Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
when the key is OFF that blower motor should not run at all as with the key OFF there is no power going through the blower switch
the blower relay is built into the blower resistor assembly and if that blower is running with the key OFF there is a failure i]of that resistor assembly and if its new then it is defective
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