Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
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It sounds like its probably the fan but without testing I cant say for sure. Do you have a multimeter?
If you get one I will walk you through testing.
OK there is a black and a blue wire at the fan motor connector.
Touch one of your test leads to each of those wires.
Check the voltage when the fans turn off. Let me know what you get.