2017 Ford Expedition acceleration problems

Filed Jun 4, 2026 · Acceleration, Engine · OK

Vehicle suddenly shifts to 1st gear while travelling at 45MPH or more causing immediate jerking and slowing of vehicle, placing driver, occupants and other drivers at risk of crash. In this condition, the speedometer reads 0MPH while still travelling and other warnings on dash are: Airbag Failure, Blindspot system fault, Cross traffic system fault, and See manual. Vehicle then appears stuck in 3rd gear until pulling over, stopping the engine and restarting. All warnings clear after restarting. This has occurred many times without proper diagnosis from Ford service. Now vehicle is doing this two to three times weekly and is currently in Ford service. Now diagnosed as Lead Frame Failure. Estimated cost is $1,523.38 and Ford refuses to pay for repair due to no active recalls on this specific vehicle, however the same transmission issue is in recall on same year model F-150's with the same transmission.

Filed Apr 22, 2026 · Acceleration, Transmission · FL

Sudden and severe downshifts occurred at roadway and highway speeds resulting in sudden speed decrease. Also revving and loss of power occurred. Problem codes P0706 & P0707 were logged which point directly to the Transmission Range Sensor (TRS), which is integrated into the molded lead frame. This sudden and uncontrolled loss of speed caused significant danger to vehicles, ocupants, and other vehicles.

Filed Jul 15, 2025 · Acceleration, Electrical · AZ

Back up computer screen not working every time vehicle is put in reverse. Talked with service manager -about 6months ago told if unit does not malfunction when being tested cannot check problem.but if I would leave car for a day they would try at verious times to see it not working.no warning only screen telling us back up screen not working or screen goes to blue screen with nothing on it.

Filed May 7, 2025 · Acceleration, Transmission · PA

For 1.5+ years, the transmission will unexpectedly and suddenly downshift into 1st gear without warning. Which causes a sudden deceleration. No warning lights before it happens. It occurs randomly and at different speeds. It has happened over 20 times. I've experienced it happening at speed ranging from 35mph to 65mph. The gear shifter was in the drive position each time this issue occurred. The suv is the 2017 ford expedition EL with the 3.5L ecoboost engine with 6 speed automatic transmission. No check engine light before or after the issue (so no OBD2 code to read) a big yellow warning appears during/after saying "see manual". Sometimes the issue will resolve in a few seconds. The suv has not been to the dealership yet for this issue. But i will be contacting ford today.

Filed Mar 18, 2025 · Acceleration · VA

Driving vehicle on road and car lost all acceleration power. The check engine light appeared and the problem was diagnosed as a faulty throttle body. This exact same issue has been identified as a recall item with an extended warranty (ten years or 150,000 miles) on other Ford vehicles but for some unknown reason the 2017 expedition is not covered. THIS IS A VERY SERIOUS SAFETY ISSUE... I did speak to Ford and they offered no assistance.

Filed Dec 13, 2024 · Acceleration, Electrical · NC

I can be driving up a hill the traction control warning light and hill decent braking light come on causing the vehicle speed to drop the vehicle shakes acting like it is trying to stop. Once you stop and turn the vehicle off the error codes go away . This problem has been occurring since early September it currently only occurs going up hill on one road

Filed Sep 9, 2024 · Acceleration, Electrical · MO

Transmission unable to shift out of park periodically, transmission downshifting at highway speeds and engine shutting down. Speedometer and RPM guage going crazy then no longer working.

Filed Jul 13, 2024 · Acceleration, Fuel system · OR

In 2022, around mileage of 67000, our SUV was climbing a steep road when it suddenly made a pop sound & went into limp mode with the wrench light showing and the engine sounding rough. It felt like no fuel was getting to the engine & the gas pedal was non-responsive. The RPMs didn't change when the gas pedal was pressed. The grade was so steep, we barely made it to the side of the road without rolling backwards into traffic behind us. After turning the engine off and sitting about 10 mins, we tried starting the engine again. The car seemed to have reset itself! It ran fine; the wrench light turned off, and the gas pedal was responsive again. (At the time, we were on vacation at the coast and had traveled from our home at about elevation 3500'. We had also recently had to buy gas from a small no name gas station, so we feared we may have gotten bad fuel). From there, we returned home without re-occurrence, and we used fuel cleaning additive to our Chevron fuel for the next 2 fill ups. Then, approximately 600 miles later on a flat grade, it happened again without the pop sound. We immediately went to our Ford dealer who found no error code but found our purge valve stuck open. They recommended we replace it, which we did, and we operated the vehicle for 2 years without re-occurrence and using only Chevron gas. Recently, it happened again! Luckily, we weren't on a steep grade this time or on the freeway, but if a car would have been behind us, we would have likely been rear ended, especially had we been on the freeway. Once again, we shut the engine off, and it reset with the wrench light disappearing, so no diagnostic code got thrown AGAIN! Based on many complaints, this appears to be a common problem. It's very dangerous as the car immediately losses power to a crawl no matter what speed you are traveling at the time. It seems to be the electronic throttle body in instances where the SUV can stay running, so a code can be obtained before it resets.

Filed Oct 4, 2023 · Acceleration, Electrical · CA

Driving at highway speed, vehicle gauges drops to zero and transmission stays at 3rd gear. Unable to know what travel speed is while trying to exit safety off highway. Have to turn off engine to reset issue, but no way to figure out what happened.

Filed Jul 25, 2022 · Acceleration · OK

Vehicle was jerking and a wrench illuminated on panel. Was able to get out of traffic to side of road but very dangerous as we had to just coast to safety. Took vehicle to dealership...code threw for throttle active stuck. This happened on March 23, 2022. Than again on July 23, 2022, was on interstate and wrench illuminated and again stalled. 75 Mph traffic and thank goodness we was able to clear traffic to side of road. Limped home. 1st incident mileage was 118395. And second incident 128024.3