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Ravenm ... 8/23/2010
2004 Chrysler PT Cruiser Touring 4 Cyl 2.4L - Engine
Ac compressor will not kick on.
ac switch energizes, low and high pressure switches show fire, scanner says compressor not on, high side fan is not on, but does show that the switch for ac is on. Does compressor ground through the computer?
3 Answers
  • mopar
    mopar 8/23/2010
    if low on rifrigerant...low pressure switch kicks...if too full high pressure switch kicks...clutch won't kick device....more than likely it probably needs a little charge. auto parts stores have charge systems with built in you don't have to second guess...
  • darkmind
    darkmind 8/23/2010
    Also check the condition of your magnetic clutch relay.
  • HouseCallAuto
    HouseCallAuto 8/23/2010
    AC high pressure switch on the back of the compressor is the number one cause of the AC clutch not engaging. It is assumed that the system is fully charged and not just low on refrigerant.

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