Thread: 1983 c20 blower only works on high
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Old 06-03-2014, 11:49 PM   #2
rich weyand
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Re: 1983 c20 blower only works on high
'83 wiring manual is here:
http://www.73-87chevytrucks.com/tech..._30_and_ST.pdf

Download it, then open it, or it takes forever to render.
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