A\c Problems

[ilmk123]

I have a 03 Denali with a dual digital climate control. My front vents blow cool air and the rear is cold. Had no problem with the front until I had the system pulled down and recharged. The reason why I had that done was at a extended idle the air would start blowing warm and sometimes the compressor would shut off. The shop said that the system was way over charged and the high pressure swtich was shutting it down.

The mode actuator ( vent,heater,defrost) was making a clicking sound. I have that off and I am going to replace it. I also have the actuator off that is located right above the hump that controls the drivers side blend door. I have manually moved the blend door and all that does is change the temp to the drivers vents and they get hotter. Neither side will blow cold. If I change the temp on the cliamte control to a warmer temp either side will respond, but just won't get as cold as the back. I have noticed that if you turn the fan speed down to a low setting that the temp of the air will get a little cooler. I am hoping that somebody knows something about this problem..... Thank You!......Scott