2011 Ford F-150 acceleration problems

Filed Sep 20, 2026 · Acceleration, Electrical · NC · crash

I bought this truck used about one year ago. Since then I have not had much time to use it. In the last three months I have had some time to drive it. Three times in those months this issue has occurred. Luckily they all occurred on my property and no damage happened except to the truck. First time it happened an exterior mirror was knocked off, a running board was bent, scratches and dings to the to the paint, and a tailight was damaged. This all happened in reverse due to a gate opening I was going through. The motor all of a sudden had a massive spike in RPMs and a violent lunge and slide of the vehicle. I learned later that it was due to a flawed part in the transmission called a molded lead frame. Transmission is Fords 6R80 6-speed automatic. Last time it happened was on 09/16/2026. It has not been inspected by any entity because apparenty I live too far in the "boonies" for anyone to come this far but the vehicle is available for inspection upon request.

Filed Jul 8, 2026 · Acceleration · TN

While driving at highway speed my f150 justdown shited to third gear after stoopping it wouldn't take off.Ihad to shut engine off to get back to first gear .

Filed Jul 8, 2026 · Acceleration, Brakes · MO · crash

Made a complete stop and vehicle accelerated at a high rate of speed and could not stop.

Filed Jun 9, 2026 · Acceleration, Electrical · MD · crash · 1 injury

I am having a lead frame issue. At various speeds, the vehicle will just down shift, locking the tires and causing a hazard for other drivers which could be a very dangerous situation. I was impacted from the rear due to this occurrence. It causes extreme jerkiness when doing this which is also injurious to my back and neck and shoulders.

Filed May 11, 2026 · Acceleration, Electrical · MI

My vehicle has abrupt unintended downshifts straight down to first gear at fast speeds, which is causing rear-wheel lockage near heart attack and near-loss of control spinout. The sudden downshifting causes a loud violent high extreme RPM engine over rev. sounding as if it is about to blow up or an internal explosion. This is occurring at highway speeds up to 70 mph. At these speeds, is an immediate risk to me and others! Causing a fatal high-speed rollover or a multi-vehicle collision due to this malfunction! This was a recall 19S07 for my year of truck but my Vin was somehow was not on the list which I guess makes me not qualified unless I get into a crash and then have a lawsuit.

Filed May 11, 2026 · Acceleration, Fuel system · CA

I contacted ford about my molded lead frame because my truck has a issue with the transmission and they denied my coverage to repair the problem and it’s is expired so the won’t fix the issue.

Filed Mar 11, 2026 · Acceleration, Transmission · OK

Approximately one month ago, I noticed that the vehicle would not accelerate the way it normally does. A error code came on. I took the vehicle to Auto Zone for error code check. I was informed that the powertrain control module speed sensor had gone bad. I looked this up and found that Ford had a recall on 2011 Ford F-150s for similar issues. I disconnected the battery, as recommended on an internet site, and the vehicle began to operate normally. About one week later, I noticed that the vehicle would not shift above third gear and was accelerating very sluggishly. On further investigation I fount that the vehicle would not shift out of third gear (up or down). I again disconnected/reconnected the battery, and again it began operating normally. I contacted the local Ford dealership and they said that I should have received a letter in May 2019 about the PCM recall. I didn't recall receiving the letter, but Ford Motor Co. Customer Service says the PCM was actually reprogrammed on March 29, 2019 to repair the issues related to the recall. My concern is that the PCM speed sensor is malfunctioning again even after the repairs were supposedly performed by Ford. I am concerned that the vehicle may again be potentially unsafe to operate at highway speeds. I wanted to make the federal safety agency aware of the potential for ongoing safety issues with this vehicle even after Ford's proposed fix.

Filed Oct 3, 2025 · Acceleration, Transmission · MD

I was driving in the morning car was started to lag on accelerating and shifting gears slightly. My dashboard and gps system flickered on and off when this happened. The truck putted as well. On my way home the car had trouble accelerating and dropped from 5th gear all the way to first causing me to almost lose control of the vehicle. It continued hard shifting and loss all acceleration. It continued flickering everytime it would sputter and slip gears, Gps and dashboard would flicker. They gears were going haywire. I could not accelerate with the pedal all the way to the floor, and was hard to turn steering wheel. Almost like the Truck was coasting. When we took it to the mechanic they stated it was a transmission range switch which is an issue and many F150's of my year, make and model. My vehicle was not listed as a recalled vehicle yet has the same issue as the other recalled ones. Total repairs are going to cost around $2000. I have not driven my vehicle since the incident and I am frightened after almost losing control from the hard shifting. Prior to this the vehicle ran great. It was an out of nowhere issue. the truck has been maintained well, with all oil changes, and regular maintenece. there is less the 96,000 mile son the truck as well.

Filed Aug 31, 2025 · Acceleration, Transmission · CA

Hard downshifts from 5 to 4. At low speeds, like parking lots it shifts hard from 1 to 2. At freeway speeds while attempting to pass instead of dropping a gear to passs it downshifts to 1st, rpm’s shoot up and it results in having to pull off stop and place in park. Once in park back to D and able to take off. At any speed from 30 mph or more there is a sort of “tap of brakes” feeling every .15 of a mile.

Filed Aug 6, 2025 · Acceleration, Transmission · PA

When driving on the interstate with the normal flow of traffic at 55mph, the vehicle abruptly downshifted from 6th gear to 1st gear causing the the vehicle to lock up an nearly caused an accident. This was followed by a a mechanic warning light and the speedometer to lock out and no longer work. Once pulled over, the vehicle was powered down. When the vehicle was turned back on operation returned in a limp state.