Chevrolet Avalanche owners have reported 1 problem related to coolant leaking (under the engine and engine cooling category). The most recently reported issues are listed below.
Vehicle started experiencing a gradual coolant loss, found out vehicle has a manufactured faulty cylinder head(s) from castech. Will cost $$$$ to repair. Gm will not address the problem except with gm #06-06-01-019b information on gradual coolant loss over time with no evidence of leak found, (June 12, 2007).
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all problems of the 2004 Chevrolet Avalanche
🔎.