Truck slips on acceleration

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by OldeSkool, Sep 5, 2023.

  1. OldeSkool

    OldeSkool Road Train Member

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    Either empty or loaded makes little difference. Also gear seems to make little difference. Under full acceleration or sometimes going up a hill it will rev up a bit like something is slipping. Any idea what it could be? 2017 Freightliner Cascadia. 10 speed manual. 565,000 miles.
     
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  3. diesel guy454

    diesel guy454 Medium Load Member

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  4. blairandgretchen

    blairandgretchen Road Train Member

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    Second that.
     
  5. OldeSkool

    OldeSkool Road Train Member

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    Well y’all confirmed what I suspected
     
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  6. Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

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    Whatever you do, don’t get one of those “Self-adjusting” clutches.
     
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  7. Lazer

    Lazer Road Train Member

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    Get under that truck, and adjust the clutch.
     
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  8. lester

    lester Midwest's #1 Feed Hauler

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    Do you have free play on the pedal?
     
  9. 201

    201 Road Train Member

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    :(:crybaby::cwm10: :evil3: , not the end of the world, usually the disc springs break before it slips. Slipping could indicate something leaking on it? Slipping is the worst thing, because now the flywheel is warped, and will chatter like Aunt Tilly with a glass of wine. I went through 3 clutches( on 2 separate trucks) and everytime, the springs in the disc broke. I went back to the parts guy and said, this isn't right, he said, well you can go with "Extreme Duty", with no springs. I said, lay it on me, brother, and never had a clutch issue again.
     
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  10. Rideandrepair

    Rideandrepair Road Train Member

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    Yep, if you have any free play at all and it’s slipping, time for a new clutch. That’s what they do, slip at higher RPMs only at first. Eaton 2250 easy pedal gets my vote. Great clutch at a great price. Should last over a million miles.
     
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  11. OldeSkool

    OldeSkool Road Train Member

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    Well you guys were right. I had the clutch replaced. It was a self adjusting clutch so they couldn’t do anything with it.
     
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