Air Conditioning Clutch Fails to Engage from Dash

Discussion in '80-Series Tech' started by bruiser, Jul 12, 2005.

  1. bruiser

    bruiser

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    Tried the Searches, but my Air Conditioning clutch fails to engage from the A/C button on the dash. The little green light comes on, but there is no volts at the connector on the compressor. Fuse checks out OK. If I pull the connector to the compressor off and jumper in 12v direct, the clutch operates as expected.

    Is there any other stuff I can do or is the problem with the Air Con ECU???? :doh:
     
  2. sjcruiser

    sjcruiser

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    Sounds like your refrigerant is low. The pressure switch (I think) would not allow the clutch engagement (which could damage the compressor). Have it checked by a professional.
     
  3. TX_TLC

    TX_TLC

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    I second your R-134a being low...but you can check and refill with a simple kit from any auto parts store.

    edit...well that answer would be for any US spec...sorry don't know about UK spec or availability at auto parts store.
     
  4. elmariachi

    elmariachi

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    IMO, diagnosing all AC problems starts with a manifold gauge set. All AC systems are basically the same and there are only a few basic problems, most all of which can be easily identified with the gauges.
     
  5. flintknapper

    flintknapper

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    Agreed.


    Yup, anything less is "guessing".
     
    Last edited: Jul 12, 2005
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