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Thread: Possible radiator leak??

  1. #1
    Knows a Thing or Two Lojo's Avatar
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    Possible radiator leak??

    I have a 2017 JKU with 24k on it currently. Got in it yesterday and noticed a coolant smell. I checked passenger floor board area and it’s dry. I was in a drive through this evening and noticed slight evaporation/steam coming from the front. Upon closer inspection with a flashlight and engine running I think it is coming from passenger top radiator area. Does anyone have any experience with similar situations?? It is under warranty so going to take it in Monday, just wondering if anyone has any input I may be missing. Thanks


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  2. #2
    Knows a Thing or Two Lojo's Avatar
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    Also coolant level is at the low mark. So it appears it is disappearing. Thanks all!!


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  3. #3
    Knows a Thing or Two Lojo's Avatar
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    IMG_4777.JPGIMG_4776.JPG
    Water pump perhaps??


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  4. #4
    Knows a Thing or Two Lojo's Avatar
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    So took Jeep into dealer and pressure tested. They could not find the leak. There is a distinct coolant smell inside the cab. Has anyone ever experienced a similar situation?? Thanks all


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  5. #5
    Fresh Catch ninemmbill's Avatar
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    If you can smell it, it's leaking from somewhere.

  6. #6
    Knows a Thing or Two Lojo's Avatar
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    My thoughts exactly.... it has to be a very small leak and has not decided to fully show itself yet. Frustrating


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  7. #7
    Caught the Bug
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    So I had same issue. Under hood there is 4 plastic pins on top holding plastic cover. Pop pins and look down right side of radiator. See if you see dried pink residue anywhere. Its probably evaporating. The JKs factory radiator is junk. I had to show the dealer where the leak was after they said it wasn’t leaking.


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  8. #8
    Knows a Thing or Two Lojo's Avatar
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    Thanks... I will check in the morning!! I do think it is evaporating because there is some coolant loss. I have refilled marked the level to monitor and see where it goes from there.


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  9. #9
    Addict jeeeep's Avatar
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    if you're smelling it on the inside, could be the heater core and it'll take a while for it to show up inside the cab. oull back the passenger side carpet at the center and check for stains.

    The other common area is along the bottom of the radiator behind he plastic shrouding on the back side, hard to see but use a good light and pull the plastic cover back.

    If you have a black light, the fluid will glow

  10. #10
    Hooked JoeB-JKURX's Avatar
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    Frequently, the plastic thermostat housing will have a hairline crack that the dealer mechanics often don't find when you take it in on warranty. A replacement is pretty cheap and not too hard to install.

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