really awful
Crashes / Fires:
3 / 1
Injuries / Deaths:
0 / 0
Average Mileage:
42,781 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 2 of 17)

« Read the previous 20 complaints

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

problem #310

Jun 012016


  • 136,713 miles


I noticed my 2011 Ford F-150 was running rough. I took it to the dealer and they diagnosed a cracked 3 cylinder head. In the beginning it was a blown 3rd cylinder head and was going to cost $5,000 to replace the cylinder and look at the rest of the engine. Ended up being a cracked cylinder. Now looking at a new engine to the tune of $8000. This has a 5.4 liter Triton engine with less than 137,000 miles on it. I bought it in 2013 with 500 miles on it. 90% of miles are highway. I expected to get at least 175,000 miles out of it. I remember hearing a loud pop while going down the road but thought it was a rock thrown up from a tire. The engine ran fine and I didn't notice anything. Until a few weeks later when it was running rough. I had the spark plugs changed at a little over a 100,000 miles as recommended. My belief is that the #3 spark plug blew causing the damage to the #3 cylinder.

- Worland, WY, USA

problem #309

Jun 012012


  • 20,000 miles
The contact owns a 2011 Ford F-150. While operating the vehicle, the transmission downshifted hard and the vehicle jerked without warning. The vehicle was taken to the dealer where the technician made adjustments to the transmission sensor, but the failure recurred. In addition, while driving various speeds, the vehicle shook and vibrated. The vehicle was taken to the dealer where it was diagnosed that the engine cylinder coil failed and the cylinder battery pack needed to be replaced. Eventually five of the six cylinder battery packs failed and were replaced. The manufacturer was notified of the failures. The failure mileage was 20,000. Updated 08/04/16

- Waynesville, NC, USA

problem #308

Jun 062011


  • 92,000 miles
I was driving and I had loss of power started misfiring shifting funny and I was almost killed by a large truck something needs to be done.

- Newnan, GA, USA

problem #307

May 312016


  • 112,000 miles
While trying to accelerate at high speeds, such as passing on an interstate or accelerating up an incline, the truck shudders violently and engine light flashes. If driver maintains speed, engine loses all power and engine light stays on. Loss of power at highway speeds is deadly. I was almost rear-ended while trying to accelerate up a hill in busy highway traffic. Truck shuddered and lost power for 5 seconds. The truck coasted until I could apply power again to the engine. Applying power caused more shuttering, but engine did not lose power again because I was closer to the top of the hill and not as much strain on the engine.

- New Market, AL, USA

problem #306

May 312016


  • 77,000 miles


The contact owns a 2011 Ford F-150. While driving approximately 70 mph, the transmission unexpectedly downshifted to first gear and the vehicle slowed down. The check engine light illuminated. The contact exited the highway, turned off the engine, and restarted the vehicle. The vehicle was taken to a local dealer who stated that there was a recall. The technician informed the contact that the part needed to be ordered and reprogrammed. The vehicle was repaired; however, the dealer billed the contact for the repairs, claiming that the repairs were not done through the normal recall process. The contact was assured that he would be reimbursed by the manufacturer. The manufacturer was made aware of the failure and confirmed that there was a recall, but stated that the reimbursement would not be issued until the fourth quarter. The failure mileage was 77,000.

- Yardley, PA, USA

problem #305

May 202016


  • 121,000 miles
The contact owns a 2011 Ford F-150. The contact stated that the vehicle shook violently. The contact heard an abnormal noise and experienced a complete loss of power. The vehicle was not operable. The check engine warning indicator illuminated. The vehicle was towed to the dealer where it was diagnosed that the camshaft failed, there were multiple cylinder failures, low compression, and the engine was no longer salvageable. The technician diagnosed that the engine needed to be replaced. Prior to the failure, the driveshaft was replaced. The manufacturer was notified of the failure. The failure mileage was approximately 121,000.

- Wakeman, OH, USA

problem #304

May 222016


  • 98,000 miles
When driving the truck (what seemed like) shifted hard then the wrench sign came up on the screen and throttle would not work. I was doing 50 mph at the time and had to hit the hazards and pull over. Once I turned off the engine and turned it back on it seemed ok, pulled the code P2112 throttle body. Looked online and many, many people have the same issue. Can't believe this isn't a recall seeing how dangerous this is.

- Round Rock, TX, USA

problem #303

May 082016


  • 84,000 miles
While traveling at highway speed I wanted to accelerate and pass someone. I pulled into the left lane and pressed the gas. The engine shook the truck and it loss power. I had to move back into the lane.

- Bellmawr, NJ, USA

problem #302

May 032016


  • 100,090 miles
The timing chain belt was skipping, it would cause the engine light to come on while driving but then the engine light would go off the next time I'd stay it. This did this for as long as I had it. I mentioned the issue tho the dealer but when in the garage the engine light was no longer on and they would tell me nothing was wrong and no error codes were coming up. I've had this truck only 1 year 7 months and it started stalling out. I brought it to the garage and it was the timing chain.

- Waterloo, NY, USA

problem #301

Apr 272016


  • miles
The engine (3.5L ecoboost) has a rattle in the front region when started and at lower RPM's which was followed by the check engine indicator (timing chain issue). When driving in the city the vehicle was stopped at a traffic light and started to shake violently. The shaking ceased upon accelerating. The vehicle was immediately driven to a mechanic where we learned that the vct unit (exhaust side) had separated and a piece of the internal component flew outward boring a hole through the valve cover. We do not know where the projectile ended (hopefully not into another vehicle or pedestrian). It was also found that the oil was so low (from the hole in the valve cover) that it did not register on the dip stick nor did the indication alert notify the driver in the instrument panel. We brought the vehicle to a local kendall Ford dealership for the rattle/misfire issue before the vct ruptured and they gave the truck a clean bill of health after the replacement of a spark plug on cylinder #2. the misfire occurred when we were driving on a long highway 60mph and started to shutter and shake which almost caused us to crash (it already has the cac tsb fix installed). NHTSA should re-open the investigation on that because the fix did not work. It may have improved it, but didn't fix the problem. We have contacted Ford on May 4th about this issue and the representative said there is no recalls or alerts concerning our vehicle and we would have to fix it out of pocket. We are currently trying to work something out with the dealer. However, this issue when searched appears to be a very common one and due to faulty parts, Ford should in good faith offer a recall because for this fix, like ours, is about $2000 conservatively. Our vehicle has about 121,000 miles on it.

- Oakridge, OR, USA

problem #300

Apr 172016


  • 60,650 miles
On wide open throttle engine misfires. Got it to set a code after another hard throttle.drove truck 1500 miles and got 21 mpg.after trip I took it to dealer codes PO300 0304 0305 0306.had tsb for problem done last June. Still has same problem.dealer states may be plugs. Doesn"T seem possible getting 21 mpg with bad plugs. They want 260 dollars to check plugs on one bank. Ford needs to get this problem with wide open throttle miss fixed before someone gets hurt or killed.tsb did not fix the problem. The newer trucks have a different innercooler system is the moisture causing bad spark plugs" what's going on here"

- Milwaukee, WI, USA

problem #299

Apr 062016


  • 60,000 miles
#1: driving down the interstate, attempting to pass a semi; vehicle lost power as I tried to accelerate and we had to coast to a stop. This has actually happened twice. The first time they replaced the intercooler and the second time I replaced the spark plugs. It occurred about three weeks after getting the vehicle it's regular service. If there was a problem with the gaps on the plugs, and they knew cars were losing power because of it, then they should have mentioned that at the service! #2: driving down the interstate and speedometer jumped around and went to zero. After I got off the highway, I lost power and had erratic shifting while trying to cross an intersection. There's a tsb out for this too!! why isn't there a recall if there's a defective part that creates dangerous situations!"!"

- Frisco, TX, USA

problem #298

Apr 032016


  • 83,000 miles
At 50 mph while accelerating in traffic the engine shook and I lost power. This only happens with the ecoboost engine. Ford told the NHTSA this was corrected and the suit was ended. Ford will not install this repair in my truck.

- Bellmawr, NJ, USA

problem #297

Mar 212016


  • 50,000 miles
The contact owns a 2011 Ford F-150. The contact stated that the instrument panel seized without warning. The failure was persistent. The engine stalled while the failure was occurring. The vehicle was able to restart. The vehicle was taken to a dealer where the failure could not be determined. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 50,000. The VIN was not available.

- Boynton Beach, FL, USA

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