Harsh upshifts between 1st and 5th gears
Ford technical service bulletin TSB 20-2043 for 2020 Ford F-250 SD, 2020 Ford F-350 SD and 2020 Ford F-450 SD and others.
- Bulletin number
- TSB 20-2043
- Component
- Power train: manual transmission: column shift assembly
- Summary
- Some 2020 F-Super Duty vehicles equipped with a 6.7L engine and 10R140 transmission and built on or before 15-Jan-2020 may exhibit harsh upshifts between 1st and 5th gears. This may be due to various strategies within the transmission control module (TCM) software. To correct the condition, follow the Service Procedure to reprogram the TCM.
Owners of these vehicles have filed 133 complaints in the transmission category.
Vehicles covered
- Ford F-250 SD 2020 2020
- Ford F-350 SD 2020 2020
- Ford F-450 SD 2020 2020
- Ford F-550 SD 2020 2020
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