oldman55 Posted August 19, 2005 Report Share Posted August 19, 2005 A/C airflow diverts to Defroster outlet when I accelerate. Why? Also water on driver side floor when A/C on; but not when A/C off. Why? Quote Link to comment Share on other sites More sharing options...
DiscoStudd Posted August 19, 2005 Report Share Posted August 19, 2005 1.) The vacuum check valve is shot. Look for it near the driver's side underhood fuse panel (it's a 3-way valve so look for the little piece that connects 3 vacuum hoses together.) 2.) Sounds like the evaporator core condensate drain is plugged. I haven't had to deal with one on any of my W-Bodies before, but I'd look for an open hose sticking out near the firewall. All you'll probably have to do there is jam a piece of wire up in the hose to clear it out. Quote Link to comment Share on other sites More sharing options...
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