It doesn't matter what vent setting is selected, it only blows out of the defrost vent.
Jeep Q&AAsk Your Question
1995 Jeep Grand Cherokee Question: Why does my A/C only blow through the defrost vent? No matter what vent I select
Answer #1pushrod September 03, 2012, 16:32Master
Vacuum leak to slector switch prob. under hood.
Replyziptie12, September 05, 2012, 21:15Master
yep! and it's probably on the pas. side fender area---use your ears (while it's running) listen for hissing sound. May have to open up soe of the corrugated tubing that covers a lot of wires and plastic multi colored vacuum tubes in that area. most likely hard plastic line NOT typical rubber vacuum hose.