Technical Service Bulletin 21B03-S4 — 2021 FORD F-600 SD
POWER TRAIN
Bulletin Details
| TSB ID | 21B03-S4 |
| Manufacturer | |
| Vehicle | 2021 FORD F-600 SD |
| Component | POWER TRAIN |
| Communication Date |
Bulletin Summary
In all of the affected vehicles, a distressed No. 1 planetary needle bearing inside the ring gear assembly will generate contamination that may produce rough shifts. A wrench light is likely to come on, and the transmission may go into safe mode and only operate in seventh gear. As damage progresses, the transmission may only be capable of limited vehicle speed or may not engage in forward or reverse.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.
Other TSBs for the 2021 FORD F-600 SD
SSM 50830
EQUIPMENT ADAPTIVE/MOBILITY