Question about 1992 Cadillac DeVille
Hello: The actuator for the air mix door has probably failed (high failure rae item) Remove the glove box and the passenger side hush panel(on bottom of passenger dash) Turn key on (engine off) You will see a silver rod coming from the actuator going to the arm on the door. Run the temp from 60 to90, the rod should move, if it doesn't the actuator is bad. The actuator is mounted on top of the programmer. This should help you.
Posted on Nov 06, 2010
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Posted on Jan 02, 2017
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