2017 Ford F-150: check engine light

Filed Oct 27, 2026 · Engine, Transmission · 59,060 miles · LA

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 federal safety agency Hotline to report the failure. The contact stated that the failure was persistent. The contact received notification of the federal safety agency 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.

Filed Oct 15, 2026 · Acceleration, Electrical · OH

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 chimes and flashing warnings, left me unable to keep pace or maneuver and caused anxiety and distraction. 5. False overtemp codes mislead owners. A typical owner would likely need a tow and a costly cooling system diagnosis over a $40 sensor glitch. Even as a former mechanic, I spent hours chasing a nonexistent cooling problem. Not inspected by a dealer, manufacturer, police or insurance. I diagnosed it with live scan data and confirmed it by replacing the sensor. The original sensor is retained and available for inspection. I ask the federal safety agency to investigate the CHT failsafe strategy on Ford 2.7L EcoBoost engines: whether the PCM checks CHT plausibility against coolant temp before cutting power, and whether a single-sensor fault should ever remove engine power while driving.

Filed Sep 7, 2026 · Transmission · FL

The vehicle has a ten speed transmission. It started with the transmission making minor down shifts from 3 to 1 and then 7 to 1. Without any engine warning light. It has subsequently started a severe shift from 3 to 1 and 7 to 1 and the engine light has now come on. This creates a dangerous situation when it down shifts from 7-1 when your speed is 45 mph of above. I contacted a dealership regarding a repair but was told there is no recall and it would cost $215 to diagnose and from $4,500 - $8,000 for the repair. It is a known issue to the Ford dealers but without a recall they are gouging the consumers who is at risk of accident.

Filed Aug 20, 2026 · Transmission · 155,062 miles · TX

The contact owns a 2017 Ford F-150. The contact stated that after receiving notification of the federal safety agency Campaign Number: 26V237000 (POWER TRAIN), the dealer was contacted, and a mechanic was sent to the residence to perform a software update on the vehicle. After the software update was performed, the vehicle experienced hard shifting, and the gear became stuck in 5th gear and 3rd gear on occasion, with the check engine warning light illuminated. The vehicle was taken to the local dealer, who diagnosed that the transmission leadframe was faulty and needed to be replaced. The vehicle was not yet repaired. The failure mileage was 155,062.

Filed Aug 13, 2026 · Transmission · 168,000 miles · NC

The contact owns a 2017 Ford F-150. The contact stated that while driving at various speeds, the transmission downshifted and upshifted erratically. The power train and check engine warning lights were illuminated. The contact received notification of the federal safety agency Campaign Number: 26V237000 (Power Train), and the vehicle was taken to the dealer, where the PCM software update was performed; however, the failure persisted. The contact later received a notification that the molded leadframe would be replaced as necessary under an extended coverage program. The vehicle was returned to the dealer, where it was diagnosed that the leadframe had failed and needed to be replaced; however, the contact was informed that the repair was not covered under the program because the diagnostic trouble codes did not meet the required specifications. The contact stated that the manufacturer failed to honor the recall repair. The manufacturer was notified of the failure and informed the contact that the repair would be at the owner's expense, and the contact was advised to retain the receipts. The vehicle was not repaired. The failure mileage was approximately 168,000.

Filed Aug 11, 2026 · Acceleration, Engine · LA

Ford Motor Company put out a recall on the PCM. I had the recall performed and it has caused more damage to my truck. It now has eratic shifting, stuck gears, and going into limpmode. Ford Forums show that this is an ongoing issue after the reset is performed creating an unsafe vehicle to drive. The check engine light is now on and was not prior to this recall reset.

Filed Aug 7, 2026 · Engine · 106,000 miles · NC

The contact owns a 2017 Ford F-150. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed with cam phaser failure. The contact was informed that the cam phaser needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the federal safety agency Hotline to report the failure. The failure mileage was approximately 106,000.

Filed Jul 1, 2026 · Transmission · GA

Lead Controller in the Transmission. Truck with faulty transvmission is at a local authorized Ford Dealership. Diagnostics show codes for the recall on transmission. First while driving on a local highway, at approximately 45 mph, the lights on the steering column that signal the gear began to flash and the truck downshifted. Again a second time while traveling on Interstate I-95, at 70 mph the lights on the steering column that signal which gear the transmission is in began flashing. The light on the dash that show 1-6 gears also began flashing. The truck downshifted and squealed the tires almost causing a rear-end collision from the car behind me. The lights on the dash and the check engine light lit up showing a wrench. I had to pull the truck over to the emergency lane. It was after this that I received the letter telling me of the recall and I took the truck to the Ford Dealership. It has been there for approximately 2 months. Ford has NOT issued instructions to stop driving under this safety recall; HOWEVER this is an extremely dangerous problem and it is NOT safe to operate. The safety recall is #26S28. the federal safety agency Recall is #26V237. Please have someone respond to me regarding this issue. There has been NO compensation of a rental , etc.

Filed May 22, 2026 · Transmission · 138,000 miles · WA

The contact owns a 2017 Ford F-150. The contact stated that while driving at an undisclosed speed, the vehicle unexpectedly downshifted, while the check engine warning light and service warning light were illuminated. The contact stated that the RPMs rapidly increased from approximately 1,500 RPM to 5,000 RPM. The contact also stated that the gear indicator lights became inoperable. The vehicle was able to restart; however, the failure recurred. The vehicle was taken to an independent mechanic, where diagnostic trouble codes P0706 and P0707, related to the transmission, were retrieved. The vehicle was not repaired. The contact later received notification of the federal safety agency Campaign Number: 26V237000 (Power Train); however, the parts required for the recall repair were not yet available. The dealer was contacted but did not diagnose or repair the vehicle. The dealer confirmed that the remedy parts were unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the failure, and a case was opened. The approximate failure mileage was 138,000.

Filed May 9, 2026 · Acceleration, Electrical · VA

Took my 2017 Ford F-150 in for a diagnostic on May 8 2026 for wrench symbol check engine light and issues down shifting and sliding tires shop manager and technician claimed the vehicle is unsafe to drive and talked to the Service manager deemed the vehicle unsafe to drive wanted it grounded do to the safety concerns related to Recall 26S28 (PCM/TRS) stated the down shifting is cause catastrophic failure to all mechanical components transmission engine and rear end kidding the tires especially in wet weather the truck would cause a accident..cause the sliding of the tires..so my truck is at APPLE FORD OF LYNCHBURG GROUNDED as of May 9 2026 I still owe on the truck and have no ride dealer nor manufacture was willing to pay for a rental that cost $65 a day wanted me to pay then reimburse me once a remedy was available I cant afford that..1600 a month we are roughly 2 months away from hopefully a remedy being available stated by recall website.. so if my truck is showing all the signs of the described in the recall(26S28) has stated in it why is FORD not putting a DO NOT DRIVE on the recall for all these trucks if the technician seems them unsafe.. I shouldn't have to pay for a rental I cant afford cause ford is lacking a remedy and wont even buy it back cause of safety issues codes PO732 INCCORECT 2ND GEAR RATIO

Filed May 5, 2026 · Electrical, Transmission · VA

going down highway (60mph) a sudden rear wheels lock up jerking the steering wheel out of my hand sudden down shift causing me to be put in the median...wrench symbol pops up trucks in limp mode... no 1-6 gear light or light to show if i am in P.R.N.D.M.1.2. Truck won't start back up until it wants too if you cut it off in limp mode (factory reset) unhooking negative battery cable dosent work. Check engine light appear had is scanned showed issues with body control, modules power control modules and the Transmission range sensor power steering loss of voltage.. It constantly does it when ever it wants to with no warning with conditions getting worse truck now pops out of gear when stopped if in limp mode. Wrench symbol never disappears still no 1-6 light on the dash.the sudden down shift only occurs sometimes but down shift is called a money shift its catastrophic to all mechanical components (Transmission.Motor. Rear End) truck being diagnostic at Ford in a few days..Cooperate contact has been made multiple times with no help!!!

Filed May 4, 2026 · Transmission · VA

At 90,181 miles, the 10R80 transmission in my 2017 Ford F-150 suffered a catastrophic internal failure. The vehicle exhibited violent, hard shifts between gears 2 through 4 with no check engine light or warning indicator, giving zero warning the drivetrain was failing. Sheehy Ford in [XXX] reproduced the condition. Their diagnosis on RO XXX: "HARSH 4-6 SHIFT-INTERNAL FAULT." Teardown revealed a fractured CDF drum with metal debris that migrated into the valve body. The dealer removed the transmission and performed a full overhaul, replacing the CDF drum, clutch cylinder, forward clutches, and valve body, and flushed the cooler and converter. Total cost: $6,846.30, entirely out of pocket. This is a serious safety defect. A fractured CDF drum can cause sudden loss of gear engagement, unexpected downshifts, or transmission lockup at highway speed, any of which can result in loss of vehicle control and severe risk of injury or death. I use this vehicle daily to transport my two young children (ages [XXX] and [XXX] ) to and from daycare. This defect endangered their lives, my life, and other motorists, all with no diagnostic warning. This failure is consistent with widespread defects in Ford's 10R80 transmission, currently the subject of class-action litigation. A transmission should not need a $7,000 overhaul before 100,000 miles. Ford is aware of this pattern and has failed to recall. I am filing to ensure the federal safety agency has a complete record of another 10R80 failure that directly endangered occupants, including small children. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)