1. 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.
    Related To: Mitchell 1
    Photo courtesy of Ford
    Reprogram the TCM and PCM using the latest software level of the appropriate Ford diagnostic scan tool.
    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.

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