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GMC TSB #22-NA-216

2021 GMC Sierra 2500

TSB Document:

Affected Component: ENGINE AND ENGINE COOLING

Summary
This bulletin advises the technician to Inspect the position of the head gasket locating tabs to determine if the head gasket(s) has been possibly installed backwards to correct a concern of an Engine Thermostat Tick Noise and/or Running Hot.

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Date Published
OCT 26, 2022
NHTSA TSB #
10225719
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