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Old 11-16-2004, 11:12 AM
KCampbell KCampbell is offline
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Join Date: Sep 2004
Location: Bothell, WA
Posts: 237
I believe that the center vents only supply unheated air, at least that's what my owners manual states. Rear heat comes from ducts under the front seats.

If your center vents/rear vent always supply air I would suspect that a flap somewhere in the center console is not working, either because the actuator has become disconnected from the solenoid or the vacuum solenoid no longer works.

Either you'll need to fix the problem in the bowels of the system, or make use of the convenient slider control to just shut the vent off. I know which I'd pick

'85 300SD
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