Transmission oil leak, abnormal knocking noise heard at idle
Chevrolet technical service bulletin 030730037B for 2001-2003 Chevrolet Silverado and 2001-2003 GMC Sierra.
- Bulletin number
- 030730037B
- Component
- Power train: automatic transmission
- Summary
- Transmission oil leak, abnormal knocking noise heard at idle. Tt
Owners of these vehicles have filed 276 complaints in the transmission category.
Vehicles covered
- Chevrolet Silverado 2001-2003 200120022003
- GMC Sierra 2001-2003 200120022003
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