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10.0

really awful
Crashes / Fires:
7 / 1
Injuries / Deaths:
1 / 0
Average Mileage:
53,525 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 24)

« Read the previous 20 complaints

problem #443

Jun 012022

F-150

  • miles

A D V E R T I S E M E N T S

Driving down the road at about 45mph. I was slowing down for a stop sign. The truck just accelerated with my foot on the brake. I had to press the brake harder and overcome the acceleration.

- Comanche, OK, USA

problem #442

Mar 012022

F-150

  • miles
Have had the vacuum pump replaced twice and it-€™s dead again causing brake failure, the timing chain stretch already cost me one engine and now a year later the chain has stretched again on the new motor not very happy about that and passenger air bag turns on and off randomly with no codes only a warning again for no reason.

- North Bay , AK, USA

problem #441

Mar 142022

F-150

  • 0 miles
The contact owns a 2011 Ford F-150. The contact stated while driving approximately 45 MPH, the vehicle lost motive power and stalled. The contact did not notice any warning lights illuminated. The contact pulled over safely and stopped and restarted the vehicle. The contact stated that the vehicle stalled again however, she was able to drive the vehicle to her residence. The contact stated that the vehicle was taken to an independent mechanic to be diagnosed. The contact was informed that the timing chain needed to be replaced. The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was unknown.

- Winfield, MO, USA

problem #440

Nov 012021

F-150

  • miles

A D V E R T I S E M E N T S

Exhaust manifold warping causing exhaust leak.

- Paris, KY, USA

problem #439

Feb 282022

F-150

  • miles
Timing chain stretching causing vehicle to stop on roadways until towed

- Ashland , OH, USA

problem #438

Jan 142022

F-150

  • miles
Vehicle locked up while driving on highway and almost caused crash. Vehicle had to be towed to dealership where they identified the issues as battery junction box fuse 27 crank no start, loss of RPM and/or malfunction indicator lamp (MIL)illumined with multiple dtcs. This is a known issues published on by the NHTSA article TSB 15-0137 -Part number EL3Z*14293 Kit terminal -Vehicle locked up while driving on highway -The dealership was able to locate the issue and fixed the know fuse terminal burnout causing failure. -Ford customer relations officer is aware of this and a complaint was placed in for KNOWN FAILURE TSB15-0137 -Multiple lights and warnings after attempting to restart vehicle Ford CASE NUMBER CAS-35065515-Q7C7H5

- Deltona, FL, USA

problem #437

Dec 092021

F-150

  • miles

A D V E R T I S E M E N T S

According to the dealership service center, the exhaust manifolds are the reason the turbochargers have failed. The exhaust manifolds are not covered by warranty, so they are declining to repair the turbochargers. I really like this truck, but I"m very disappointed with the warranty company. I also think it's shameful will go cheap and not fix it. Ford seems to do that from time to time.

- Warren, MI, USA

problem #436

Nov 302021

F-150

  • 290,000 miles
The contact owns a 2011 Ford F-150. The contact stated while attempting to reverse out of the driveway, the accelerator pedal was depressed however, the vehicle failed to respond. The vehicle was shifted to PARK, restarted, and shifted into drive, and operated as designed. The check engine warning light was illuminated. Several hours later that day after returning from the gas station, the vehicle lost motive power and stalled while approaching his residence. The contact attempted to restart the vehicle however, the vehicle failed to start. The vehicle was pushed onto the driveway and shifted into PARK. The contact performed a diagnostic test and retrieved a code for a defective transmission range sensor. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 290,000.

- Union Gap, WA, USA

problem #435

Dec 062021

F-150

  • miles
12/6-Driving car at 47 mph, abruptly slowed down, resulting in car throwing me forward with my head over the steering wheel. My chest was sore the next day from the seat belt. 12/7-googled issue/saw a recall existed. Called Capital Ford, Wilmington NC-explained issue in detail and concern for my safety. Advised to wait until 1/6 for warranty appt. Called back again-no openings. Called Burgaw Ford-no appts until later in January. Called Ford customer service. First Rep. placed me on hold and did not come back. Second rep.-explained, event details, she told me she would call me back after talking to the location. No call was ever received. 12/8-Called Capital Ford-explained-asked if there were any cancellations-told no and they never received cancellations. Called Ford customer service-Agent called all locations within 75 minutes of the area with no luck regarding appts except 1 avail. 70 mins away on 12/17. In every call I clearly communicated my concern for my safety. Advised, I have a required work trip this Sunday-Wed. in SC-so my car is needed. Pleaded for assistance getting my car fixed, a rental car or guidance on the reimbursement process if corrected by someone else. Uniform answers, Must wait until 1/6, no rental, no reimbursement. My assumption by Ford's actions is the car is safe to drive-despite my personal experience indicating otherwise. Unclear why all are so dismissive of the recall issue?

- Wilmington, NC, USA

problem #434

Sep 272021

F-150

  • miles
Warped exhaust manifolds

- Blairs Mills, PA, USA

problem #433

May 312021

F-150

  • miles

A D V E R T I S E M E N T S

On certain days, usually humid days, when you approach a hill and give it gas, a wrench appears on the display and the truck goes into Limp mode. It may go for weeks without doing this, but when it happens, you may get killed. Especially, if you are on a highway. You have no power to move the truck. You are a sitting duck. I took in to a service station and the cleaned the Throttle body, but it still happens. If you drive slowly without changing accelerator position the truck will drive but too slowly. It happens far too much.

- Pittsburgh, PA, USA

problem #432

Jun 282021

F-150

  • miles
I first noticed a rapid chirping sound from the engine when accelerating on a hill while pulling a trailer. The pickup had about 135,000 miles on it at the time. This was usually associated with an automatic downshift due to the load and the hill in order to maintain speed. The sound increased over a period of a year. Then I started noticing the sound when starting with a cold engine. The sound would diminish after the engine warmed a bit, but it didn't really disappear. I finally took this pickup to an auto clinic (Sequim Automobile Clinic, Sequim, WA) with 153,000 miles on it. The manager, Marv, later told me that they found the driver's side exhaust manifold warped. He said the noise was coming from a gap at the rear end of the manifold. He improved the condition by tightening bolts, but he said the only way to really make it right would be to replace the exhaust manifold. I went to YouTube and found videos of others with this problem. Their suggestion was to replace the exhaust manifold with one that was superior in design and construction in order to keep from having the problem, again. They indicated that the problem was due to heat generated by the engine and turbo chargers in this 3.5 L Ecoboost Ford engine. The manager at the auto clinic said he hadn't seen the problem from others with this engine, but the others weren't putting the engine under as much load as I am. I'm pulling a trailer of about 8500 pounds. I'm pulling it over passes about 5,000 feet in elevation and in a one month period traveling about 3,100 miles. The manufacturer rates this particular pickup to pull a trailer up to 11,500 pounds. I've also watched videos of major endurance testing by Ford that indicated no problems after over 150,000 miles of operation under grueling conditions. I don't know if there is a safety issue here, but I know of no other place to report it. Certainly the exhaust manifold should be able to handle the heat generated in normal operation.

- Sequim, WA, USA

problem #431

Feb 072018

F-150

  • 120,000 miles
Timing chain rattle on startup

- Keithsburg, IL, USA

problem #430

Jun 012020

F-150

  • 100,000 miles
The rr turn signal does not work at all. The rr brake light does not work at all. The rf turn signal flashes fast. The rf running light does not stay lit when using the remote to unlock the vehicle. I have checked all bulbs, that are fine, fuses fine. I should note, till it is fixed I can't get it inspected, and therefore can't get it registered.

- Forney, TX, USA

problem #429

Dec 272020

F-150

  • 105,000 miles
The most recent incident resulted in transmission having a harsh downshift to first gear causing vehicle to jerk and engine revs up. This has happened several times in the past including a few days before taking it in for the recall repair in 2019. ( recall 19V -075). This problem, according to Ford, is due to intermittent failure of the output speed sensor ( part of the molded leadframe in the transmission). Two latest incidents occurred on a city street. Have had at least one occasion on an expressway where vehicle had very jerky transmission shift while in cruise control. Have complained about this to Ford and took the vehicle in on two occasions ( see attached invoices). The problem has never been resolved and no warning messages or trouble codes have been found during the repairs. Ford issued an extended warranty coverage ( program # 19N01) on May 2019 and my vehicle still qualifies. I took the vehicle in this week to request they replace the molded leadframe since the problem is still present. They refuse to replace the part because they say no trouble codes are present. I have found others on Ford forums who say they have the same problem and they also have no trouble codes stored either. Ford needs to acknowledge that the lack of trouble codes does not ensure the problem is not present. I continue to have concerns that my family's safety and others is jeopardized by Ford not agreeing to take responsibility and making the necessary repairs. They themselves say in the recall notice that "this condition could result in a loss of vehicle control, increasing the risk of a crash."

- Houston, TX, USA

problem #428

Apr 012020

F-150

  • 130,000 miles
I have a 2011 Ford F-150. The timing chain has stretched abnormally, causing the mileage and power to be reduced, and causing the engine to make a terrible noise (akin to a diesel starting on a cold day) when it is started, lasting for 5-10 seconds. The 2011 F-150 3.5L ecoboost timing chain stretching problem is well-known across Ford user forums. There have been so many forum posts and complaints regarding this issue, yet Ford has not done anything to fix the issue. This is a systemic design issue and Ford needs to take ownership and provide a fix for owners that are affected by it.

- Phoenix, AZ, USA

problem #427

Oct 102020

F-150

  • 105,000 miles
While driving under a load, towing, especially up a mountain side or steep grade, the exhaust manifold started chirping, or letting out air, power was reduced, and the situation was very unsafe. Since then, power has been down, as has fuel economy. The ability to do work is gone.

- Roy, WA, USA

problem #426

Jul 042020

F-150

  • 117,500 miles
While driving the speedometer goes to zero. The odometer displays just dashes. The engine power is reduced significantly. I pull over and shut the engine off, remove the key and then restart the truck. Then it drives normally until the next time it happens.

- Mountain Home, AR, USA

problem #425

Jul 052020

F-150

  • miles
Power train auto transmission controls module reset has already been done to car. When accelerating from 50-75 the transmission shudders and jumps. When you go up hill it's impossible to accelerate at all without the transmission shuddering. Engine light blinks occasionally.

- Edmond, OK, USA

problem #424

Aug 012019

F-150

  • 150,000 miles
The contact owns a 2011 Ford F -150. The contact stated the check engine and service engine warning lights were illuminated. The vehicle was taken to autonation Ford gulf freeway (12227 gulf fwy, houston, tx 77034, (713) 489-2089) and informed they were unable to duplicate the failure. The vehicle was taken a second time to the dealer diagnosed. The contact was informed that the lead frame needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and informed of the failure however, no further assistance was provided. The failure mileage was 150,000.

- Palmsprings, TX, USA

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