Technical Service Bulletin 21B04-S3 — 2018 FORD F-550 SD
STRUCTURE
Bulletin Details
| TSB ID | 21B04-S3 |
| Manufacturer | |
| Vehicle | 2018 FORD F-550 SD |
| Component | STRUCTURE |
| Communication Date |
Bulletin Summary
Certain 2017 through 2020 Model Year F550 Equipped with Payload Plus Upgrade Package-Frame Rail Cracks: In some of the affected vehicles certain second unit body (SUB) upfits could cause stress points on the frame rail. Over time this stress could cause a crack in the fame rail behind the cab.
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 2018 FORD F-550 SD
SSM 51854
POWER TRAIN:MANUAL TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM)
SSM 49693
STEERING
TSB 20-2267
ELECTRICAL SYSTEM:ADAS:DRIVER MONITORING:CAMERA/SENSOR
TSB 20-2272
ENGINE AND ENGINE COOLING
SSM 49039
EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
TSB 20-2236
EQUIPMENT:APPLIANCE:AIR CONDITIONER
SSM 48877
EQUIPMENT
TSB-20-2105
ENGINE AND ENGINE COOLING
SSM 48537
ELECTRICAL SYSTEM
SSM 48300
POWER TRAIN