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GMC TSB #22-NA-216
2023 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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