Ford F-250 SD 2020 — technical service bulletin
Bulletin SSM 48820 · NHTSA communication 10176116 · issued May 14, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2020
model years
4
vehicle entries
Official summary
Some 2020 F-350, F-450, and F-550 F-Super Duty chassis cab vehicles equipped with a 6.7L diesel engine and 10R140 automatic transmission may exhibit a delay/bump feel when pulling away from a stop. This may be due to the neutral idle feature that automatically reduces the load on the engine when the vehicle stops, and the gear selector is in DRIVE to reduce fuel consumption and emissions. The transmission automatically resumes operation when the brake is released. The neutral idle feature activates when the transmission is sufficiently warmed, and the vehicle is on level grade. Do not attempt
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.