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How do you drain out and refill new coolant on 2004 Chevy Silverado?
Wiki User
∙ 16y ago
There is a petcock on the right side toward the bottom of the radiator that you must loosen. Also, disconnect the lower radiator hose. I believe it is an 8 or 9 gallon system. Refill the coolant by pouring it into the coolant tank, since Chevy has quit putting caps on radiators. Josh C
Wiki User
∙ 16y ago
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