2004 sierra fan switch
jsmith1973
06-22-2009, 04:09 PM
04 sierra only the high setting(5) will work when I turn the fan on. Is there a relay/ fuse I can change or do I need to take this to the dealer to have it diagnosed?
Any help is appreciated.
Any help is appreciated.
2000CAYukon
06-22-2009, 04:39 PM
Typically, when only high speed works, the resistor pack is bad. It looks like this http://198.208.187.182/internet/PartImage.jsp?mfgname=ACDELCO&prodlinecd=15&acpartnbr=15-81086 and will be located near the blower motor. Sometimes, the glove box needs to be removed to get at it.
//2000CAYukon
//2000CAYukon
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