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December 24, 2021 Service bulletin

Some 2020-2022 Explorer/Aviator/Police Interceptor Utility vehicles and 2021 F-150 vehicles equipped with...

Ford technical service bulletin TSB 21-2434 for 2021 Ford F-150, 2020-2022 Ford Explorer and 2020-2022 Lincoln Aviator.

Bulletin number
TSB 21-2434
Component
Power train: automatic transmission: control module (TCM/PCM/tecm)
Summary
Some 2020-2022 Explorer/Aviator/Police Interceptor Utility vehicles and 2021 F-150 vehicles equipped with a 10R80 MHT automatic transmission may exhibit a harsh/delayed engagement and/or a harsh/delayed shift with or without an illuminated malfunction indicator lamp (MIL) or diagnostic trouble codes (DTC) P0729, P0731, P0732, P0733, P0734, P0735, P0736, P076F, P07D9, P07F6, P07F7, P2700, P2701, P2702, P2703, P2704 and/or P2705 stored in the powertrain control module (PCM). This may be due to sticking valves in the main control valve body. To correct the condition, follow the Service Procedure steps to perform the PCM - Transmission Accelerated Main Control Break In routine for the appropriate clutch(s) and/or overhaul the main control valve body.

Owners of these vehicles have filed 1,047 complaints in the transmission category.

Vehicles covered

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