Hello guys. I found this site while searching for info on grand prix climate control issues. I need some help diagnosing my car's problem. Here is what is going on:
*2001 Grand Prix GT(3.8 k engine) with dual climate control
*Noticed about 2 weeks ago started running hotter than usual(from about 180 to 195 now)
*now I am only getting warm air thru the climate system even when set for just air from outside(no ac or defrost turned on)
*no cold air when ac on whether max or min setting
*blower fan seems to be working properly
*vacuum control for defrost/dash/floor working properly
*blend door actuator working
*engine whine when set on ac or defrost(changes as the rpms change)
*removed blend door actuator and can move door manually easily
*have had the radiator flushed and new thermostat installed
Any help or ideas would be appreciated
