Technical Service Bulletin 21TS-01 — 2017 WESTERN STAR 4900
EQUIPMENT
Bulletin Details
| TSB ID | 21TS-01 |
| Manufacturer | |
| Vehicle | 2017 WESTERN STAR 4900 |
| Component | EQUIPMENT |
| Communication Date |
Bulletin Summary
Technical Service Letter for Detroit Bearing Failures - Standard Diagnostic Times. DTNA is increasing repair strategies for determining the root cause of Detroit DD heavy duty lower end bearing failures. To support this strategy change, Detroit now has two (2) Standard Diagnostic Times (SDTs), easy and difficult, which can be applied to repair orders.
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 2017 WESTERN STAR 4900
20TS-06
EQUIPMENT ADAPTIVE/MOBILITY
SBW72-008REV
STRUCTURE
SS1034179
ELECTRICAL SYSTEM
17TS-12REV
ENGINE AND ENGINE COOLING
SS1034577
EQUIPMENT ADAPTIVE/MOBILITY
OLFL821-Emission
EQUIPMENT
CALWS49-001
EQUIPMENT
SF561
FUEL SYSTEM, GASOLINE
FL750-FR
EQUIPMENT
HDEP PLV Return
FUEL SYSTEM, GASOLINE