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Volvo VNL jake brake don't work

Discussion in 'Ask An Owner Operator' started by Schöne, Nov 10, 2021.

  1. Nov 10, 2021 #1
    Schöne

    Schöne Bobtail Member

    47
    20
    Feb 23, 2019
    0
    Hi truckers. I had an ECU replaced and now the jakes won't work because it wasn't programmed right or something...no one can figure what's wrong. So for now I have to drive without jakes. Besides the old traditional way of downshifting, can I use the johnny bar (trailer brake) as well?
     
    Schöne, Nov 10, 2021
    Schöne, Nov 10, 2021
    #1
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  3. Nov 10, 2021 #2
    77fib77

    77fib77 Road Train Member

    10,273
    63,735
    Jul 7, 2010
    St Louis
    0
    The trolley bar can overheat your brakes causing them to fail. Or better yet catch on fire. I drove with out Jake's in the mountains, I was in 6th gear. It sucked. Brake pedal switch went out or maybe it was the clutch switch.
     
    77fib77, Nov 10, 2021
    77fib77, Nov 10, 2021
    #2
    Schöne Thanks this.
  4. Nov 10, 2021 #3
    Schöne

    Schöne Bobtail Member

    47
    20
    Feb 23, 2019
    0
     
    Schöne, Nov 10, 2021
    Schöne, Nov 10, 2021
    #3
  5. Nov 10, 2021 #4
    Schöne

    Schöne Bobtail Member

    47
    20
    Feb 23, 2019
    0
    Mine has to do with the ECU coz it was working before.
     
    Schöne, Nov 10, 2021
    Schöne, Nov 10, 2021
    #4
    77fib77 Thanks this.
  7. Nov 10, 2021 #5
    86scotty

    86scotty Road Train Member

    4,415
    11,752
    Aug 27, 2017
    Appalachia
    0
    Howbout taking it back and having it fixed properly?
     
    86scotty, Nov 10, 2021
    86scotty, Nov 10, 2021
    #5
  8. Nov 10, 2021 #6
    Schöne

    Schöne Bobtail Member

    47
    20
    Feb 23, 2019
    0
    Apparently it needs a new ECU and nobody has one in the whole USA and Canada. They've been trying to fix it for 3 months. So, it will be several months b4 it's available.
     
    Schöne, Nov 10, 2021
    Schöne, Nov 10, 2021
    #6
    77fib77 Thanks this.
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