I only just learned of your investigation so my memory on exact dates and mileage may be off by a few weeks. I did take my truck to the ford dealer to report my incident so they should should have a record of this and the work they performed (baierl ford, zelienople, pa 16063). My 2012 f150 with the 3.5l ecoboost was about 6 months old at the time. I was passing a coal truck uphill on a 10% grade. I was not towing, nor did I have a load in the bed. He was going about 30 MPH. I eased out and got along side running now at about 50-55, then 'punched' the throttle to complete the pass. That did not turn out well. The engine cut out exactly like a reverse limiter on an atv and the check engine light came on. I barely was able to complete the pass, and was 'pushed' up the hill by the coal truck, engine running in that cut-out mode all the way. Got over the top and it continued to run like this down the other side. After about 6 miles, it went back to normal and the check engine light went out. Took it to my dealer not too long after. They installed something - since it was warranty work I wasn't given the paperwork and simply don't recall what they did. Apparently there was a tsb on the problem though. I have not had a repeat in the 6 months since, although I do drive differently now, having experienced that episode. That event severely compromised my confidence in this engine. Since then I have been very adverse to passing on two lane roads and have delayed towing several times for fear this would happen again potentially creating a deadly situation.
2012 Ford F-150 acceleration complaints
Page 6 of 8: complaints 131 to 160 of 194, newest first, as owners wrote them.
Raining out, went to pass a slower moving vehicle. My truck lost all power and shuddered like it was going over speed bumps. Check engine light came on and truck couldn't do more that 40 MPH. Had to keep a level head to avoid a head on collision and get back behind vehicle I attempted to pass. Very scary. This continued to happen every time you gave it hard throttle throughout the trip. This is an ecoboost f150 with the twin turbo v6 engine.
We were returning from arkansas in our f150 with the ecoboost engine in rain/heavy mist. We were on the interstate for a long period of time and when I went to pass a slower vehicle the truck just shook and wouldn't accelerate. It happened again 1.5 hours later in the same conditions, truck would not accept anything beyond 3/8 throttle. This happened before when we were in the rain (coming from arkansas) with the exact same conditions (year ago). I haven't taken the truck to the dealer as from reading several places there isn't a true fix at this point. Some people are drilling holes in their intercoolers trying to drain the water that appears to be the issue.
While accelerating to enter highway the vehicle lurched and lost power and the engine started shaking violently.I pulled off the road and shut the engine off. I started it again and it seemed to run fine for a time. Later while under a load it would miss. The check engine light came on. This could have caused an accident in this heavy traffic. I took it to the dealer and they ordered parts, but didn't seem to confident of being able to fix the problem..
When attempting to pass the vehicle loses power under hard acceleration. This has happened several times, usually at highway speed, wet/humid conditions, under hard acceleration. I have taken the truck into the dealership to have them perform the work outlined in a tech bulletin from ford but the problem persists. Just yesterday (10/6/13 at about 12:25pm approx 65 degrees f) driving in light rain on I-96 near grand rapids, mi I accelerated hard from about 65mph to pass on the freeway and the vehicle lost power nearly causing an accident.
On 2 sept 2013, in florida, I was attempting to cross a two lane road into the median and merge into traffic going the opposite direction. When I attempted to accelerate the vehicle immediately started to sputter and had loss of power that barely allowed me to cross before traffic arrived. The rough running continued after I attempted to merge into traffic and continued for about a 1/4 mile before where I was able to exit. It started running correct shortly after that. The weather was clear and around mid 80's, mileage was around 9500, speed was 0-50 MPH. The second incident occurred on 27 sept 2013, in missouri, as I was attempting to pass traffic on I-70. The vehicle again started to sputter with dramatic loss of power that didn't allow it to maintain traffic speeds. The check engine light started flashing and I continued to the next exit. I pulled over and shut the vehicle off and started it again. The engine light became steady and remained on for the remainder of the 900 mile trip. It is being taken in for service. The weather was rainy and in the 60's. Mileage was around 11000 and speed was around 65-70 MPH.
While attempting to pass on interstate 85 in major traffic the engine unexpectedly had a sharp reductions in engine power during acceleration. This has occurred twice in the last month.
I purchased my f-150 ecoboost, on july 28, 2012. Almost immediately after purchasing it, I have had issues with the engine. Often when it rains, the truck will not start or when it does start, it refuses to go or when it is going, it will not accelerate. When I attempt to pass a slow vehicle, there is no power. The engine boggs down, to an idle. The truck has left me stranded numerous times. I took my family on a trip to miami, florida, during the christmas holiday. On the open road the motor quit. I was able to limp it into a ford dealer, who had to perform extensive engine repairs in able to get the truck running again. While I was driving it back to tennessee, after 3 weeks of repairs, it happened several more times. When I attempt to pass slower vehicles, I try to accelerate and there is no power. It is dangerous, particular when traveling on 2 lane country roads with hills. Often, when I park and exit the truck, there is a strong odor of gas coming from somewhere under the hood of the vehicle. This is a fire hazard. On 2 occasions, the driver's seat has come unattached from the floor of the truck. This morning, I went to take my children to school I was driving and heard/felt thumping and the seat fell back, I was nearly laying on my back, while driving. This has happened twice. This is dangerous and scary, when it happens while driving down the road. The ford customer care representative was very flipped and seemed to be more concerned with ensuring that I understood the terms of the warranty than the safety of my vehicle. I was insulted and humiliated, for suggesting they provide me with something to drive while they corrected the problem. The first time this happened, it took 3 weeks to fix. I bought this vehicle, I should not have to buy another vehicle to drive. To date the best fuel mileage I have gotten is 13.2 miles per gallon.
This complaint pertains to the 3.5 liter ecoboost engine. I was driving on I-95 at approximately 70 MPH with the cruise control activated. There were four lanes of traffic at this location. When I attempted to accelerate around a slower vehicle, the engine shuttered and went into limp mode. I had to drive onto the berm, nearly causing a crash. The engine returned to normal after several minutes and I was able to continue my trip from pennsylvania to north carolina. This engine shutter occurred three more times during my return to pa. The last time the service engine light remained activated. The loss of engine power on a busy multiple lane highway is an extreme hazard and could result in a serious vehicle crash. It is time for ford to issue a recall for this known issue.
I have had this problem several times. It seemed to start in october 2012. I was trying to merge into traffic and pushed the gas pedal down quickly and it did not move forward any faster. I I was almost rear-ended by another vehicle because I could not get any speed. It seems that when I push down the pedal very slowly, it will go faster. But when I need the response to be very quickly, it does not respond. I have had this problem when I pull my camper. It will be performing then all of a sudden, I will need to push down the pedal to get power up a hill and again, there is no power. I have taken this to the dealership and they keep saying that there is no problem. I bought this vehicle to pull my camper. It does not perform the way it was touted in their advertisements.
When returning from cullowee, nc, I was on the entrance ramp of I-40 east. At approximately 45 MPH, I pressed on the accelerator to increase to highway speed. The engine started sputtering and the entire vehicle started shaking violently. The vehicle never gained speed until I let of the accelerator completely and slowly applied pressure to the accelerator again. The violent shaking of the vehicle and the resulting dangerous merge into traffic terrified my wife, child and grandchild.
While accelerating on an on-ramp to merge into traffic on I-90, the entire vehicle vibrated very hard, the engine then lost power, causing electric to shut down, and uncontrolled deceleration to occur. The check engine light started to flash. Once I released the pressure on the gas pedal, and pulled off the interstate to avoid oncoming traffic, the power returned and the engine responded again. The catalytic converter was determined to be the problem and was replaced. Notified ford regional service manager about concerns that this was a safety issue, he responded that the car was under warranty, and nothing else could be done despite acknowledging that we could have been involved in a very serious accident due to the engine failure. About 2 months later, the same problem occurred, and apparently the computer system was not updated as required. After the update, it worked fine. In december 2012, similar symptoms occurred and the dealership determined it was the coil in engine 4 as the problem.
I was traveling at 65mph and went to pass and at acceleration the truck stalled and almost died. I almost got rear ended by a semi I had to pull off on shoulder to a complete stop then accelerate again. My truck has the ecoboost engine and hope they can recall and fix problem before somebody gets killed.
The first incident 6/28/13, when accelerating to get onto a highway the vehicle stopped accelerating somewhere before 60 and lost all power. The speedometer pegged at 60 and the rpms jumped to redline, but there was no power being produced. The vehicle took at nose dive and would not allow fuel to the engine until the rpms settled to idle and I was able to feather the gas pedal in order to regain control of the engine. The second incident 8/9/13, when going to pass someone at highway speeds on I-95 the vehicle fell flat again, same scenario, this time the check engine light came on. Same actions as above, with feathering the gas pedal and able to regain control of the engine. I brought my vehicle to the dealership and the intercooler was replaced at 7600 miles. Thankfully there were no accidents in both scenarios, these events could've been catastrophic both being on heavily traveled highways. At 500 miles I had the check engine light come on and one of the catalytic converters needed to be replaced.
We were driving on i5 south in california with our cruise control set for 70 MPH. We were coming into heavy traffic so hit the button to end cruise. It didn't work so my husband hit the brake and it didn't disengage the cruise control. If my husband would press the brake, it would slow down but when he took his foot off the brake, it would accelerate up to 90 MPH. There were big trucks all around us and other vehicles and we couldn't make it to an off ramp for 5 miles. When we did, my husband slowed the truck enough to put it in park but the engine revved super high and we shut it off. We turned it back on a couple of times before we took off to finish our trip. We did not use the cruise control again for the rest of the trip. We took our ford to the dealer that monday and they said they could not find anything wrong with the cruise control. My question was what if it happens again or somebody dies and he didn't have an answer and said he would contact ford.
I was traveling at approx. 50 MPH behind a slow vehicle and pulled in the oncoming lane to pass when the truck seem to miss fire. It would not accelerate and I had brake hard to pull back in behind the slow vehicle. It did this for about thirty seconds and cleared up. It has only happened once. 2012 f150 ecoboost
Almost got hit trying to pass a car. When I pulled out to pass and tried to accelerate the motor started missing badly. Ford supposedly did not have a fix until early this year. My eco bust now has 70,000 miles and ford wants me to pay for part of the repair. They have never contacted me to inform me of the problem.
While attempting to accelerate from a stop sign turning right my 2012 ford f150 platinum 4x4 ecoboost stalled and would not accelerate for a few seconds. I thought the truck shifted into neutral but that was not the case. This has happened several times within the last 3 months and is getting more frequent.
On vacation to ga from md in july of 2012, during a heavy downpour and lost power several times traveling on I-95 towing a boat. Driving about 65-70 MPH stopped at the ford dealer on rt. 1 in fredericksburg va and they did a temporary fix, a piece of cardboard was installed to prevent the moisture from causing problemsonly to be told to go back to our dealer for the part once it comes in all back ordered. We have since contacted sheehy and got nowhere never got a call either that the part was in. Truck gets the worst gas mileage and over the rain we had started to stall out again. Never called and never fixed.now with the rain again and the heat it is doing it again.....
I switched lanes to pass a truck and there was another vehicle in the lane so I stepped on the throttle to the floor and it hesitated then started to die. Then the truck started to shake along with the steering wheel. The check engine light came on and it continued to sputter and shake for a mile or so then it started to come out of the problem. The check engine light is still lit and my aftermarket stereo can pull the check engine codes and they were p0300 p0304 p0306 p0306. It was about 75 outside and the road was dry. This is the 4th time this has happened. The truck now has 26,300 miles on it.
Since I purchased my truck there has been seven different occasions where I have accelerated to enter an interstate or pass a vehicle and the engine lost power and I could not accelerate. I have taken the truck in and they have replaced parts and said it was repaired. This past weekend I was entering the interstate in a construction area where barriers were on both sides of the interstate. I accelerated to enter the interstate and there were cars and a semi approaching where I entered. I accelerated to get up to speed with traffic and the truck stalled and would not take fuel. The approaching semi could not stop in time and had to swerve to miss me. He missed hitting me by inches and almost hit another car. With the barriers in place I could not get off the interstate when the truck stalled. I have the eco-boost engine and the vehicle is currently at the dealer. They are telling me they can not find anything that is causing the failure. This failure could have caused multiple injuries or deaths had the semi not been able to avoid hitting me or the other cars. I personally feel this is a safety issue with this engine.
Myself and my wife was traveling on a short four lane road when I attempted to accelerate to pass a slower vehicle. My f150 engine shuddered, I let off the accelerator, the shudder stopped. I then tried to accelerate again and nothing. It was like I was coasting, I had no power from the engine to accelerate. I continued to try and accelerate but nothing. This lasted for 15-20 seconds then it started to accelerate normally. This same type of lost of power has happened 3 times since then. The first two times it was raining heavily, the last two it was not. I have read about the issues documented with the f150 eco boost engine and I am sure this is that problem. Unfortunately I read it after I bought the truck!!
I had the tsb (for known surging issue) performed on my truck (2012 super crew 4x4) in may at 25k miles. Everything seemed better, until... This past saturday, I left the house at 5am for a 7.5 hour/ 350 mile drive from home. It was raining continuously for the first two hours. Sometimes hard rain, but it didn't stop for the first 2 hours. I was driving back country roads with mostly 55 MPH limits and rolling hills. Given the weather, type of roads, time of day, etc. I drove gently for the trip, never put my foot in it. Then, when going up a steeper hill that required more throttle than the others to keep my speed up, the truck started hesitating. A lot. More than it ever had before the tsb. And then, just after the hesitation began, something extra occurred that had never happened to it before. The truck started to shudder. This shuddering was akin to driving over road shoulder rumble strips on steroids. As soon as I let off the gas, the shuddering stopped. I gently pushed the pedal, shuddering was back and just as bad. Let off again. It stopped. Pushed the pedal again. It came back. Pushed the throttle once more, and it had stopped. I slowly pushed further on the throttle and it didn't do it any longer. By this time I was down to about 35-40 MPH going up the hill. So I pushed down the pedal almost to the floor. The truck kicked down and accelerated with only slight moments of hesitation. Not once did the check engine light come on. . Thus, I had a textbook case of exactly what the tsb was supposed to solve, but didn't.
I was traveling south in the outside lane on I 95 (florida) during heavy rain, approaching a slower moving vehicle in front of me. I changed lanes and accelerated to approximately 70 MPH, when the engine suddenly lost power, began to misfire and rapidly decelerated. The vehicle had been traveling in rainy conditions at highway speed for approximately 1 hour. Since I had committed to make the overtaking maneuver and for the few seconds I was unable to accelerate and/or pull back into my original lane as I was traveling adjacent to the vehicle I was overtaking, I realized that there was another vehicle fast approaching me in the inside (fast/over taking) lane. Luckily the driver was observant enough to release of the impending collision a head if he did not take evasive action and slow down. After a few seconds I was able to pull back into outside/slow lane. This loss of power and misfire continued for another 45 minutes, up until I exited the highway and drove to my local dealership.
While traveling to florida from tennessee we had stopped at a gas station. While pulling out into traffic and accelerating, the truck started shaking violently due to misfire indicated by flashing check engine light. The miss was so bad that I immediately had to pull over. I shut the engine off to clear the on board computer. The truck ran fine afterward, but the check engine light stayed on. This was a bit scary as we could have been hit due to the rapid loss of power while merging into traffic. Weather conditions were very rainy. We had driven thru rain for ~7 hours off and on. I believe this to be a known problem that ford has yet to fix with condensation in the turbo's intake on the v6 ecoboost engines. I am headed to the dealer when I get back in town.
Driving turnpike at 1:30am with wet roads but not raining. Cruise control was engaged at 75 MPH. Approaching a bridge and upon starting to climb on the incline I heard a noise that sounded like the transmission had disengaged then the engine light started pulsating on and off so I tried to accelerate and the truck did not react but since I was going 75 it took me over the bridge and then I coasted down the bridge with the cruise control disengaged. I pulled over to the side and placed truck in park the engine was still on. I turned off the truck and waited about 1 minute then I turned the key back on and the truck started up with no engine light or any sign of problems. I drove all the way to miami with no further incidents. I took the truck to ford of homestead and they said they could not pull a code out of the computer that showed anything had happened. I later took the truck again this time making noises when u accelerated it sounded like the transmission was shuddering and again nothing they could do to replicate it. Again on or around march 2013 I took the truck to another ford dealer and tried to replicate the shuddering between 3 or 4 th gear to no avail. The truck this past weekend on the same bridge again with wet roads made the shuddering sound and feeling but the engine light did not come on and the truck upon getting to the top of the bridge continued without having to be turned off and on. At first I thought this might be a transmission issue but whenever I guess the truck accelerates to gain speed to go over the bridge or after leaving a stop or red light between 3 or 4 th gears it shudders and when the bridge comes around it goes to a lower gear and starts losing power. When it happens between 3 or 4th gears it is with me accelerating. They told me that the truck has a memory if you drive it hard or softly it remembers this and shifts differently.
While accelerating to pass, truck started vibrating,had loss of power and increased RPM on tach truck practically stopped in its tracks first time it's happened. Will be contacting dealer. Definitely could be hazard-as in heavy traffic so I hope ford takes notice before people die.
When driving during rush hour traffic in atlanta, georgia, I moved to the passing lane to pass a slower vehicle. When I pressed the accelerator on my 2012 ford f-150 (with ecotech motor), my truck did not accelerate and it felt as if my truck had lost all power. This lost acceleration required the vehicle behind me to take evasive action and almost resulted in an accident involving numerous vehicles.
Traveling on the interstate, little to no uphill or downhill grade, speed approximately 55, attempted to pass a tractor-trailer. Pressed hard on the accelerator pedal, and started the pass. Halfway thru the pass, passing speed 65-70 MPH, my truck lost all power and started shaking violently. I backed off the accelerator, and pulled back in behind the tractor-trailer, then off to the right shoulder. I shut the engine off, opened the hood, expecting to see something bad. No visible signs of anything wrong. Started the engine, drove the rest of the way home, with no other mis-haps. However, the same thing has happened twice more, the most recent being just a few days ago, 6-10-13. Each time this has happened, it has been during an attempt to pass a slower vehicle, during a hard acceleration. I'm typically a very conservative driver, and bought this truck with this engine for both fuel economy and power to pull a trailer. On the first and third occurrence, I was on the interstate, with traffic going the same direction. The second time it happened, I was on a slight upgrade on a 2-lane road, and attempted to pass a much slower vehicle. There was traffic coming from the other direction, but there was ample time and distance to make a safe pass, as the truck in front of me was very slow. Again, halfway thru the passing attempt, I lost power, and had to back behind the truck in front of me. Fortunately, there was sufficient room for the oncoming traffic to move over to avoid the collision. I have talked to my dealer about this, and they were going to research the issue before servicing it. However, I recently saw a report on this issue on the local news station, and realized that my problem is not unique.
After purchasing this 2012 f150 w/ecoboost v-6, I wanted to see how good of gas mileage I could get out of it. I also wanted to break the vehicle in before any hard accelerations. When starting from a complete stop, I would gradually make it up to highway speeds. I treated the vehicle gingerly until I wanted to test the capabilities of this ecoboost engine I had heard so much about. It was a cold january evening and there was no unusual weather (no rain or snow). I had been cruising at constant highway speeds for approximately an hour. The road had narrowed from a 4 lane highway to a 2 lane. I was stuck behind a vehicle traveling just above 50 MPH. I reached a passing zone and decided to test the performance of the engine/truck. I depressed the accelerator to the floor and the engine spit and sputtered. I decided to ease off immediately for our safety. No lights on the dash illuminated as result of this engine problem. After this incident, I have noticed that at cruising speeds, there seems to be an engine miss around 60 MPH while going up a slight grade. I have also noticed that when starting the vehicle, it (engine) does not start as quickly. The key has to be held longer. These problems are a direct result of the damage caused to the engine after the very first hard acceleration.
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