jameslee
05-05-2008, 04:48 AM
I have a 1995 3/4 chevy diesel truck. About 3 days the rotary mode knob on the dash started going crazy. If I turn on the fan with the mode to blow air out of the dash it works great until I turn on the a/c. Then the air comes out of the floor. All of the other modes work fine. What would make the air change direction by just turning on the a/c?:dunno: