2021 Ford Ranger power train problems

“I am reporting a potential drivetrain safety defect involving the rear driveshaft bearing on my 2021 Ford Ranger FX4 Lariat. On September 3, 2025, I brought my truck to Larry H. Miller Ford Lakewood after experiencing an intermittent abnormal whistling/mechanical noise while driving. The vehicle had 38,275 miles and was still under warranty. Ford retained it until September 6 but could not reproduce or diagnose the noise. This is documented on service invoice #415969. The noise continued and progressively worsened, eventually accompanied by increased vibration. In early July 2026, an independent repair shop identified a rear driveshaft problem and recommended replacement. I returned to Ford on July 15, 2026, where the rear driveshaft bearing issue was subsequently confirmed. Dealership personnel, including the service technician and service department director, advised that the vehicle was unsafe for my intended highway use. I am concerned that continued operation, particularly at highway speeds, could result in further drivetrain deterioration, loss of propulsion, or other dangerous consequences affecting myself and other motorists. Despite the original…”

“I was parking the truck and I put it in reverse and no reverse whatsoever. I put it and drive them back and reverse nothing. I put it in park turned it off restarted it and reverse worked took it to the dealer and they said the transmission has to be replaced due to faulty parts from Ford on the original transmission although it might be covered under the 200,000 mile powertrain warranty it is still a big inconvenience and this is not the first time I was having problems with the transmission if I have to pay for it it could be up to $8500”

“The 2021 Ford Ranger Lariat , mileage 42,362 would not go into reverse, the wrench was lit up on dash. Shut Truck off it cleared the code, immediately took it to Ford dealer. Was sent home because the tech said the light was off so he couldn’t diagnose. After reading about the issue we made the appt for a diagnostic scan. The codes were P2704, P0772 . The truck has been with dealership since 09/14/2026. It’s the 10R80 transmission with a service bulletin out on the CDF drum.mechanical defect that Ford knowingly sold to unsuspecting consumers. I was able to get a goodwill assist from Ford to help with repair , told they would cover 40% but are now only wanting to pay 16% . The time warranty is over is by 33 days the mileage is under by 18,000 miles. Did notice some sluggish shifting but thought it was from the engine shut off when stopped at lights months ago but not reported. I think Ford should have to cover this at 100% seeing that the Truck was purchased on 03/10/2025 with 24,809 miles , we asked the dealership about the transmission and was told it was sound.”

“While driving from [XXX] to [XXX] on XXX my 2021 Ford Ranger's dash light came on and I noticed harsh shifting and the vehicle began jolting unpredictably while I was driving at highway speeds. To avoid imminent danger, I pulled off the 101 and slowly drove to the closest Ford dealership, Vista Ford Lincoln of [XXX], in order to have the truck assessed. Technicians performed a diagnostic evaluation and retrieved DTC P0766 (shift solenoid "D" performance/stuck off) and P2703 (transmission friction element "D" apply time.) These codes are the documented engineering signature of internal CDF clutch drum bushing migration- a known, widespread manufacturing defect inherent to Ford's 10R80 transmission platform. Vista Ford confirmed the transmission required a complete replacement, but assured me that I could slowly drive the truck home to [XXX] for the repair. [XXX] of [XXX] confirmed the error codes and quoted me 9,857.86 to repair the existing transmission and 13,295.84 to replace the transmission. I reached out to Ford Corporate (case number: [XXX]) who explicitly refused a reasonable goodwill remedy, offering only a 10% discount against [XXX]'s replacement…”

“The contact owns a 2021 Ford Ranger. The contact stated that while driving at an undisclosed speed and shifting gear, the transmission shifted hard. The vehicle was taken to an independent mechanic and was diagnosed with transmission failure. The vehicle was repaired. The dealer was contacted and informed the contact that the transmission was operating as designed. The manufacturer was made aware of the failure and stated that there was no recalls on the VIN associated with the failure. The failure mileage was approximately 59,000.”

“Transmission hard shifts in low gear and sometimes slips gears or revs up engine without accelerating then slams into gear lurching forward. Had transmission oil checked by dealer and they said it looked great. Happened 29 July several times and again 5 Aug all throughout the day.”