Replace all of your actuators, it's a bitch but GM has always had this problem. Some are hard to reach, some are easy. But if you want reliable A/C service, replace them all. Check freon charge level, make sure the evaporator at the front is clean and bug free.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.