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Larry
Larry 2/7/2013
2002 Cadillac DeVille Base 8Cyl4.6L - Body & Interior
Heat is coming out of the dash vents but not from floor vents
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  • CVO
    CVO 2/7/2013
    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.
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    CVO
    Larry 2/7/2013
    Where is it located? and how many are there?
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