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Old 01-04-2010, 07:52 PM   #1
jdclemons
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Join Date: Jan 2010
Location: Eatonton, GA
Posts: 21
Question Defrost

Hi guys, i am having problems with my defrost. It will come on and blow, the heat works, blower works, but the gates that directs the flow doesnt. I cant figure out where the vacuum come from that works the gates. I have a 1987 Chevy Silverado EFI all original. Nothing has been swaped over, still have throttle body. If anyone can give me some pointers i will gladly appreciate it. Thanks. Heavy Chevy

Last edited by jdclemons; 01-04-2010 at 08:01 PM.
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