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1999 mercedes ml320

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  • June 28, 2016 at 1:38 am #861431
    jasonjason
    Participant

      a/c works sometimes and sometimes it don’t but win it don’t work u can put 12v straight to the compressor and it will work. and cools very well pressure levels are dead on the pressure switch’s are new and when u turn the switch on the light comes on regardless if the comp kicks on or not any ideas

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    • June 28, 2016 at 3:12 am #861437
      college mancollege man
      Moderator

        Not sure whats in the circuit. It could be the temp sensor or the low pressure switch.
        Also check the ac relay. You best bet is a ac wiring diagram to see whats in the circuit.

        June 29, 2016 at 2:19 am #861511
        jasonjason
        Participant

          i no it is not the relay but i will look at that wiring and see whats up thanks and i will let you know

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