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GMC TSB #PIP5029H
2012 GMC Sierra 2500
TSB Document:
Affected Component: ENGINE (PWS)
- Summary
- This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction Indicator Lamp on or engine misfire, rough idle, extended crank, or crank no start in some cases. Technician will need to perform published Service Information diagnostics. If technician finds carbon, an upper engine and valve cleaning should be performed. Update added part numbers for the cleaner and model years.
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