mitche ... 10/4/2012
2006 Chevrolet Trailblazer LT 6 Cyl 4.2L
Body & Interior
What is the cause of this issue?
My ac stopped blowing out of the front vent ,but it's blows out the back and side vents with no issue
The Mode Door Actuator controls the direction of airflow. It selects which way air flows through the different ducts. If your climate control system has lost the ability to control which vents the air comes out of, the MDA has probably failed. Both the ATC and MTC systems use this device.