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Coolant leak. Could this be the dreaded bypass leak?

Discussion in 'Technical Chat' started by Trail_Limo, Apr 7, 2024.

  1. Apr 7, 2024 at 5:48 PM
    #1
    Trail_Limo

    Trail_Limo [OP] Well-Known Member

    Joined:
    Apr 27, 2023
    Member:
    #423432
    Messages:
    160
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    Male
    First Name:
    G
    Land of fruits and nuts
    Vehicle:
    Turd Gen OR Limo
    Hey y’all, so I discovered a coolant leak unfortunately. Seems to very slowly drip even with the truck off. Definitely a bit faster drip with the truck running but not continuous drip (at least on a cold start).
    I tried to track it but having issues. Due to the general location of the drip and noticing some evaporated residue on the side of the transmission- I am beginning to fear it is the bypass coolant hose..
    Any ideas if I can test or isolate that area to confirm if the bypass is what’s leaking? I looked around to inspect the hoses back there but it doesn’t seem to be coming from any hose as far as I can tell- but it’s and to see & maybe there is some hose or other connection somewhere back there that might be the culprit.
    Not sure how long it has been leaking for- but I just noticed the spot on the floor yesterday, and it gets driven daily.

    Truck has about 130K miles 2016 V6.

    And because it’s boring without pics

    IMG_5786.jpg
    IMG_5798.png
     
  2. Apr 11, 2024 at 3:54 AM
    #2
    faawrenchbndr

    faawrenchbndr Til Valhalla

    Joined:
    Jul 17, 2011
    Member:
    #60024
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    2,591
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    First Name:
    Greg
    Denver, Indiana
    Vehicle:
    ‘23 Sport 4x4 DCSB
    Look at the back side of the engine with an inspection mirror and flashlight. It’s most likely the coolant bypass tube.
     

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