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DD15 GEN5 humming sound

Discussion in 'Trucks [ Eighteen Wheelers ]' started by DD15shaker1, Sep 19, 2024.

  1. Sep 19, 2024 #1
    DD15shaker1

    DD15shaker1 Bobtail Member

    1
    0
    Dec 18, 2023
    0
    22 Cascadia with auto no codes present. When doing 65 on flat ground I hear a faint whine/humming sound. When I go 68 it’s much louder. Goes away when boost is needed or when using jake. No performance issues. No loose CAC clamps or exhaust clamps. Transmission is full of fluid. Also does is in 11th gear. Carrier bearing is good and fluids in differentials. Ride height is perfect. I’m lost here any ideas?
     
    DD15shaker1, Sep 19, 2024
    DD15shaker1, Sep 19, 2024
    #1
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  3. Sep 20, 2024 #2
    201

    201 Road Train Member

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    Apr 16, 2014
    high plains colorado
    0
    I certainly hope being a 2022 model, it isn't anything worn. Could be just the fairings vibrating, tires, or road surfaces. I mean no disrespect, but sounds pretty minor for someone like me that drove trucks that shook like a leaf on a tree. I've had bosses that when mentioning something like this, their response was, "oh, just drive the darned thing, when it stops, then call me",,,
     
    201, Sep 20, 2024
    201, Sep 20, 2024
    #2
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