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Trans leak

Discussion in 'Wrangler JK (2007-2017)' started by geist53, Feb 28, 2026.

  1. Feb 28, 2026 at 8:01 AM
    #1
    geist53

    geist53 [OP] New Member

    Joined:
    Feb 28, 2026
    Member:
    #10068
    Messages:
    2
    Gender:
    Male
    First Name:
    David
    Vehicle:
    2017 wrangler sahara unlimited
    I thought my pan was leaking but when i drive around the trans does not leak but when i tow behind motorhome the trans will leak fluid. It seems like it is building up pressure and than dumping it out . I make sure jeep is in nuetral and is auto trans.
     
  2. Feb 28, 2026 at 9:10 AM
    #2
    aggrex

    aggrex Well-Known Member

    Joined:
    Sep 12, 2016
    Member:
    #203
    Messages:
    5,066
    DE
    Vehicle:
    Backcountry '16
    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
    Confirm the location of the ATF leak. is there a hose, clamp or connection or plug that isn’t torqued to spec. Perhaps the transmission is over filled? leaking from the breather line or vent? Check the owners manual for towing prep?
     
  3. Feb 28, 2026 at 9:47 AM
    #3
    geist53

    geist53 [OP] New Member

    Joined:
    Feb 28, 2026
    Member:
    #10068
    Messages:
    2
    Gender:
    Male
    First Name:
    David
    Vehicle:
    2017 wrangler sahara unlimited
    You cannot see a leak but seems to build pressure and blow all over passanger side under. the pan is not leaking when not towing.The vent line comes to the top of intake and seems to have ck valve but is not leaking. followed all tow directions.
     
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