My Blazer is a 2001 4DR, 4WD, 4.3L V6, Auto with 136,000 miles on it. I'm the original owner.
About a week ago when I turned on the A/C, if you barely turned the temp control (center knob) to warm up the air coming out the vents it got hot instead of just tempering the air. Now, it just stays hot all the time. The compressor is running and there is proper refrigerant level in the sytem. I took the fan resistor off the evaporator box and looked in to see if the motorized damper door was doing anything. When you turned the temp control to full cooling it moved about an inch towards blocking off the airflow to the heater core and stopped. When you turned it to full heat it moved back to the "full air across the heater core" position. Any ideas?
have the same problem?
Wednesday, July 11th, 2007 AT 8:32 AM