Could be the air blend door mode actuator problem. Here is a guide to help you see what you are in for when doing the job and diagrams below to show you how to replace the actuator in your car:
Mode door actuator.
The single mode door actuator is located on the driver side end of the heater-A/C housing unit, close to the top of the distribution housing.
Check out the diagrams (below). Please let us know what happens.
Friday, July 15th, 2011 AT 9:47 PM