I have a 2000 Chevy Tahoe 5.3L. The front AC works fine, it blows nice cold air. The rear AC does not work. When I turn either of the overhead ac control swicth on, I can hear a click in the rear passenger pannel but no air comes out at all. I checked the fuse box under the hood and the HVAC fuse was blown (30A). I replaced that and turned the rear ac back on. Again, I hear a click in the rear panel. I can hear that everytime I turn either switch on each controller on and off. Went to check the fuse and was blown again, but I can still hear the clicking sound in the rear even with the fuse blown. I believe there are 3 components in the rear ac system. 1) Hot/Cold Actuator 2) Floor/Ceiling Actuator and 3) Control Module. Now, is one of these bad? Where is my problem? I don't want to start replacing parts without knowing what is really bad on my vehicle.Please help. Thanks
Should be in the blower itself, not the actuators. What you can do is get a short finder so you dont have to keep replacing 30A fuses, but unplug the relay in the back for the blower motor see if the short is before the rear HVac or inside the rear HVAC. If it doesnt blow then insert the relay unplug the blower itself see if it is the problem. Maybe it or a short in the wiring somewhere
