TSBs

Reprogramming Ford F-Super Duty TCM

Jan. 15, 2025

Some 2020-2021 Ford F-Super Duty trucks equipped with a 6.7L engine may exhibit a low-speed downshift concern with automatic engine braking enabled.

Mike Mavrigian

Related To:

Mitchell 1

Reprogram the TCM and PCM using the latest software level of the appropriate Ford diagnostic scan tool.

Some 2020-2021 Ford F-Super Duty trucks equipped with a 6.7L engine may exhibit a low-speed downshift concern with automatic engine braking enabled.

This may be due to the software in the transmission control module (TCM). Reprogram the TCM and PCM using the latest software level of the appropriate Ford diagnostic scan tool.

About the Author

Mike Mavrigian | Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.