Is the hvac damper vacuum operated, How do I get to it? on 1999 Cadillac Seville STS

Fan runs on high, but just a trickle of air from dash vents with AC and fan on high. Refrigerant charge is full, just very low airflow. I am a commercial AC mech. but never tackled a cad.

by in Eugene, OR on July 11, 2013
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