Some w series medium duty tilt cab models may experience pcv system freeze-up when operated in extremely...
Chevrolet technical service bulletin 010604021 for 1999-2001 Chevrolet Medium Duty.
- Bulletin number
- 010604021
- Component
- Engine and engine cooling: exhaust system: emission control: gas recirculation valve (EGR valve)
- Summary
- Some w series medium duty tilt cab models may experience pcv system freeze-up when operated in extremely cold weather conditions, causing the engine rear main seal to leak. Tt
Vehicles covered
- Chevrolet Medium Duty 1999-2001 199920002001
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