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Blinking AC lite

Discussion in 'Diagnosis/Help' started by vic dat, Jan 9, 2018.

  1. vic dat

    vic dat Well-Known Member

    Hi Team,
    This morning on the first rainy day here in SoCal I got a split second flash of the various warning lights. This almost always (in my experience) has meant alternator time. This time the AC lite started blinking. The charging system seems ok. I kept driving and all was fine except no compressor so no decent defroster.
    After lunch I went out and started it up and all's ok. I think that the belt may have been slipping a bit causing the flashes like on my friends 5th gen Celi ...
    Any thoughts??
  2. nfocus

    nfocus Member

    Just want to add I also am in SoCal, when it rain my tach jumps like crazy, the car drives fine it just doesn't like getting wet.
  3. vic dat

    vic dat Well-Known Member

    Sounds like a sketchy connection that needs dialectic grease ...

    I'm gonna tighten my serpentine belt when the rain ceases. I put new belts on a couple months ago so I suspect that it's a bit slack
  4. eNtraxGT88

    eNtraxGT88 Well-Known Member Donated!

    i've had the blinking before when there wasn't enough refrigerant inside the system. there was enough to start the compressor, but gets too low when it's running, compressor turns off, light starts blinking.
  5. vic dat

    vic dat Well-Known Member

    I duplicated the senario on my way home. It happened again when i hit a big puddle. The alt lights came on for a split second then the AC lights flashed.
    That proved to me that it was a slipping belt which was one of the possible causes.
    Next day I adjusted it and all is well. Charging at 14 volts at idle. (Runs better w/ the 70 amp alt).
    The compressor stays on, no bubbles in sight window. Readjusted idle hold steady at 725 rpm with or w/out AC on...

    All is good for a while.

  6. MattC

    MattC Well-Known Member Donated!

    Good job Sherlock :D

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