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2016 Cascadia coolant hose collapse

Discussion in 'Trucks [ Eighteen Wheelers ]' started by joseph1853, Mar 4, 2022.

  1. Mar 4, 2022 #1
    joseph1853

    joseph1853 Road Train Member

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    I was changing out my fuel filters today and noticed the upper passenger side coolant house was collapsed. Not sure that's the word you would use but you get the idea. Anyways I started her up after getting done with the filters to make sure everything was fine and the hose went back to normal then I turned the truck off and it went back to the collapse state. What do ya'll think? Bad hose or something else? Cascadia coolant hose collapsed.jpg
     
    joseph1853, Mar 4, 2022
    joseph1853, Mar 4, 2022
    #1
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  3. Mar 4, 2022 #2
    Mototom

    Mototom Road Train Member

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    I once had a farm tractor with a bad radiator cap do this. I doubt the house is bad.
     
    Mototom, Mar 4, 2022
    Mototom, Mar 4, 2022
    #2
  4. Mar 4, 2022 #4
    joseph1853

    joseph1853 Road Train Member

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    Dec 12, 2010
    Waco, TX
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    Bad radiator cap? Never heard of that happening before.
     
    joseph1853, Mar 4, 2022
    joseph1853, Mar 4, 2022
    #4
  5. Mar 5, 2022 #4
    Goodysnap

    Goodysnap Road Train Member

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    Replace the Rad cap or vented cap on the surge tank. It is plugged or malfunctioning. When the truck cools off it cannot draw air in and caused a vacuum on the system and that is why the hose is collapsed.

    When the truck warms the fluid expands and the hose goes back to normal.
     
    Goodysnap, Mar 5, 2022
    Goodysnap, Mar 5, 2022
    #4
    jsnell and QUALITYTRUCK Thank this.
  7. Mar 6, 2022 #5
    MAMservices

    MAMservices Medium Load Member

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    That was on an ASE test once upon a time.
     
    MAMservices, Mar 6, 2022
    MAMservices, Mar 6, 2022
    #5
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