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04-10-2012, 01:33 PM
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#1 |
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Registered User
 
Join Date: Jun 2006
Location: Maple Valley, WA
Posts: 1,913
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91 a/c issue
I have a 91 with the 4.3 and factory air. The issue I have noticed is when I turn the a/c on its still blowing thru the heater openings and not where its supposed to. Has the vacumm piece in the switch gone bad? Can I replace just that piece because the whole switch is kinda pricey.
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04-10-2012, 09:14 PM
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#2 |
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BAD BOW-Silverado XST
Join Date: May 2000
Location: Senior Member from Austin, TX
Posts: 6,431
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Re: 91 a/c issue
Check the vacuum resevior hose first. It's under the hood. You may not be getting enough vacuum to close and open flaps.
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