Question about 1996 Cadillac DeVille

2 Answers

Ac blows but hot all components check out good!

Compressor lines are cold, still Hot air out panel!! Help

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  • carcarz555 May 30, 2009

    NO vacuum leaks detected :-( . Also this year car doesn't have a slide control it has rocker switch ( I'd call it ) controls also on steering wheel column.

  • carcarz555 May 31, 2009

    Yes the compressor is engaging with the switch on when you turn the switch off the compressor disengages:-(

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  • Cadillac Master
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Possible failure of shutter. Chk for vacuum leak .

Posted on May 30, 2009

  • Ned C Cook
    Ned C Cook May 31, 2009

    can you verify the ac comppressor is actuating/engaging? with this switch on? Open the hood and have another work the awitch. you should hear the clutch engage and disengage. We need to confirm this before going on., Ok?

  • Ned C Cook
    Ned C Cook Jun 01, 2009

    Didn't bail on you. Ck under the hood for any vacuum hoses that may have come loose or off.. The Lines that pass through or enter the firewall are the concern. . I'm sure it is something is petty and that it is a shutter.

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  • Contributor
  • 15 Answers

Are you certain that the slider adjustment is attached? Does it feel like it has resistance when you slide it, or is it a dial? Sounds to me like the cable that changes the flap door from heat to cool is stuck. Think of it this way:
cable ----------------------\ h \c a cover slides between h (hot) and c (cold) inlets into your car, mixing together for warm. I had a Honda with an AC that never quite got nice and chilly, and it was because that flap wouldn't completely cover the hot inlet because the cable had slipped or stretched. So take a peek under the dash and slide the temp gauge back and forth. do you see anything moving? can you see the cable itself?

Posted on May 30, 2009

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