THE HEATER AND AC SYSTEM DOES NOT SWITCH TO THE ...
2002 Chevrolet Blazer
The heater and a/c system does not switch to the floor vents?
Wednesday, December 26th, 2012 AT 7:29 AM
First pull the hvac fuse for 60 seconds then see if it works or not. Then check yoru actuators one is'nt working. Then check for a vacuum leak and see if vacuum is gettin to one of these vacuum motors. There is one for direction and another for heat/cold.