Do you hear a whine coming from your Ford’s 10-speed automatic transmission. Take a look at these Ford Special Service Messages:
Ford Special Service Messages:
SSM 47812
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.
Applicable Vehicles:
2017 – 2019 Truck: FC P552N F-150
2018 – 2019 Truck: B8 U553N Expedition
2018 – 2019 Truck: B9 U554N Navigator
2018 – 2019 Car: ZG S550N Mustang
2019 Truck: FG P375N Ranger
SSM 47515
Some 2017-2018 F-150, 2018 Expedition/Navigator, 2018-2019 Mustang 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.
Where The Whine Comes From:
The SSM claims that the whine is due to the offset nature of the gear drivetrain. The 10R80 pump is gear driven off of the torque converter. So essentially, the whine is happening because the pump gears are not meshing properly. The only way to fix that is to pull the pump and replace it (and even then it probably won’t fix the whine).
Below is a photo of the pump (in the red square) installed, and the photo below that shows the valve body and pump removed so you can see the gear.
Click The Images To Enlarge Them
