2005 GMC Sierra heater/ac will not blow. Clicking/buzzing in dash
36,000 miles bought used. First 4x4 service light was on and sometimes 4x4
will not engage. Now heater/ac will not blow at all. I smelled a musty odor
before it quit.
It sounds as if your blower motor is not working, its a easy replacement, below is a you tube that will give you an idea how to how to replace it, good luck
https://www.bing.com/videos/search? q=2005+gmc+sierra+how+to+change+a+blower+motor&docid=608 053721307743523&mid=E78A4C8B016B020A17E3E78A4C8B016 B020A17E3&view=detail&FORM=VIREHT
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