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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29534
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Chevy: cheyenne..a/c manual

Customer Question

have chevy cheyenne truck 1998 a/c blower replaced, a/c controller unit replaced, works okay but only on high not on low or med. suggestion to what else to do or check. and where can I get a repair manual book etc.
Submitted: 8 years ago.
Category: Chevy
Expert:  GM Tech (Cam) replied 8 years ago.
Welcome! The blower not working on anything but leaves 2 possible issues. First is the blower resistor. If one of the legs if open then it will not work. The second is the high relay. Both are behind the glove box and easy to get at. I would check the feeds from the controller to the resistor with a test light first.
Customer: replied 8 years ago.
not easy to get behind glove box. don't have a test light either.
Expert:  GM Tech (Cam) replied 8 years ago.
A test light is inexpensive, maybe 10 or so for a simple on, and I can get directions to get behind the glove box.