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GMC TSB #17NA110
2018 GMC Sierra 2500
TSB Document:
Affected Component: ENGINE AND ENGINE COOLING
- Summary
- This technical bulletin provides a procedure to Add 1 quart of coolant to the upper chamber of the surge tank in order to bring the level up to the bottom of the fill neck to correct a condition of the coolant surge tank appears low and/or a low coolant message displayed intermittently due to the fill process at the plant cannot purge all of the air from the cooling system and surge tank.
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