Ghost gear

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Jleippi, Jun 11, 2024.

  1. Jleippi

    Jleippi Bobtail Member

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    7
    Mar 6, 2024
    0
    Hi I got the 13 speed Eaton transmission in a 1997 kenworth t800 . Couple times recently I downshifted from 5 th gear to 4th gear and it seemed like it shifted but it just revs like it’s in neutral and then after a second or so locks into gear and starts pulling again. Never had this happen when up shifting. It has happened a few times intermittently. Any idea what’s happening?
     
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  3. AModelCat

    AModelCat Road Train Member

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    Jul 7, 2015
    Canuckistan
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    Range shift sounds a bit lazy. I believe the air exhausts from the range piston on a downshift so check the exhaust isn't plugged up or restricted.
     
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