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  • what makes the A/C cycle on and off and blow hot air then back to cold
  • what makes the A/C cycle on and off and blow hot air then back to cold
  • what makes the A/C cycle on and off and blow hot air then back to cold
  • what makes the A/C cycle on and off and blow hot air then back to cold

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  1. #1
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    Default what makes the A/C cycle on and off and blow hot air then back to cold

    96 CE LT1, when idling the A/C will recycle sorta on and off and blow hot air then back to cold then recycle back to hot air. Especially rough here in AZ when the past 2 days has been 105. Know its not low on Freon ( but maybe too much ? )
    Thanx as always
    Gordon

  2. #2
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    forgot to mention it only happens when I am stopped/idiling for more then 5-6 minutes

  3. #3
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    Low Freon.

  4. #4
    Member LLC5's Avatar
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    Quote Originally Posted by gmhowe View Post
    96 CE LT1, when idling the A/C will recycle sorta on and off and blow hot air then back to cold then recycle back to hot air. Especially rough here in AZ when the past 2 days has been 105. Know its not low on Freon ( but maybe too much ? )
    Thanx as always
    Gordon

    You need to start by checking the high and low side pressures when this occurs, which should be easy since it is only at idle. Make sure that the radiator and condenser fans are working properly, and that there is EXCELLENT air flow across the condenser and radiators with the fans on high speed. Make sure that the condenser and radiator are clean and debris free.
    Master Technician

    25+ year ASE Master Certified Tech

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  5. #5
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    Actually I had put in too much Freon, got that fixed and things are good to go now
    Gordon

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