2017 Ford Expedition power train problems
51 owner complaints filed with NHTSA name the power train on the 2017 Ford Expedition — 14% of all complaints for this model year.
What owners report
“Our 2017 Ford Expedition, has been diagnosed with a failure involving the molded lead frame/transmission sensor assembly in its 6R80 transmission. We were advised that the failure can cause the transmission to unexpectedly downshift at highway speed, resulting in sudden deceleration and possible…”
filed Jul 23, 2026
“I am reporting a severe, systemic manufacturing defect in the 3.5L EcoBoost engine timing system (cam phasers and timing chain) of my 2017 Ford Expedition that poses an immediate highway safety hazard. Approximately February 2026 Upon start up heard odd rattle type noise, a week later heard noise…”
filed Jun 23, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
During service and repair requiring removal and replacement of a crankshaft bolt and/or crankshaft damper, achieving proper torque of the crankshaft pulley bolt is critical. Incorrect torque may allow the bolt to loosen…
SSM 52314 · Service Bulletin/Repair Instructions · issued Mar 1, 2024
Power Train problems in other Expedition years
| Year | Reports | Share |
|---|---|---|
| 2025 Expedition | 4 | 15% |
| 2024 Expedition | 5 | 7% |
| 2023 Expedition | 11 | 17% |
| 2022 Expedition | 14 | 13% |
| 2021 Expedition | 105 | 46% |
| 2020 Expedition | 241 | 63% |
| 2019 Expedition | 208 | 44% |
| 2018 Expedition | 143 | 39% |
| 2016 Expedition | 35 | 16% |
| 2015 Expedition | 29 | 18% |
| 2014 Expedition | 34 | 48% |
| 2013 Expedition | 43 | 47% |
Other reported problem areas on the 2017 Ford Expedition
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.