Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello,. how are you checking freon? it cant be checked unless ac compressor is in fact kicking in and pumping so,, when you select ac, is the compressor clutch coming on?
I need to opt out, Another expert will be along soon to help
If you are an HVAC tech, then you should be comfortable with doing a few checks.
When it's not working, I would be at the AC compressor electrical connector to see that there is power and ground being applied. I don't know what "heater" the dealer is talking about, but this is the place to start.