2020 Ford F-150 acceleration problems

Filed Oct 19, 2026 · Acceleration, Engine · NC

The Transmission has failed. Hard shifting, random gear switching while driving at any speed. i put it in reverse and it went forward while in reverse. it slows itself down while on the highway. it acts like it wants to turn off while running, its a matter of time before I'm driving down the road and it decides to stop suddenly and cause an accident. I got it diagnosed by truck works garage and they confirmed that the shifting was all over the place with random high rpms. The dealership quoted me $2500 just to diagnose the problem so i had it diagnosed at truck works garage for $160 to confirm the issues matched the tsb's and recalls that they wont acknowledge my VIN for. The failure 1st appeared 5 years ago when i was under warranty, i took it in (and have the work order still dated 10/22/202) for hard shifting and they brushed me off and sent me away with false information about the cause. 5 years ago (25 days before i brought it in for the hard shifting) there was a tsb 21-2315 published for the exact issue on my truck, They ignored it and sent me away without fixing anything or addressing the issues.

Filed Aug 26, 2026 · Acceleration, Electrical · SC

When driving the vehicle it randomly jumps gears, when taking off it went into limp mode today. My wife almost got slammed by a semi truck! I called ford and they are not interested in hearing my case only wanting me to pay these outrageous fees. The pcm recall fix did not fix the gears jumping

Filed Jul 6, 2026 · Acceleration, Transmission · FL

Over the past year (2025) we have noticed that our F150 King Ranch occasionally was having a rough or harsh shift between the 7-8 gear. We took the Truck to the dealer where we purchased the Truck, Mullnax Ford of Central Florida, in the summer of 2025. We left the vehicle with the service manager, later he called us and indicated that the technician could not replicate the issue. Several months later in November, 2025, with the problem recurring all the time and also happening at other shift points. We took the truck back to the dealer, Mullnax Ford of Central Florida, 1551 E Semoran Blvd, Apopka, FL 32703. We left the vehicle with the service advisor, Sam. Later that day the service manager Sam said the technician “test drove the truck and said needs a new transmission at a cost of almost $10,000.” Based on research I conducted I determined that there was an existing TSB 25-2475 recently issued October 25, 2025 regarding this harsh/delayed shifting issue on the 10R80 transmission and applicable to our Truck. We have taking the truck to 2 Ford dealers asking them to perform the diagnostic process outlined in TSB 25-2475 The harsh shifting is not only annoying, the sudden sharp shift especially at lower speed presents a possible significant safety risk. The harsh shift many times causes the vehicle to lurch unexpectedly. The truck is only 5 years old and has less than 100k miles We sent certified letters to the CEO of Ford and to the Ford Customer Relationship Center, with no response. This is a wide spread problem and is well known to Ford.

Filed Dec 19, 2025 · Acceleration, Fuel system · TX

Vehicle is showing symptoms similar to common reported problems from people who owned Ford F-150 with Eco-boost. Symptoms such as: Engine had difficulty starting Transmission shifting Rattling noises coming out from the engine compartment Oil leaks coming out the tail pipe Gauge is showing engine is over heating Turbo is having a hard time accelerating

Filed Sep 3, 2025 · Acceleration, Transmission · TX

Acceleration without foot on gas pedal, erratic & harsh shifting, and slipping gears

Filed Sep 2, 2025 · Acceleration · PA

While overtaking another vehicle on a 2-lane highway, the accelerator pedal broke and would not allow me to accelerate. Shortly after this, the vehicle I overtook had caught up, and I was forced to move back behind them in heavy traffic as there was also oncoming traffic. With no accelerator, I had to pull off to the side of the highway. Losing acceleration is a serious hazard, impacting the ability to safely control the vehicle and react to situations. This was a sudden failure with no warnings. Nobody has seen the vehicle yet. I found a way to manipulate the acceleration system/assembly in a way that would allow me to get away from the busy highways. This involved me holding part of the assembly with one hand while pushing on the pedal with the other hand. I figured it was better to find a safer place to park the vehicle. Upon further inspection, it appears that a plastic part broke somewhere. I do not think that plastic should be used in heavy use and safety critical systems. Everything is available for inspection as of now if needed.

Filed Oct 12, 2024 · Acceleration, Fuel system · CA

The transmission slips when giving it gas. I lose power when I excelerate Sometimes. Sometimes the truck excelerates when I'm not giving It throttle. Transmission jumps all over. The transmission seems to be very rough shifting back and forth

Filed Sep 16, 2024 · Acceleration, Brakes · SD · crash

Cruise control was set at approx. 62 mph driving on the Interstate. An exit was taken and coming down the off ramp the truck would not slow down. It seems the brakes did not disconnect the cruise control. Brakes were both pumped and firmly depressed. No response when the gear shift was placed in a lower gear. The electronic system did not shut off after the ignition was placed in the off position. An inspection is warranted, expected and welcome. This was a Sudden Unintentional Acceleration (SUA) incident/accident!!! Numerous other vehicles were placed in danger while crossing a major intersection. Two fire trucks responding to an emergency were passed at 50 miles an hour. Many other occupied vehicles and individuals at an apartment complex were in danger of being killed or injured. As of right now the vehicle has not been inspected by the insurance claims adjuster, so right now it has not been reproduced or confirmed by a dealer or independent service center (but is welcomed to be done). The vehicle or components have not yet be inspected by the manufacture, police or insurance representative (but I would be willing to allow it). There was no warning lamps, messages or other symptoms of the problem prior to the failure. It was totally unexpected and a complete surprise.

Filed Sep 2, 2024 · Acceleration, Driver assistance · TN

This happens consistently,while driving with the cruise control,the truck takes off and speeds up almost causing the truck to ram other vehicles. Then the truck shudders and surges before throwing up several codes. I have read this is a problem with many Ford trucks. I feel like our lives are in serious danger . I was hoping there would be a recall because this is leaving customers in situations that may cause injury or death.

Filed Aug 17, 2024 · Acceleration, Brakes · VA · crash

I was in an accident and the automatic braking sensor did not kick in even though there was a vehicle directly in front of me. As a result, my collision warning never sounded and the active braking feature of my vehicle never engaged.