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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Chevrolet Silverado z71: My dad has a 2007 Chevy z71. He blower

Customer Question

My dad has a 2007 Chevy z71. He blower on his av wouldn't come on. He pulled the fuses to check them and they were fine. He put the fuses back and now the blower won't turn off. He had to unhook the battery
Submitted: 2 years ago.
Category: Chevy
Expert:  George H. replied 2 years ago.
Hello I will help you with your question, This sounds like the blower speed control is what has failed, they can be open one minute and shorted the next. Do you have a voltmeter or 12 volt testlight to check the circuit if I guide you?