1. #1
    Cgorman21's Avatar
    Cgorman21 is offline Junior Member
    Join Date
    Jul 2013

    AC Compressor won't engage

    I recently replaced my seized up AC Compressor, drier, and orifice in my 98 Sahara. Pulled a vacuum, verified no leaks, and put as much r134 in as possible without the compressor engaging. I used a 14 gauge wire to jump the low pressure and high pressure sides with no luck. When I jumped it directly from the compressor to the positive battery terminal it engaged immediately. I swapped AC relay with one I know to be working. Any suggestions what could be my issue. The slider works for fan, heat, etc. but I cannot get the compressor to kick on. Thanks.

  2. #2
    superj's Avatar
    superj is offline Senior Member
    Join Date
    Feb 2010

    Re: AC Compressor won't engage

    Is there a sensor by the drier? That's the one I jumper to engage mine if the pressure is to low to kick it on

  3. #3
    SteelHeadz's Avatar
    SteelHeadz is offline Moderator
    Join Date
    Oct 2008
    Kerrville, TX
    Check both fuse. One in the fuse block under the hood and one behind the glovebox. If one of those fuses is blown, the cycling switch won't engage the clutch.
    Confucious says: Don't eat the snow where the huskies go!

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