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13 Speed Eaton Fuller Slow Shifting

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Ker, Sep 27, 2023.

  1. Sep 27, 2023 #1
    Ker

    Ker Bobtail Member

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    Mar 11, 2018
    0
    Hi, before I start I wanna say that I rebuilt my transmission, so the problem shouldn't be inside.

    When I shift gears (red button) from high to low and vice versa I have to be extremely gentle on my accelerator pedal and wait for gear to engage. If I press the peddal a little bit harder the gear will engage aggressively and the whole truck would jerk. This has been going on for a long time, I would say a year.
     
    Ker, Sep 27, 2023
    Ker, Sep 27, 2023
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  3. Sep 27, 2023 #2
    skallagrime

    skallagrime Road Train Member

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    Red button is the splitter

    If its being slow, probably gunked up valve in back of transmission
     
    skallagrime, Sep 27, 2023
    skallagrime, Sep 27, 2023
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    Magoo1968, Bean Jr. and Oxbow Thank this.
  4. Sep 27, 2023 #3
    Magoo1968

    Magoo1968 Road Train Member

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    St Malo mb
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    Line plugged or leaking air can cause that . Mine was a slight air leak that made it terribly slow in the morning during winter.
     
    Magoo1968, Sep 27, 2023
    Magoo1968, Sep 27, 2023
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  6. Sep 27, 2023 #5
    Ker

    Ker Bobtail Member

    25
    16
    Mar 11, 2018
    0
    Can you please tell me what lines/valves to inspect?
     
    Ker, Sep 27, 2023
    Ker, Sep 27, 2023
    #5 + Quote Reply
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