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Leaking Coolant at Throttle Body - hose identification

Discussion in '3rd Gen. Tacomas (2016-2023)' started by Ckflyer13, Dec 8, 2023.

  1. Dec 8, 2023 at 4:18 PM
    #1
    Ckflyer13

    Ckflyer13 [OP] New Member

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    Collin
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    Hello all,

    Took my truck (2018 3.5L V6) into the dealer today for some servicing and they found a coolant leak at the throttle body. Would've let them fix it but they wanted over $400 to replace these hoses. I have a video of the two hoses I've got leaks in that I will link at the bottom. I'm here looking for some help in IDing these two hoses. One goes from the TB to the thermostat housing, which I believe is Part# 16281-0P070. The other hose I have no idea. It goes down from the TB to another assembly that I am not 100% sure on what it is.

    I've checked every diagram, tutorial, and thread I could find. Would greatly appreciate any help or pointers.
    https://imgur.com/a/T3Q6cll
     
  2. Dec 8, 2023 at 6:29 PM
    #2
    Greg-tacoma

    Greg-tacoma Well-Known Member

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    Sorry don’t know but $400 at the stealership really, you should have gotten a quote. It would have part numbers
     
  3. Dec 8, 2023 at 6:33 PM
    #3
    Ckflyer13

    Ckflyer13 [OP] New Member

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    Unfortunately, no part numbers on the quote I received. It was priced on their recommendation list, so maybe it wasn't an official quote.
     
  4. Dec 8, 2023 at 7:15 PM
    #4
    gdr

    gdr Well-Known Member

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    Looks like the throttle body is leaking down onto the hoses. You need to wash all that off and see where it comes from.
     
  5. Dec 8, 2023 at 7:17 PM
    #5
    Ckflyer13

    Ckflyer13 [OP] New Member

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    agreed, just wanted to get my hands on some hoses first, since they seem to be cheap. The truck is my only vehicle right now so wanted a fighting chance at fixing it before I start tearing things apart.
     
  6. Dec 9, 2023 at 1:55 AM
    #6
    VaToy

    VaToy Life Long Member

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  7. Dec 9, 2023 at 3:26 AM
    #7
    BLtheP

    BLtheP Constantly Tinkering Member

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  8. Dec 9, 2023 at 4:44 AM
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    Rambofirstblood

    Rambofirstblood Active Member

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    After pulling the throttle body to clean on my 4.0 my hoses seeped coolant.
    I relaced the factory clamps with worm drive hose clamps and no more leaks.
     
    Greg-tacoma and na8rboy like this.

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