Is your defective GMC Yukon actually a LEMON?

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GMC TSB #20NA166

2021 GMC Yukon

TSB Document:

MC-10212560-9999.pdf

Affected Component: ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS

Summary: This informational 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: DEC 09, 2021
NHTSA TSB #: 10212560

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