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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 11 of 17)

« Read the previous 20 complaints

problem #130

Nov 022011


  • 15,000 miles


The contact owns a 2011 Ford F-150. The contact stated that while driving 10 mph, the vehicle stalled as the check engine warning lamp illuminated. The vehicle was taken to the dealer however, the technician was unable to diagnose the failure. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 15,000 and the current mileage was 40,000.

- Townsend, DE, USA

problem #129

Oct 182013


  • 39,000 miles
While in wet conditions truck will stall, loose power, and shutter. While driving up a hill on busy interstate the truck stalled. Had to take foot off accelerator to get the truck to go. We were almost rear ended because of this. This has happened many times!

- Marshfield, MO, USA

problem #128

Dec 082012

F-150 6-cyl

  • 3,000 miles
While driving, rear wheels lock up for a few seconds, then truck shakes and has no acceleration power. This is happening at least once weekly now with loss of power lasting from 10 to 45 seconds. Not safe when in traffic. Local dealer says they can't find anything wrong and that they have no tsb on it.

- Millstadt, IL, USA

problem #127

Jan 252013

F-150 6-cyl

  • 32,259 miles


Repeated misfires, and loss of power when accelerating, engine lights flashes. This has happened 2 additional times since the first incident. The last 2 times I narrowly avoided accidents at highway speeds. The inter-cooler has been replaced and now they say I need plugs. I need help to fix this problem.

- Somers, CT, USA

problem #126

Jun 212011

F-150 6-cyl

  • 5,000 miles
While merging onto the highway, the truck shuddered violently and slowed to about 10 mph. I released the throttle and gently reapplied it and it ran fine. I took it to dealer and they couldn't replicate it. The event has happened since, but check engine light doesn't stay on, so Ford unwilling to do anything about it.

- Oxford, OH, USA

problem #125

Feb 082012

F-150 6-cyl

  • 20,000 miles
Rainy day traveling on highway 19 near crockett, Texas. Tried to pass slow moving vehicle and engine stalled, check engine light came on and started missing. Lost power and I was forced on the side of the road to avoid collision. Took truck to dealer and he installed a small plate over inter cooler. Several months later while passing on a humid day same thing occurred with same results. Pulled to side of road because I could not get back into my lane due to other cars. Took back to Ford in October, 2013 and they installed another plate on bottom of intercooler and reprogrammed the computer. I have no faith in the repairs and will probably never try a pass in any humid or wet weather.

- Montgomery, TX, USA

problem #124

Aug 082013

F-150 6-cyl

  • 25,000 miles


While traveling a two lane hwy, on rt 81 from Tennessee to Virginia in the early hours of the morning, we were pulling our 24 foot camping trailer, we were behind a tt unit and there was a tt unit behind us, we were all attempting to pass a slower mv in the right hand lane, when I tried to accelerate the truck shuddered and the engine completely went limp, the engine light came on and we were barley able to make it to the side of the road, and prevent an accident, . when we did get to the side of the road the engine light continued to flash and the truck was not running..

- Millbury , MA, USA

problem #123

Nov 012011

F-150 6-cyl

  • 900 miles
Vehicle experienced hesitation when trying to accelerate. Vehicle experiences jerkiness and at times complete power loss when trying to accelerate. Vehicle lurches and hesitates when trying to maintain speed going up hills, or when trying to accelerate like when passing a car or on an interstate on ramp. Issues have been reported to Ford numerous times over past 2yrs, several various excuses provided and an occasional 'attempt' at fixing, with no remedy. Most recent event (Sep 2013) involved a near crash due to vehicle rapidly losing power in busy traffic. Other incidents in the past have included stalling in the middle of an intersection when trying to accelerate from a full stop and nearly losing control when pulling a boat/trailer and the vehicle began to lurch/jerk when going up hills.

- Van Meter, IA, USA

problem #122

Oct 052011

F-150 6-cyl

  • 800 miles
During passing or pulling out in traffic the truck will loose power and misfire this is dangerous because you never know when it will do it. This weekend I was pulling a camper in the rain and it done it five times you have to pull over on the highway and start over when there is no one in sight and also try stopping on the interstate in the rain and pray no one hits you with your family in the vehicle. And this truck has been to the dealer fifteen times for repairs with only 15,000 miles on it.

- Thibodaux , LA, USA

problem #121

Sep 292013

F-150 6-cyl

  • 49,700 miles
The vehicle experienced a rough idle then upon acceleration, severe shuddering and lack of power. Check engine light turned on and began flashing. Vehicle is equipped with a 3.5L gtdi engine. Vehicle then continued to experience complete lack of power and shudder while being driven to the dealership.

- Corona, CA, USA

problem #120

Sep 262013


  • 40,000 miles


The contact owns a 2011 Ford F-150. The contact stated that while driving 62 mph, the vehicle began to shake violently and decrease speed. The check engine light illuminated simultaneously. The vehicle was not taken for inspection or repair. The manufacturer was not notified of the failure. The VIN was unavailable. The approximate failure mileage was 40,000.

- Laurens, SC, USA

problem #119

Sep 202013


  • 48,500 miles
Departed eureka, ca at 1600 in heavy rain on Friday September 20, 2013. Eureka to redding ca on highway 299. Rain was heavy for about 100 miles northbound on highway 299. At about the 100 mile mark, I attempted to pass another vehicle (sudden acceleration) when the engine began to rapidly lose power and the truck started to shake violently and shudder. The engine light on the dash began to flash. At first I thought it was a flat tire. Because I was in "the middle of nowhere" I continued on towards weaverville. I was climbing a steep hill, slowly and the truck continued to shake and shudder for about 6 miles until I got to the top of Oregon hill (summit). When I reached the top, I put the truck in neutral and carefully coasted down the hill. Within 2 miles (of coasting and the road is dry now) the flashing engine light went off and the truck appeared to return to normal operation. After this, I continued my travel to reno, Nevada and had no further problems. The truck is running fine right now.

- Reno, NV, USA

problem #118

Apr 282013

F-150 4WD 6-cyl

  • 21,025 miles
As we were driving through lexington Kentucky on rt 75 North, towing our enclosed car trailer with our mustang inside. It was raining pretty hard and there were 4 lanes of traffic on a rather steep grade, the truck went into limp mode as we attempted to change lanes on the freeway to allow traffic to merge from an on ramp. I had just read about a few incidents where this same thing had happened to others before we had left on this trip. The truck dropped to about 30 miles per hour, I had to maneuver to the right shoulder in heavy traffic towing a 20' long trailer in a heavy rain storm. We stopped the truck, shut it off, as described in the forums I had read about this same problem, and let it set for about 15 minutes. It restarted fine and ran good the rest of the way back to Ohio. When we returned home I took the truck into the dealership we purchased it from and they said because the computer showed no codes there was nothing wrong with the truck, I was prepared for that with the articles that I had read and I said fix it or I'll file a suit against the dealership and Ford! the mileage had dropped from about 16-17 mpg in the city to about 11 mpg in the city, it took them supposedly until August to "get the parts in" so far it's been fine but I haven't had an opportunity to duplicate the situation again.

- Stow, OH, USA

problem #117

Oct 152012


  • 30,000 miles
Dozens of incidents of misfire and loss of power upon acceleration sometimes resulting in severe shaking and flashing of engine light. Has nearly caused accident on 2 occasions where I was unable to maneuver through traffic. In shop 3 times, first 2 times technicians supposedly could not replicate problem (very easy to replicate if trying to do it). Most recently advised that I might need a "tune-up" and oil change. 2 different service centers refuse to acknowledge a known problem despite a flood of postings on internet forums describing the exact same issue.

- Waxahachie, TX, USA

problem #116

Jan 162013


  • 29,000 miles
The contact owns a 2011 Ford F-150. The contact stated while driving various speeds there was a reduction in the engine power with an illumination of the warning indicator. The vehicle failed to accelerate over 30 mph. The failure recurred repeatedly over time. The vehicle was taken to an authorized dealer numerous times; however, they were unable to duplicate or remedy the failure. The manufacturer was notified of the defect. The approximate failure mileage was 29,000.

- Estacata, OR, USA

problem #115

Sep 092013

F-150 6-cyl

  • 30,000 miles
Truck frequently goes into limp mode/stalls. This has happened at various speeds, times, terrain, etc all over the country both with and without our camper attached and both with and without tow-haul engaged. I've taken it to the dealer numerous times and each time they've updated the software according to some tsb that's been released. I've had the deflector put on, cam changed, and now they're replacing the throttle body.

- Livonia, MI, USA

problem #114

Aug 012013


  • 58,000 miles
Engine misses at times of hard acceleration. Engine ecoboost.

- Gravette, AR, USA

problem #113

Jul 312013


  • 38,578 miles
Attempted to pass a car. Speed at time of attempt was 55mph. Time 2:20 P.M. and partly cloudy. Two lane road but had plenty of time to pass or an accident could have occurred. Pushed down on accelerator and the engine actually decreased speed/significant deceleration. I let up on gas pedal, maintained speed then was gradually able to pass. Think the turbo had stalled. This had happened once before, shortly after I purchased the truck. At that time I was merging onto interstate and it stalled out, for a shorter duration. After the July 31 incident, I took the truck to Ford to inquire about the issues some owners have had on the eco boast engine, which I have. No codes appeared so I was told they couldn't do anything. Then talked to regional customer service and got the same story. I am very concerned as I use the truck to tow a 26' trailer. When the eco boast turbo works, I have plenty of power to merge or pass. The above experience was scary and I did not have the trailer behind me at the time. Now I feel I can not reasonably depend on it to work as it should. I think it is the turbo but it could be the electronic gas pedal, or the transmission but I really do not think these are the issue. Please help! thank you.

- Kalamazoo, MI, USA

problem #112

Sep 052013


  • 69,100 miles
While accelerating to 75mph or so, up slight hill from 65-70 mph went to pass a vehicle then truck lost vast majority of power even with all the way down and began to violently shake. Could have easily cause accident since wasn't abble to accelerate as planned to match speed of other lane. Check engine light came on. Truck continued to shake violently off and on for next mile before stopping. Problem is still ongoing under any moderate acceleration that goes over ~2000 RPM

- Lake Forest, CA, USA

problem #111

Jul 172013


  • 15,800 miles
On several occasions and more frequently as of lately, I am losing acceleration capability when I am trying to accelerate at any speed. When I try to accelerate from a stop or uphill, I feel like the engine won't go or is bogging down. To try and compensate, I try to accelerate more which only seems to make the problem worse. I have already taken it to the Ford dealer and they replaced a part on the transmission, but the problem still persists and is only get more frequent.

- Prescott, AZ, USA

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