Ford Expedition 2017–2019 — technical service bulletin
Bulletin SSM 47812 · NHTSA communication 10155570 · issued Feb 19, 2019
Technical service bulletin
communication type
Power Train
component
2017–2019
model years
10
vehicle entries
Official summary
Some 2017-2019 F-150, 2018-2019 Expedition/Navigator/Mustang, 2019 Ranger vehicles equipped with a 10R80 transmission may exhibit a whine noise. This may occur at idle and while driving coming from the bell housing and front pan area of the transmission. The whine noise may become louder when at operating temperature and increases with higher engine RPM in the PARK position. A small amount of whine noise is considered to be characteristic of the 10R80 transmission due to the offset gear drivetrain in the front support and has no effect on durability.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.