The temperature is controlled by the use of an air mix door that is operated by an electric motor/actuator. This door can be jammed or the actuator can be inoperative or have stripped plastic gears internally.
November, 13, 2010 AT 1:09 AM
How could I test that
November, 13, 2010 AT 1:20 AM
By physically accessing the actuator and look to see if it's working or not.
November, 13, 2010 AT 12:28 PM
Would that be making a clicking noise under the dash if it was damaged?