Hey all, got a question about the AZC system on my 03 GC Limited.
I can turn the heat on and set the temp to, say, 80. It will blow warm air for a while then it will start to get colder, until the warm air will randomly cease. Its interesting that the middle two vents above the AZC unit will blow cold but the vent on the drivers side next to the window will still blow warm. I can adjust the temperature to say 85 and it will start to blow warm again then get cold a short time later. If i set the temp to HI it will always blow hot from all vents and i have not seen it cease to blow hot air.
I hear the actuator working when the temp. knobs are turned in addition to the vent location, floor, etc. When i did a diag check on the AZC it does report errors 52, 53.
My question really comes down to what do you guys think this could be based on what my experiences with this are? Is it really a blend door issue again? Could my AZC unit be going bad and not detecting the cabin temp correctly and just turning the heat off?
Please let me know what your thoughts are. Thanks in advance!