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March 30, 2021 Service bulletin

Engine and engine cooling

Chevrolet technical service bulletin PIP5212C for 2014, 2017-2018, 2021 Chevrolet Silverado 1500, 2015-2021 Chevrolet Tahoe and 2021 GMC Sierra 1500 and others.

Bulletin number
PIP5212C
Component
Engine and engine cooling
Summary
This Preliminary Information communication provides information to the technician about vehicles that have run hot and or has a tick noise. Technician should inspect the head gaskets to ensure are not installed backwards. Technician should replace the head gasket if they are found installed backwards.

Owners of these vehicles have filed 2,329 complaints in the engine category.

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