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Thread: AC Venting

  1. #1
    FSU_Noles's Avatar
    FSU_Noles is offline Cadillac Owners Enthusiast
    Automobile(s): 93 Allante, 06 CTS
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    AC Venting

    I have just purchased a 93 and found that with the AC on and the vent position set to Normal, a disproportionate amount of air blows out of the windshield defroster vent and hardly any comes out of the center vent above the driver information center. Is this just part of the design or is something amiss?

    tks


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  3. #2
    carnut is offline Cadillac Owners Master
    Automobile(s): 1999 BMW 740 Il. 2005 Jag XK8, 1988 Mercedes Benz 300 SE
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    Re: AC Venting

    Sounds to me like the vacuum source hose from the engine is off, leaking, pinched etc. all cars will default to defroster postion if the vacuum is not correct. With the factory service manual, you should have a trouble tree to lead you to the cause. In the BCM override parameter you should be able to compare blend door angle vs. proper angle. Good luck, Bill.

  4. #3
    carnut is offline Cadillac Owners Master
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    Re: AC Venting

    Never heard what you found wrong? posting the repair as well as the fault helps us all.

  5. #4
    FSU_Noles's Avatar
    FSU_Noles is offline Cadillac Owners Enthusiast
    Automobile(s): 93 Allante, 06 CTS
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    Location
    Orlando, FL
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    Re: AC Venting

    Haven't really looked at it yet, haven't been driving it too much. Still searching and waiting on a manual. I will post as soon as I find out what the problem is/was.

    tks -


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