I have a strange problem with my AC. I can be driving, and all of the sudden the two vents closest to the driver will start blowing hot air. And by hot air I dont mean non-cooled, I mean hot air as if the heater was turned on as hot as it would go. However the vents on the passenger side of the vehicle are still blowing cold air. Once I stop my truck, and turn off the ignition for a few minutes and then restart everything is fine. It seems to be doing this about once every two weeks.

Any ideas?


Thanks

Tim
2003 2500HD CC Duramax.