AC Venting
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Cadillac Allante Forum Discussion, AC Venting in Past Cadillac Vehicle Discussion; I have just purchased a 93 and found that with the AC on and the vent position set to Normal, ...
  1. #1
    FSU_Noles's Avatar
    FSU_Noles is offline Cadillac Owners Enthusiast
    Automobile(s): 93 Allante, 06 CTS
    Join Date
    Aug 2004
    Location
    Orlando, FL
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    724

    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): 1988 Allante' (sold), 1984 Eldorado, 84 Sedan DeVille
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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
    Automobile(s): 1988 Allante' (sold), 1984 Eldorado, 84 Sedan DeVille
    Join Date
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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
    Join Date
    Aug 2004
    Location
    Orlando, FL
    Posts
    724
    Thread Starter

    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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