Contamination of extended life coolant: Chevrolet Silverado 2500 HD Heating & Air Conditioning

Problem overview

Extended life coolant may become contaminated and require cooling system service before the recommended 100,000 miles.

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Contamination of extended life coolant on Chevrolet Silverado 2500 HD

Problem overview

Chevrolet Silverado 2500 HD vehicles with this problem

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