Technical Service Bulletin WI21-003 — 2019 FREIGHTLINER BUSINESS CLASS M2
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | WI21-003 |
| Manufacturer | |
| Vehicle | 2019 FREIGHTLINER BUSINESS CLASS M2 |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
Warranty Information 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.
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