Of greater concerned I got an engine light & poor acceleration. Took the vehicle to the dealer & dealer is telling me that the timing belt needs to be replaced at a cost of $2000+. vehicle had just turned 61000 miles. Dealer service agent tells me its not uncommon and could be caused by not getting the oil changed at recommended intervals. Vehicle has had regular oil changes at the dealer & other service facilities. Never heard of this & I think it's premature for a vehicle with 61000 miles to need the timing belt replaced. Never had this happen in 45+ years of driving.

- Northville, MI, USA

problem #317

Jul 302016


  • 10 miles
While driving on hwy when acceleration the vehicle looses power and I had to pull over and shut off the engine and re-start it, almost causing an accident. Then when driving on normal road conditions and accelerate the vehicle to pass, and the same thing happens, the engine miss fires, looses power and the check engine light is on since the first time it happened. Took the truck to the Ford dealer and they said it was "an ongoing problem with the ecoboost and the air charge cooler". they said the fix is to put a intercooler deflector (piece of plastic over the intercooler), change the spark plugs and do a vehicle software update witch is going to cost around $700 to fix. Outrageous cost for a tune up and a piece of plastic for something they know its a "ongoing problem" and don't want to have a recall. This is a safety issue, and they know about it but since the vehicle is out of warrantee I have to deal with it. Wonder how many others have this issue?! this is definitely the only and last Ford I will buy. This does not guarantees that its going to stop it from happening again. With this amount of money I could buy an aftermarket intercooler, do a complete tune up and still have money left.

- Byron, GA, USA

problem #316

May 012016


  • 86,000 miles
The contact owns a 2011 Ford F-150. The contact stated that while driving at various speeds, the accelerator pedal was depressed but the vehicle lost power. In addition, the check engine warning light illuminated. The failure recurred on numerous occasions. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 86,000.

- Newhall, WV, USA

problem #315

Apr 152014


  • 49,502 miles
The contact owns a 2011 Ford F-150. While driving 65 mph, the engine stalled. The check engine light illuminated when the accelerator pedal was depressed. The vehicle was taken to a dealer where it was diagnosed that the spark plugs failed and needed to be replaced. The vehicle was repaired; however, the failure recurred numerous times. The manufacturer was not notified of the failure. The failure mileage was approximately 49,502.

- Exceisior Springs, MO, USA

problem #314

Jun 262016


  • 58,000 miles
While driving on interstate, check engine light came on and engine began to shudder very violently while losing power. Was traveling approx. 70mph

- Douglas, WY, USA

problem #313

Jun 302014


  • 40,000 miles
The contact owns a 2011 Ford F-150. While driving 45 mph, the vehicle lost power, came to a complete stop, and the rear wheels locked up. In addition, when the accelerator pedal was depressed, the vehicle failed to accelerate. In addition, the steering wheel completely seized and the rpms increased. Multiple warning lights illuminated. The failures recurred numerous times. The vehicle was taken to an independent mechanic who was unable to diagnose or repair the vehicle. The VIN was included in NHTSA campaign number: 16V248000 (power train); however, the part needed to repair the vehicle was unavailable. The manufacturer was notified of the failures. The failure mileage was 40,000. VIN tool confirms parts not available.

- Coral Gables, FL, USA

problem #312

Apr 102016


  • 97,000 miles
Thousands of Ford F150 owners (20011-2015) bave experiencing with ecoboost engines mostly with my most recent issue "timing chain stretching chain" and faulty cam phasers, I believe we deserve to at least get our vehicles fix. I struggle paying my truck and I cant pay 4000 dlls to fix this issue that I strongly believe is a Ford's negligence. Please help us my name is manuel favela 915-7317818

- El Paso, TX, USA

problem #311

May 152013


  • 120,000 miles
The contact owns a 2011 Ford F-150. While driving at any speed, the vehicle shook, lost power, and slowed down without warning when the accelerator pedal was depressed. The engine warning light illuminated. The contact stated there was a recall and the vehicle was repaired; however, the failure recurred. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The recall information was unknown. The failure mileage was approximately 120,000.

- Maceo, KY, USA

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