Wakeboard03S10
+1y
On my 98 Tahoe the A/C just started to only blow out the defrost vents. When before it blew out whatever vent I put the switch on. I took it to a shop and they checked the vaccum lines near the motor and there all hooked up. The guy said check the vaccume lines near the switches. Well I pulled my dash bezel off and I cant find anything wrong. But when I turn the nob from cool to heat it still blows cool out the defrost vent. Someone eles said that the switch box might be bad and that I would need a new one? Anyone know.