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Coolant return

Discussion in 'Wrangler JK (2007-2017)' started by Cam, Feb 16, 2026.

  1. Feb 16, 2026 at 10:39 AM
    #1
    Cam

    #1
    Cam [OP] New Member

    Joined:
    Feb 16, 2026
    Member:
    #10028
    Messages:
    1
    Gender:
    Male
    Vehicle:
    2008 wrangler
    When driving coolant goes into overflow bottle, when it cools the coolant does not return to rad.....why?
    System has been pressure tested...all is good. Changed rad cap. To smell or smoke in exaust.
     
    Cam, Feb 16, 2026
    #1
  2. Feb 16, 2026 at 2:50 PM
    #2
    aggrex

    #2
    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>
    Purge any residual air in the system? Clog in the system? Check thermostat is operating properly
     
    aggrex, Feb 16, 2026
    #2
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