Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


really awful
Crashes / Fires:
1 / 2
Injuries / Deaths:
0 / 0
Average Mileage:
48,918 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 drivetrain problems

drivetrain problem

Find something helpful? Spread the word.
Get notified about new defects, investigations, recalls & lawsuits for the 2011 Ford F-150:

Unsubscribe any time. We don't sell/share your email.

2011 Ford F-150 Owner Comments (Page 10 of 11)

« Read the previous 20 complaints

problem #23

Jan 012012


  • 1,000 miles


The vehicle just doesn't accelerate without hesitating.

- Minot, ND, USA

problem #22

Oct 212011


  • 906 miles
I have a Ford 2011 FX4 ecoboost. Whole truck started shuddering as I was getting onto the southwest freeway. Check engine light was flashing and vehicle had loss of power. Was able to coast and drive slow to the next exit where I pulled into a gas station and turned the engine off. I started the truck again and it seemed ok but the shuddering happened again on the way home and this time the check engine light stayed on. Took it to the dealership where the code was pulled and they replaced the catalytic converter. Same thing happened to me (shuddering and loss of power) again at 30K miles 3/4/2013 where this time they replaced a ignition coil and spark plug. And a third time at 34K miles 4/27/2013 and it is back in the shop today. When this happens it is very dangerous driving on the freeway when you cannot get the truck to drive without shuddering and jerking anytime you give it gas. Something needs to be done before anyone gets hurt. The dealership so far has been fixing whatever the code states, however there is a underlying condition that is causing this to happen that needs to be addressed.

- Spring, TX, USA

problem #21

Feb 232012

F-150 6-cyl

  • 2,500 miles
I was driving along hwy 95 in Georgia for several hours early one morning. I went to pass a semi and lost all power. The truck rpms jumped up while the transmission down shifted to 4th gear but the truck did not accelerate. I had to get back into my lane in an abrupt way causing traffic to re-act and allow me back in. This has happened almost a dozen times since then. Ford has been issuing tsb for a fix but none of them work. This is only happening on the 3.5L eco-boost motor. They are now in their 3rd model year of this truck and are still having this problem, it is only a matter of time before someone gets seriously injured. The timing of when this happens is un-predictable and often leaves no codes for the dealer to troubleshoot, so you get sent on your way with "could not replicate problem". Ford has been claiming it is condensation in the inter-cooler, has issued computer updates numerous times, now they have released and upgraded inter-cooler, but the problems are still happening.

- Janesville, WI, USA

problem #20

Sep 292012

F-150 6-cyl

  • 12,500 miles


My truck is equipped with the ecoboost 3.5L engine. Twice now I have attempted to accelerate and had the truck lose power and shake violently, creating a very dangerous situation. The first time was attempting to pass another vehicle. Weather conditions were warm (75 degrees F) with light rain. I pulled out to pass and attempted to accelerate when the truck suddenly acted as if the gas was shut off. It then began to shake and shudder violently as if the rear axel was being ripped from beneath it. I was able to fall back behind the vehicle I was attempting to pass, out of the way of oncoming traffic, and pull to the side of the road. After shutting off and restarting the truck, it seemed to run normal. The dealership service tech inspected the truck and stated it is a problem Ford is aware of (in wet conditions), but has no fixes. The second time I was attempting to enter the interstate from a rest stop into a single lane construction zone. The weather was cool (45 degrees F), dry and sunny. I attempted to accelerate to enter the highway and the truck acted as it did on the first instance. I was forced to pull off of the lane between two large construction pylons in order to avoid being struck by a tractor/trailer. The supplied dates, mileage and speed were from the most recent incident.

- Marseilles, IL, USA

problem #19

Jun 092012

F-150 6-cyl

  • 15,000 miles
While traveling down I-55, towing my travel trailer on a trip from St. Louis, mo to gulf shores, al, vehicle experienced a total loss of power on the interstate. I had been driving multiple hours in the rain when in jackson, ms, I had to let off the gas to allow other vehicles to merge onto the highway. When I re-applied the gas, the vehicle started shaking violently and would not accelerate. This caused the vehicle to lose speed and drop from around 60mph to 35mph on the interstate. After letting off and re-applying gas about three times the vehicle finally recovered and I was able to continue on my way. Luckily the other drivers on the highway were able to avoid me and I was not rear-ended or otherwise caused a serious accident.

- Hillsboro, MO, USA

problem #18

Oct 062012

F-150 6-cyl

  • 1,000 miles
Traveling at speeds above 50 when hard acceleration vehicle goes into limp mode becomes very dangerous have almost caused major pile up due to loss of power and total loss of vehicle control this vehicle and others like it are going to start killing people. All over the internet people are complaining about same problem and so far Ford has not recalled these vehicles and that is very concerning. Please help before many people are killed.

- Tallahassee , FL, USA

problem #17

Aug 012012

F-150 8-cyl

  • 16,000 miles


Began to notice rough shifting a lower speeds (30 - 45) at about 12,000 miles. Over time it became more pronounced and feels like the engine is lugging at this speed. The transmission causes a shudder when shifting up or down as if the transmission is having a problem getting into gear. Left the truck at the dealer for 3 days and they told me they could not replicate the problem. I think the streets they were driving were so rough that they couldn't feel the shudder. I was told that it may be a problem the computer is having synchronizing the fuel system and the engine RPM's. don't know about that but the problem still exists at 20,000 miles now.

- Georgetown, TX, USA

problem #16

Aug 142012

F-150 6-cyl

  • 4,600 miles
Surging at low speeds when coming to a stop. Feels as though the transmission is not downshifting and requires hard braking to prevent vehicle from moving into an intersection, or a car stopped ahead going in the same direction. This has occurred twice. The second time I almost hit the car stopped in front of me.

- Stow, OH, USA

problem #15

Jul 272011

F-150 6-cyl

  • 1,806 miles
Under hard acceleration into traffic or when passing, vehicle will suddenly lose power and go into a "limp mode." This condition is thought to occur because of engine misfire and several factors have been identified that can cause this in the ecoboost 3.5L V6. The dealer has replaced ignition coils with no success in correcting this issue. My service manager shared with me that Ford engineering is well aware of the issue and has yet to come up with a solution to correct it. In the meantime, my family is placed at risk of an accident because there is no way to predict when the engine will suddenly lose power when you need it most for passing or merging situations. This becomes even worse when pulling a trailer. NHTSA should demand that Ford immediately recall and repair these vehicles, or replace them until an appropriate solution is found to remedy the misfire condition and resultant lost of power.

- Chesterfield, MO, USA

problem #14

Aug 012012

F-150 8-cyl

  • 9,000 miles
When putting truck in reverse after going forward or put in forward after backing up, clunk or chirp noise from under vehicle. Could be driveshaft or rear. Waiting for warranty servce.

- Hampstead, MD, USA

problem #13

Jul 062012

F-150 6-cyl

  • 4,575 miles


I made a left turn from a traffic light stop, as I was accelerating on a moderate rate, the engine "took off" (unintended acceleration) and immediately accelerated to ~50+mph. I switched transmission into neutral and applied the brakes and slowed down to the speed limit, ~35 mph. I checked to make sure the accelerator pedal was not stuck on the floor mat (it wasn't). I reengaged the transmission and the acceleration started immediately again. This unintended acceleration occurred three times in a stretch of about 2 miles or so, until I had a clear, safe place to pull over. The check engine light did not come on, at least not that I could notice. After I stopped the truck and started up again things were fine. I tried to "recreate" the situation by suddenly accelerating, but to no avail. I have scheduled an appointment with the dealer. The vehicle is a 2011 Ford F-150 pickup with 3.5L ecoboost engine.

- Roy, WA, USA

problem #12

Nov 012011

F-150 4WD 8-cyl

  • 20 miles
2011 Ford F-150 raptor supercab; <12,000mi, happening since new. At slower speeds, when transmission is allowed to shift up to at least 3rd gear and back down for a slow maneuver and/or stop, under normal re-acceleration conditions (normal- <2000rpm), as vehicle accelerates and shifts from first gear to second, it will seem to presume a 1/2 to 1 second "neutral" state, revving RPM's prior to engaging second gear with a very abrupt and pronounced "slam" shaking entire truck. Symptoms can be slightly alleviated or avoided by letting off accelerator prior to shift, allowing to coast up to second gear through self power at idle RPM. Not feasable for normal every day driving conditions. Appears to be caused by lack or sudden loss of hydraulic pressure.

- Fort Madison, IA, USA

problem #11

Jun 082012

F-150 8-cyl

  • 6,900 miles
Truck started to not shift correctly, check transmission icon came on, luckily was coasting down a hill at about 45 mph. Checked the trans temp, indicated 205 F. noticed smoke coming from behind the truck. Pulled over, found transmission fluid pouring from it. 2011 F-150xlt 6700 miles, not happy with this incident. After reading several posts, Ford should recall this truck.

- Warner Robins, GA, USA

problem #10

Mar 232012

F-150 4WD 6-cyl

  • 20,000 miles
When I started up my F-150 super crew cab with the ecoboost engine the service advanced track warning message came on. As I was driving with this error message on the dash I found that my turn signals would not stay on unless I hold the turn signal lever. Later that day I went to take the truck into the dealer to show them the issue and the error message was gone and the turn signals were now functioning fine. Since the error was no longer on the Ford dealer could not do anything about the issue. The error stayed off for about 6 weeks and then came on again. Now it has been coming on about every 3 or 4 days so I took it to the dealer and they determined that the issue is with the rack and pinion steering assembly and have replaced that. I just go the truck back and have not had time to confirm that the issue is fixed however my confidence level is not there as this is just one of many issues that I have seen on this truck that appear to be "computer" related since shutting off the truck (or as I put it rebooting) will correct the issue.

- Andover, MN, USA

problem #9

May 012012

F-150 4WD 6-cyl

  • 18,000 miles
Vehicle has Ford's selectshift transmission - when it is put in "M" mode and then gear 1 is selected, it will behave normally up to about 3000 RPM. Above 3000 RPM, it will not slow down if the driver's foot is removed from the accelerator. If the slope of the road changes, it will continue to accelerate as though it was still going uphill, increasing speed without any driver input. It will return to normal behavior immediately as soon as the brake pedal is pressed, and the problem seems to only occur when the transmission is locked into 1st gear and in the M position (not D).

- Superior, WI, USA

problem #8

Dec 012011

F-150 6-cyl

  • miles
F150 ecoboost while going down a slight grade at about 50 mph in drive the transmission suddenly shifted down a couple of gears thereby causing the engine to rev up to over 3,500 RPM. After several seconds the transmission shifted back up one step at a time to the 6th gear. This has happened at least twice on different occasions. Another anomaly has occurred several times. While slowing down slightly the transmission suddenly 'clunks' and it feels like something has run into the back of the truck. It's like a hard shift into a higher gear, however the transmission appears to be 6th and the speed is around 60 mph..

- Princeton, MO, USA

problem #7

Feb 082012

F-150 6-cyl

  • 6,800 miles
Upon acceleration my truck shifted roughly sputtered and shut down, then the wrench showed up and I had to drift to side of road. This has happened 3 times. They have done a computer update 1st time, no luck, replaced a loose pin, no luck, replaced computer, no luck, replaced crank shaft sensor, no luck. This is a serious safety event. Two times my truck stalled and shut off while merging onto an extremely busy highway. I have children that ride in my truck and I do not feel safe. I have opened a case with Ford but all they want to do is keep fixing it. 44,000 truck, transmission stinks and I want a refund. Someone is going to be seriously hurt or die due to this problem.

- Kennesaw, GA, USA

problem #6

Nov 012011


  • 2,000 miles
Shuddering/surging at highway speeds around 60mph in 6th gear.

- Wright City, MO, USA

problem #5

Feb 032012


  • 2,650 miles
Vehicle "shudders" or "bucks" slightly under light acceleration from 55 mph on up. For a $45,000 vehicle and no fix yet this is totally unacceptable.

- Zumbrota, MN, USA

problem #4

Jul 052011

F-150 6-cyl

  • 152 miles
Transmission slams between gears and also does it while coming to a rolling stop. At times if feels like if you got hit from behind causing you to slam your head and body on the seat. It will do it at slow speeds and high speeds, but more noticeable while driving in and out of traffic slower speeds. At times it also feels like there is slippage when shifting gears.

- Humble, TX, USA

Read the next 3 complaints »

Not what you are looking for?