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Water leak under bunk

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by hoffa660, Mar 14, 2020.

  1. Mar 14, 2020 #1
    hoffa660

    hoffa660 Bobtail Member

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    Feb 14, 2015
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    I have a 2020 Kenworth T680 72" condo and every time I drive thru rain the compartment under the bed get soaked under the rubber floor mat and if I drive long enough it will creep up under the sleeper carpet. This is the first 680 I've owned so not sure where to start looking since everything in wet not sure where to start looking. It only leaks when truck is drove in rain, sitting still in thunderstorms stays dry as a bone. Any suggestions are much appreciated.
     
    hoffa660, Mar 14, 2020
    hoffa660, Mar 14, 2020
    #1
    truckdriver31 Thanks this.
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  3. Mar 15, 2020 #2
    truckdriver31

    truckdriver31 Road Train Member

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    yours or companies
     
    truckdriver31, Mar 15, 2020
    truckdriver31, Mar 15, 2020
    #2
    PE_T Thanks this.
  4. Mar 15, 2020 #3
    hoffa660

    hoffa660 Bobtail Member

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    It's my truck
     
    hoffa660, Mar 15, 2020
    hoffa660, Mar 15, 2020
    #3
    truckdriver31 Thanks this.
  5. Mar 15, 2020 #4
    zaroba

    zaroba Heavy Load Member

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    If it's anything like my 16 and the 15 I used to drive, the floor under the bed has some holes in it to allow for stuff to pass through, like wires for an inverter or drain hose for an AC unit powered by an APU. If one of the rubber grommets for these holes is missing it could be allowing water spray from your tires to blow into the hole while driving. Well, not into the hole, but up against the underside of the mat where the water collects and runs elsewhere. Should be able to lift the mat easily to check.

    Another thought is maybe a bad seal or weak clasp on a side door.
    Fine when stopped, but when driving the passing air blows water through the poor seal.
     
    zaroba, Mar 15, 2020
    zaroba, Mar 15, 2020
    #4
  7. Mar 15, 2020 #5
    daf105paccar

    daf105paccar Road Train Member

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    Warranty.
     
    daf105paccar, Mar 15, 2020
    daf105paccar, Mar 15, 2020
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    PE_T and AModelCat Thank this.
  8. Mar 15, 2020 #6
    TTNJ

    TTNJ Heavy Load Member

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    Exactly what I was thinking.
    It’s. 2020, take it back to the dealership and make them fix it.
     
    TTNJ, Mar 15, 2020
    TTNJ, Mar 15, 2020
    #6
    Flat Earth Trucker, PE_T and daf105paccar Thank this.
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