2017 FORD F-150 Complaints

The contact owns a 2017 Ford F-150. The contact stated that during cold starts, there was an abnormally loud rattling sound coming from the engine compartment. The cause of the failure was not yet been determined. The manufacturer and local dealer were notified of the failure, but no assistance was provided. The failure mileage was 76,000.

The contact owns a 2017 Ford F-150. The contact stated that while his son was driving at various speeds, the vehicle jerked while in first gear and briefly lost motive power before slamming into gear. Unknown messages were displayed on the instrument panel. The contact stated there was an abnormal sound coming from the transmission. The vehicle was taken to a dealer; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that an independent mechanic arrived at the residence to inspect the vehicle. The independent mechanic diagnosed the vehicle with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The contact stated that the failure had progressively gotten worse. The manufacturer was not notified of the failure. The vehicle was towed to the residence and had not been driven since the failure. The failure mileage was approximately 100,000.

My Ford F150 has started to down shift without me changing any gears. It downshifts and at times after the down shift when the vehicle stops and will not proceed. I need to wait or restart the truck before the truck will act normally. I have not been able to determine the variable that make it down shift on it own.

The contact owns a 2017 Ford F-150. The contact stated that while coming to a stop, the contact depressed the brake pedal, and the brake pedal vibrated abnormally. There was no warning light illuminated. The contact received notification of NHTSA Campaign Number: 25V236000 (Service Brakes, Hydraulic); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was contacted and confirmed that parts were not yet available. The manufacturer was not made aware of the failure. The failure mileage was approximately 92,000.

Multiple occasions in recent weeks where truck has downshifted rapidly and unexpectedly at cruising highway speeds from 6th gear to 2nd. First incident was on March 8, 2025, while pulling a horse trailer at highway speed of 55mph where truck downshifted from 6th to 2nd causing a sudden slow down of vehicle and risk of crash while pulling trailer. Most recent incident occurred while accelerating as truck was shifting upward through gears it suddenly downshifted to 2nd causing rear wheel lock up. In all incidents the check engine light would come on, pulling off to side of road, turning power off and back on again would reset the truck and check engine light would go away. On April 10, 2025 the truck was taken to the local Ford dealer for a routine service and issues with the transmission downshifting were pointed out and asked to be looked at. The report said there is "TCC slipping actual and TCC desire slipping 100RPMS". The recommend repair was a complete transmission replacement due to high milage. Vehicle currently has 121k miles. I declined repairs at that time due to cost of complete transmission replacement. On April 26, 2025 truck was taken to local SMOG station for routine SMOG inspection for DMV. Truck failed test due to check engine light being on and error code being reported. The error code being reported is "P0720 - Output Speed Sensor Circuit".

The transmission has been chattering, slipping, and making weird noises since I bought the truck. There are times where the truck will roll forward several feet after I've placed the shifter in park and remove my foot from the brake pedal. In my opinion these issues are definitely dangerous and can get someone seriously injured or fatalities could occur.

I have had 2 incidents where my vehicle has suddenly shifted into 1st gear at highway speeds(65-70+mph). I was alone in the vehicle each incident.This caused a sudden and violent loss of speed and nearly locking up the rear wheels, both while entering the freeway. Vehicles behind me had to take evasive action and I had to quickly maneuver to the side of the road. The vehicle operated normally immediately following both incidents. This truck has a 10R80 transmission and has known failures of the CDF drum due to poor construction/quality of internal bushings(pressed in). Ford has since revised this(welded, anti-walk bushing) in newer vehicles but has not addressed the vehicles prior to the revision. I have had no warning lights or codes, nor any other indications this issue was occurring. This vehicle has been maintained well and all services/intervals performed at Ford service departments. I have an appointment in the coming weeks with a local Ford service department for a diagnostic check. The service rep advised based on details I have provided I have CDF failure. This issue has a cascading effect and may require full transmission replacement to rectify. All warranties have expired, repair costs can exceed 30% of current vehicle value.

The contact owns a 2017 Ford F-150. The contact stated while driving at an undisclosed speed on an incline, the vehicle suddenly jolted and briefly started to shudder until reaching the top of the hill. The vehicle returned to normal functionality, but the failure became a regular occurrence. The check engine warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was approximately 93,000.

WHILE DRIVING 50 MPH TRUCK DOWNSHIFTED RADICALLY CAUSING REAR WHEELS TO LOCK UP AND SQUEEL/ simultaneously THE PRNDL LIGHT IN DASH FLICKERS ALONG WITH THE GEAR RANGE

Transmission slightly lunges forward after a delay in pushing the gas pedal down - like a throttle surge. The item is not available for inspection. Safety put at risk relative to unexpected slight acceleration. Independent Service Center has verified the problem on 03.25.2025 after I asked for a diagnosis. I was given a TSB 23-2250 for further processing with the local Ford Dealer, since vehicle was under a paid extended warranty. The vehicle is in the shop now for faulty phasers, leaking oil pan, and the subject hesitency and surge of the transmission. The suspected transmission problem has not yet been confirmed by the Ford Dealer Service Center. There were no warning messages or warning lamps indicating I had a problem. The action relative to the acceleration surge just happened. Attachment 1 was the mechanics invoice for making a diagnosis not a repair Attachment 2 was my note to the mechanic specifically outlining items to check for verification Attachment 3 was a TechServiceBulletin he stapled to my invoice informing me that there was a TSB out on the transmission.