Some of these cars have a cabin filter and if not it sounds like the mode actuator is not working here are guides and instructions on how to change both
If equipped, The filter access door is located under the instrument panel on the passenger side.
Lets try and check cabin air filter 1st
CABIN AIR FILTER
NOTE:Manufacturer's terminology for this filter is Particulate Air Filter, Air Filter, or A/C Filter.
Locate the air filter door on the bottom of the lower evaporator housing just outboard of the passenger side of the instrument panel center stack. See Fig. 1.
Slide the air filter door latch toward the rear of the vehicle until it engages the opened stop on the door.
Pull the air filter door latch straight downward to disengage it from the air filter opening of the lower evaporator housing.
Use your fingers to reach through the air filter opening of the lower evaporator housing far enough to grasp the air filter.
Pull the air filter straight down and out of the evaporator housing. See Fig. 2.
NOTE:Note the airflow directional arrow imprinted on the foam seal around the frame of the air filter. This arrow should always be oriented towards the center of the vehicle.
With the air filter airflow arrow properly oriented, carefully slide the filter fully upward into the evaporator housing through the air filter opening.
With the latch still positioned against its opened stop, reinstall the air filter door onto the lower evaporator housing air filter opening.
Slide the air filter door latch toward the front of the vehicle until it hits the closed stop on the door.
Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.
Images (Click to enlarge)
Tuesday, June 15th, 2010 AT 9:54 PM