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  1. #1
    New JK Freak
    Join Date
    11-26-2017
    Location
    Camp Lejeune
    Posts
    3

    Jeep overheats when A/C is on!

    At highway speeds (55mph +) with the A/C on my 08 JK Sahara keeps overheating. Coolant temp normally runs at 206 degrees and then the fan will kick on in high speed bringing it back down to around 194. While driving faster than 55mph the coolant temp will keep rising however, going up to the 230ís if I donít slow down and turn off the A/C. Pretty sure it will keep rising but obviously Iím not trying to find out so I always have to slow down and shut of the A/C. I can manage driving at 60-65 with the windows down and keep a comfortable coolant temp, but Iíd like to solve this issue. Any suggestions??

    2008 JK Sahara
    3.8L
    Dana 44ís w/ E Lockers
    5:13 gears
    37Ē Pro Comps



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  2. #2
    No one special ShutterBug's Avatar
    Join Date
    09-08-2013
    Location
    Mentor, OH
    Posts
    2,782
    My guess is your A/C compressor is bad is putting a drag on the engine.

    2014 Black JK Sport-icon - My "Lil' Mule"
    JCR Offroad | Rock Krawler | Barnes 4WD | Artec | RCV | Ten Factory
    My Build Thread

  3. #3
    MallCrawler
    Join Date
    06-04-2013
    Location
    Fl
    Posts
    105
    I would do full radiator flush first then check if there's any improvement.

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