The first time this happened, my husband was pulling out into a center turn lane in order to merge with traffic and the motor cut out and bogged down. Just four days later, I had the same experience where the motor completely cut out while I was going through a yield sign, slowing down, and then getting on the accelerator to increase speed. I counted between 3-5 seconds before the truck started accelerating again. This is very dangerous and had someone been right behind me it could've been a bad wreck. It happened to me this first time right after I picked my truck up from the dealership and them telling me my VIN didn't qualify for the tsb with replacing the cac (intercooler) and adding the air deflector plate. I have since gone to a second dealership and they are performing the tsb for me after having my truck for 5 days now, and being able to reproduce the problem easily. I hope this fixes it. I've already had a check engine light come on and my driver's side catalytic converter was replaced. I've had numerous leaks all under the 36,000 mile warranty - front main seal, transmission leak, rear diff leak, and even some deteriorating rubber gaskets in the doors, and am seriously questioning ford's quality these days.
2011 Ford F-150 engine complaints
Page 15 of 18: complaints 401 to 430 of 511, newest first, as owners wrote them.
This truck has the 3.5 liter v6 ecoboost engine. The truck is company owned by wl hall co. I was accelerating while attempting to pass another vehicle. The vehicle lost power then started to shake, shudder and jerk. The check engine light came on and the vehicle's engine started to run very roughly. This happened again at approximately 9,700 miles, 28,000 miles and 60,000 miles. Ford has attempted to fix the issue three times. The truck will be going in for service for this issue a fourth time. Due to improper performance, this issue almost caused an accident this last time. There have also been numerous incidents over the life of the vehicle where it did not shift properly and dropped power, but then the vehicle corrected itself.
When I went to accelerate the motor started to skip and lost power the light came on. This has now happen on 5 different time two times while pulling a 5th wheel camper in the rain causing traffic to make evasive moves to keep from running us over.
As described in the federal safety agency action number pe13018- hard acceleration and the engine misfired while trying to pass a vehicle on a highway.
The first problem was while driving on the interstate at around 70mph it felt like I was rear ended and pretty hard. I looked around and there were no cars nearby. In about 2 minutes it did it again and again the started to be intermittent. I took it to the shop the replaced coil pack and plugs and sent me on my way. I did not make it 2 miles down the road when the engine started to shudder. Took truck back they kept it for weeks then said it was fixed. They had installed the shield per the tsb and again sent me on my way. Within 1 mile it did it again and I waited to take it back as I needed my truck for work and they were giving me tiny SUV loaner cars. This time they replaced intercooler after weeks and weeks of it sitting there. This happened approx. 12 times. During this time I sent letters about my concerns to every person on the board of directors at ford with no response. The customer service manager for ford not only avoided my calls and would not reply to me then I tried to escalate above her and reached a very arrogant jerk that blew me off. Once finally getting a reply from [xxx] I got the reply I have expected. The corporate blow off! Ford does not let you get past csm. This has been going on for over 7 months. I had enough so decided to try to sell this death trap and dealerships were low balling me do to the known issues. When leaving a dealership and trying to cross a rural hwy the truck lost power and I was nervously slamming the gas pedal to the floor and nothing happened. I had a dump truck coming at me blowing its air horns. The truck started to go but barely limping. This has now happened 3 more times and ford denied this has happened to other trucks and that they knew of the problem. They now will not even work on the problem period I was told they are not allowed to try to repair these trucks at all. I have a very dangerous truck. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).
We were traveling on a two lane road. We were following a slow moving tractor trailer. We had been traveling for about 3 hours. It had rained earlier and was humid. I accelerated to pass and was partially around the truck when the engine of my truck started misfiring and lost power. Luckily, I was able to limp it along and get back into my lane before having a problem with oncoming traffic. The motor in my truck is the 3.5 liter ecoboost. I have seen reports of this happening to this motor, but this is the first time it happened so dramatically to mine. I don't recall having traveled for any distance in these conditions with this truck. The truck is scheduled to have this problem looked at. It was explained to me that there are different repairs depending on how the truck is equipped. This was a very dangerous event and I believe this should have been taken care of before the incident happened. I have read of a possible recall of the trucks with these motors to rectify the problem. It is evident to me that this needs to be done before someone isn't as lucky as we were.
While traveling to florida with family on vacation just coming out of mountains of tennessee went to pass a 18 wheeler hit gas was going 60 truck started shaking slowing down had traffic behind no cel light or any other warning light on let off gas three times before I could accelerate normal again then happened again in florida on I 75 on ramp had to let off two times before could accelerate.
Traveling on 4 lane highway during period of train, accelerated to pass vehicles, my truck eco-boost motor acceleration stagnated and vehicle began to shutter, was unable to pass, decelerated and stagnation stopped. Incident occurred when ever I tried to accelerated during active rain during a 9 hour interstate trip.
Tl* the contact owns a 2011 ford f-150. The contact stated while he attempted to merge into highway traffic at 65 MPH the vehicle hesitated and failed to accelerate without warning. The contact was able to avoid two near crashes and drive safely onto the emergency lane. The loss of power failure was also previously experienced while driving 50 MPH and the wrench light illuminated. The vehicle was towed to the dealer for diagnostic testing. The manufacturer was not made aware of the failure. The VIN was not available. The vehicle was not repaired. The approximate failure and current mileage was 20,000.
While merging into traffic on the expressway today in miami, at about 35 MPH, I had to accelerate to get out of the merging lane, at which time (for the third time since I bought the truck in 2011) the truck lost all power to the engine (a 3.5l ecoboost) and began to sputter, shake, and decelerate. Luckily for myself and the other drivers on the road I did leave a sufficient gap between myself and the car to my rear to give that vehicle time to react to what equates to a vehicle pulling out in front of him/her and gently pressing the brakes without the brake lights engaging. My truck hovered between 25 and 30 MPH for about 30 seconds with it doing the sputtering and slowing thing each time I attempted to accelerate during that time period. After pretty much coasting for 30 or so seconds, the truck sprang back to life and drove as advertised. From what I've read, this is not an isolated incident and I (as well as others) believe ford should be held accountable for this defect. I'm not looking for a new truck, I'd just like the problem fixed. Even though no deaths or injuries have been reported due to this "yet", you can see the danger of having your engine loose power when you need it the most. Unfortunately for their customers, all ford seems to be concerned with is the loss of a buck......not the loss of a life!!! [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).
I was traveling in the righthand lane of the east bound side of i24 around manchester, tn. My speed was approximately 65-70 MPH. I suddenly came up upon slower traffic in the same lane and signaled to pass the slower traffic. As I looked in my mirrors for traffic behind me I noticed another vehicle closing on me in a hurry. I depressed the accelerator to gain speed and make the pass. The vehicle lurched and the motor suddenly shut down and wouldn't accelerate in the middle of my pass. The vehicle behind me locked their brakes and managed to slow their vehicle down before possibly colliding with me. I let the slower traffic on the right pass and signaled to get back in the right hand lane. This has happened twice to me and I think there is a real possibility this could endanger lives and property if not corrected. My 2011 ford f-150 is equipped with the 3.5 liter ecoboost v6.
Tl* the contact owns a 2011 ford f-150. The contact stated that while driving approximately 75 MPH, the vehicle decelerated independently. The contact was able to merge to the shoulder of the roadway and regain acceleration power. The manufacturer was not made aware of the failure. The vehicle was not repaired. The approximate failure mileage was 34,000.
Tl* the contact owns a 2011 ford f-150. The contact stated that while traveling various speeds, the vehicle suddenly lost acceleration power. The vehicle was taken to the dealer where it was determined that the inter cooler had failed. The vehicle was not repaired. The manufacturer was contacted about the failure. The failure mileage was 3,500.
Tl* the contact owns a 2011 ford f-150. The contact stated the vehicle loss power when accelerating. The contact stated there was a long hesitation prior to the vehicle accelerating. The vehicle was taken to the dealer and the turbo intercooler was replaced. The computer was also reprogrammed but failed to correct the failure. The VIN was not available. The failure mileage was 2,000 and the current mileage was 6,000.
Poor gas mileage. Window sticker says 23 mpg highway, best I ever got is 16 mpg,with cruise set at 65 MPH on flat level highway. Had at dealer, 4 times, they updated computer, changed turbo intercooler and they still cant improve my fuel economy. Around town I get 12 mpg. Bad turbo lag when pulling out low power, dealer said its how turbos work. Doors rattle, speakers crackle, rear end springs make a creaking sound. 4 wheel drive makes a loud growling, sounds like gears are not meshed right. I would not recommend a new f-150 to any one. Nothing but trips to the dealer and let downs.
Tl* the contact owns a 2011 ford f150. The contact stated that while driving 60 MPH, the vehicle vibrated and lost acceleration power without warning. The failure was experienced numerous times. The vehicle was taken to the dealer several times for the failure. The coils spring was replaced several times; however the failure was not corrected. The vehicle continued to vibrate and would also stall without warning. The VIN was not available. The failure mileage was 100,000 and the current mileage was 108,163. The VIN was not available.
Was high speed accelerating in nj from one hwy to another. Long on-ramp. During acceleration from about 40-45mph to get to 65 highway speed, the truck acceleration stopped truck shook, speed declined and the check engine light came on. I let off accelerator and 3-4 seconds later shaking stopped and check engine went off. I slowly came back on with accelerator and issue stopped. Weather conditions was rainy/wet/humid about 60f ~ 1000am. This is 3rd time has happened. First time was shortly after receiving truck new in 2011 ~ april in same conditions and second time about 1 year after that. First time and this time I took to local ford dealer and they found no codes. This recent I also started losing mpg from normally ~16.9 mpg and down to 12 mpg now. Dealer said they relayed info to ford and said replace spark plugs as no codes. I have others who have same truck bought for a company fleet with sequential VIN's that have had same issue and had catalytic converters replaced. My dealer said ford refused.
Tl* the contact owns a 2011 ford f-150. The contact stated when the vehicle was turned on the engine idled excessively and the began to smoke. The failure was experienced numerous times. The vehicle also stalled while driving approximately 20 MPH. The contact was a able to drive onto the emergency lane and restart the vehicle; however, when the accelerator pedal was depressed the transmission disengaged and the rpms increased. The vehicle was taken to the dealer for diagnostic testing but they were unable to locate the failure. The dealer replaced the turbo charger line; yet, the failure was not corrected. The manufacturer was made aware of the failure. The failure mileage was 20,000. The current mileage was 23,800.
Related to the f-150 ecoboost investigation : pe 13-018 date opened: 05/22/2013. My truck had the same intermittent stumble/misfire on acceleration described in the investigation above. I was driving on a highway early morning during a heavy rain storm. As I accelerated to pass a car the truck began to shake violently and lost all power. I was forced to cut a vehicle off to pull over and shut the truck off. I was able to restart it and bring it to the dealer who told me that nothing was wrong with it.
The vehicle was being driven for approximately 300 miles when while attempting to pass another vehicle (accelerating from ~50 MPH to ~65 MPH) the engine lost all power. As the vehicle coasted back into the lane of travel power was restored to the engine. The following week the vehicle was inspected by bill brown ford in livonia, michigan. The dealer stated they could not find anything wrong with the vehicle but there was a technical service bulletin from ford for the inter-cooler. However the necessary parts were on back order for over 3 months.
When I'm accelerating the engine stalls, I may be leaving a stop sign climbing over an overpass or passing another slower vehicle. Seems to happen more often about 40mph to 70mph.
It was raining very hard, and I had a cell phone call come in. I was on I-75 southbound. I pulled off the road to take the call. After approximately 15 minutes, I put the truck in "drive" and started to pull back onto I-75. At about 25 MPH, I pressed the accelerator to the floor, and it sounded like the turbo waste gate opened fully. The truck stopped moving forward and began to shake very hard. There were 2 semi's coming toward me honking their horns. I released the accelerator and steered toward the shoulder of the road again. The truck limped off the highway, still shaking, but with less vigor. After approximately 2 minutes, the idle smoothed out somewhat, and eventually the truck ran smoothly. It took about 5 minutes. I took the truck to brondes ford in maumee to have it checked. I had an appointment friday, june 14. When I explained what had happened, the service advisor said she would have to check with her boss. She came back and told me there was nothing they could do, because no code lights were on and the truck wasn't doing it now. I asked if they could run a diagnostic and she said "no, bring it when it's doing it, and we'll check it". If it happens in front of 2 semi's again, I may not be able to bring it in! I could have been killed! I can't believe they refused to even run a diagnostic on it! This is a serious issue in my mind, but brondes ford does not seem to feel it is a problem.
Lost power,engine died under hard acceleration while trying to pass a car. Checked with the local ford dealer and the customer relations center at ford and they claim they never heard of such a problem.
My ford f150 eco boost lost power suddenly while trying to enter a rural route at a stop sign.while trying to accelerate it just died for several seconds and then took off since I was pushing on the accelerator wondering what had just happened .the vehicle has been shuddering a lot on acceleration now with a substantial loss of fuel economy . I have personally had it at two ford dealership which say they can find no problem with it , but shop foreman told me and my wife we where stuck with it and to fix it by pulling the battery cable off every once in awhile.
Rapid acceleration while passing caused engine to cut out and shudder. The second time it happened in april 2013 I had to pull over and kill the engine so the computer could reset. Took vehicle to ford dealer for warranty repair, 2 months later the problem has re-occurred.
While attempting to accelerate back to highway speeds after slowing down for a car leaving the highway, my truck lost power and started to shutter. The engine light was flashing and I was unable to maintain highway speeds. I exited the highway and after about 2-3 minutes I was able to accelerate normally. Conditions were wet and the temperature was around 70f.
We just took our f150 (ecoboost v-6) on vacation. On more than one occasion we were trying to accelerate to pass other vehicle's and we lost all power. We merged into the passing lane as we were accelerating and when I applied more throttle we lost speed and power. After this happened once we tried to duplicate it when we on the interstate and pretend we were going to pass other cars. The power loss happened about 50% of the time. Furthermore, this happened when we were just trying to get on the interstate via an on ramp and get up to speed. I did not "floor it" to get on the interstate, I did a more aggressive acceleration and the pickup shuttered and lost power. I asked ford today (june 5th) if they had a recall on the vehicle and they said they might have an update, but nothing was certain. I consider this a serious safety hazard and we will not be driving the vehicle any more than we have to until this issue get resolved. I wasn't performing perfectly timed passes (we were on the interstate so there was no oncoming traffic) but this could be dangerous.
I was driving at highway speed, and accelerated rapidly to get out of the way of a merging car. The truck shook violently and lost power. I pulled to the side of the road and restarted the vehicle. There was no "check engine light" or any other indicator of a problem during the incident, or after restarting the truck. When I took it to the dealer, they indicated that they found nothing wrong with it. I have driven the truck since then wondering if it would happen again. Now I see that others are experiencing the same issue. Kistler ford in toledo, ohio will have a record of this service appointment on 10-21-11, as I have a copy of the service document stating the above. Although I have no way to prove it, the truck has also seemed to have less power since this incident.
I would like to add to the complaints of the eco-boost. I was going about 75 MPH on interstate in alabama. Floored it to pass and engine went dead. Check engine light came on. Coasted to shoulder of highway and it started to sputter and was able to get to gas station on exit about 200 yds away. Turned off engine for about 10 min. Got back on highway(with engine light off ) and was able to make it back home in east texas. Took to ford dealership to get looked at. They put on some plate on the turbo cooling radiator. Last month, took it up to iowa. Coming back, it did it again in tulsa ok. This time engine light on all the way home. Took to dealership, they said a 3 pronged cable, the prongs broke, going to one of the turbos.
Vehicle shifts hard when not under power. When under power vehicle backfires,mis fires, loses acceleration completely. Have brought vehicle to deal 4 times and have been told there is nothing they can do. There is black sut on the exhaust. I do not feel safe driving in the vehicle if it cannot accelerate or will just completely shut off.
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