6.7L – 10R140 Transmission – Harsh Upshifts – 2020 Ford F-Super Duty
NHTSA ID Number: 10171862 Manufacturer Communication Number: TSB 20-2043 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, … Read more