2017 Ford F-150 engine problems

“The contact owns a 2017 Ford F-150. The contact stated that while driving at 55 MPH, the check engine warning light illuminated, and the transmission unexpectedly downshifted. The dealer was contacted and made aware of the failure. The vehicle was taken to the dealer, where DTC: P0715 was retrieved. The contact was informed that the recall repair could not be completed without additional fault codes. The contact was advised to contact the NHTSA Hotline to report the failure. The contact stated that the failure was persistent. The contact received notification of NHTSA Campaign Number: 26V237000 (Power Train); however, the part to do the recall repair was unavailable. The manufacturer was contacted and made aware of the failure. The failure mileage was approximately 59,060.”

“On 10/13/2026, driving about 25 mph on a city street, my truck entered failsafe with no prior warning lamps or symptoms. The PCM cut most engine power, leaving no acceleration, and set P1285 (CHT Overtemp Sensed) and P1299 (CHT Overtemp Protection Active). The engine was not overheating; a $40 CHT sensor fixed it. Evidence: I watched live data on an Autel MaxiCheck MX808S-TS while driving during the events. CHT dropped to implausibly low values for brief moments, then immediately returned to normal values matching coolant temp. Coolant temp stayed normal throughout. Failsafe triggered on these momentary dropouts, never on an actual high reading. The PCM logic is unsafe: 1. A low-reading sensor dropout was reported as an overtemp. The PCM set two overtemp codes and no sensor circuit code. 2. It ignored contradicting data. CHT recovered instantly and matched normal coolant temp, yet the PCM acted on one momentary bad reading. 3. The response was disproportionate. A sensor glitch with normal coolant temp should set a check engine light and circuit code, not remove engine power while driving. 4. It creates a crash risk. Losing acceleration in city traffic, amid…”

“My 2017 Ford F150 has been downshifting unexpectedly now for weeks. There have been a few times when I literally lost control of my truck. I am afraid to drive on Highway. I use my truck for work and everything else. The local Ford dealership here Astro Ford in D'Iberville, Ms told me yesterday they will not repair my truck based on guidance from Ford...they recieved just a few days ago....saying the recall repair is inadequate and another remedy is being worked on. I cannot drive my truck to go to work to make money to pay bills. Based on what I have read they will also refuse to give me a car loaner of some kind for the time being. What XXX am I supposed to do now??????”

“My Transmission will townshift suddenly on the Highway. The error code I get is the (P0720) output-speed-sensor. I have noticed it has been recalled before. It is very scary when I am driving, and I know it has to be hurting my engine and transmission. I got a recall notice and thought it was for this, but it was for other error codes similar to this. According to my research they all seem to very closely associated. I took it to the dealership, and they said ford won't cover my issue.”

“On XXX, my [XXX] son was driving this 2017 Ford F-150 when the transmission suddenly downshifted while traveling on the road. The downshift was severe enough that the rear tires lost traction and the vehicle fishtailed, nearly resulting in an accident. The vehicle was taken to an authorized Ford dealer on 8/18/2026. We reported the sudden downshift, but the dealer was unable to duplicate the condition. The dealer performed Ford Recall 26S28/NHTSA 26V-237 and campaign 19G01, and the vehicle was returned on XXX. On XXX, only two days after the recall repair, the engine unexpectedly shut off while the vehicle was being driven. It restarted afterward. On XXX, the engine again unexpectedly stalled while the vehicle was moving. When the engine stopped, power-steering assist was lost and the driver had to coast the vehicle safely to the side of the road. The engine restarted immediately. When attempting to drive away, the transmission appeared to be starting in approximately third gear rather than first gear. After the vehicle was moving, the transmission eventually began operating normally again. Ford Customer Relationship Center was notified on XXX and formally…”

“In late July 2026, my son received a Ford safety recall notice (Recall #26S28) for his 2017 F 150 requiring a PCM software update. I brought the truck to Crown Motors in Redding on August 11th for the recall service. Before this appointment, the truck had no performance issues. Immediately after picking up the truck, a noticeable pinging sound occurred under acceleration. I returned the vehicle on August 12th, where Crown Motors confirmed the issue and advised spark plug replacement. This did not resolve the problem. I was also told that continued driving could damage the engine, so the truck remained at the dealership. Over the following days, Crown Motors worked with Ford engineering and repeatedly attempted software-related fixes. Crown staff informed me they believed the recall update caused the issue, and the first internal Ford team reportedly agreed. However, on August 25th, Ford’s second internal review determined the software update was not responsible and stated that all repair costs would fall on me—despite the clear timeline showing the problem began immediately after the recall service. Customer Service provided no assistance and refused to…”