Is your defective GMC Sierra 1500 actually a LEMON?

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GMC TSB #20-NA-166

2024 GMC Sierra 1500

TSB Document:

MC-10252125-0001.pdf

Affected Component: ENGINE AND ENGINE COOLING

Summary: This service bulletin advises the technician of possible coolant entering the areas of the engine, either through failed parts or defects in the castings, that may be the cause of the concerns related to the MIL or the engine running rough.

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Date Published: MAR 21, 2024
NHTSA TSB #: 10252125

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