Question about 2004 GMC Envoy

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A/c condensate is leaking into cab on the floor what could be the prob?

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There should be a little drain pipe thing coming through your firewall. Just a little short fat thing about the shape and size of a bent thumb. I suspect it is plugged with debris. Just squeeze it and see if you can get it cleaned out and draining again. It should be under the hood, on the firewall, between you and the engine.

Posted on Aug 30, 2010

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