Question about 1999 Cadillac DeVille

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Air is blowing out of defroster and floor but not main dash vents

The dash vents are open and cold air comes out the defroster and floor and rear vents but very little comes from the dash vents.

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  • Anonymous Mar 12, 2014

    How do you fit rear vent in centre consol

  • Anonymous Mar 12, 2014

    How to fit rear air vent in centre consol

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Check for vacuum hose leak.

Posted on Jun 17, 2009

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1 Answer

AC issues


The problem is either an actuator or the door associated with it. Sometimes the gear strips, especially when the system goes thru a recalibrate after power has been removed and reapplied. Below is a diagram of the locations of the actuators.



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AC is only blowing through the defrost vents in the dashboard?


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I have an 01 Jeep Grand Cherokee. When you turn on the air conditioning air does not blow out any of the vents except a small amount of air (cold) will blow out the defroster vents by the windshield. If...


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A/C blows from defrost and floor vents, nothing from dash vents.


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Hope I was avle to help, glad you up and going.

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1 Answer

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The front and rear units are totally separate.

The door directs where the air, cold or hot, should come out, whether it is panel vents, floor, defrost, or any combination of those.

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