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.
Water leak under bunk
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by hoffa660, Mar 14, 2020.
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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. -
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It’s. 2020, take it back to the dealership and make them fix it.Flat Earth Trucker, PE_T and daf105paccar Thank this.
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