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18 speed grinds while cruise is set

Discussion in 'Trucks [ Eighteen Wheelers ]' started by greasehorn, Feb 19, 2020.

Page 2 of 2
  1. Feb 19, 2020 #11
    25(2)+2

    25(2)+2 Trucker Forum STAFF Staff Member

    18,750
    45,501
    Sep 18, 2006
    the road less travelled
    0
    Same ratios in high with final OD. You have more gears on the bottom, useful for heavy haul and off pavement, also steep grades.
     
    25(2)+2, Feb 19, 2020
    25(2)+2, Feb 19, 2020
    #11
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  3. Feb 19, 2020 #12
    BoxCarKidd

    BoxCarKidd Road Train Member

    4,476
    6,511
    Aug 26, 2014
    0
    Loose bell or flywheel housing bolts?
     
    BoxCarKidd, Feb 19, 2020
    BoxCarKidd, Feb 19, 2020
    #12
  4. Feb 19, 2020 #13
    Chubby Fly

    Chubby Fly Medium Load Member

    569
    797
    Nov 25, 2019
    0
    a broken spring inside the transmission? lol
     
    Chubby Fly, Feb 19, 2020
    Chubby Fly, Feb 19, 2020
    #13
  5. Feb 19, 2020 #14
    haycarter

    haycarter Road Train Member

    1,920
    5,317
    Jun 9, 2012
    Australia
    0
    Does It only do It when you're under Power or when Coasting...?????
    Or if you Pop It into Neutral ,Does It still Do It..??
     
    haycarter, Feb 19, 2020
    haycarter, Feb 19, 2020
    #14
  7. Feb 20, 2020 #15
    lester

    lester Midwest's #1 Feed Hauler

    2,920
    7,890
    Jan 2, 2012
    NW, Iowa
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    The rpms going up when the grinding starts doesn't make an #### sense. Only way rpm can go up is if there's something slipping between engine and the tires. Only thing that could really slip is the clutch. Anything else in the drivetrain won't slip. Are you sure the rpm are actually increasing and not just in the driver's head? How much are they increasing?
     
    lester, Feb 20, 2020
    lester, Feb 20, 2020
    #15
  8. Feb 20, 2020 #16
    Chubby Fly

    Chubby Fly Medium Load Member

    569
    797
    Nov 25, 2019
    0
    18 speed huh. Rpms go up and grinding starts. That is in your auxiliary. Hi lo splitter isn’t staying engaged. Take it back in.
     
    Chubby Fly, Feb 20, 2020
    Chubby Fly, Feb 20, 2020
    #16
    swaan Thanks this.
  9. Feb 20, 2020 #17
    greasehorn

    greasehorn Bobtail Member

    6
    1
    Feb 6, 2020
    0
    thank all of you for your help, ill be sure to let yall know what the problem is, im pulling the transmission in the morning. im not a driver, just a wrench (inexperienced one at that) someone said throw out bearing we replaced the clutch and it still does it, and it only does it while the cruise is set on flat ground, if you put it in neutral it stops. if you depress and release clutch it stops. i think its a bad syncro in the split gear, when i take the trans out it goes back to fleet pride and they dissassemble it and determine if they are going to warranty it or not, so im not holding my breath.... thanks again
     
    greasehorn, Feb 20, 2020
    greasehorn, Feb 20, 2020
    #17
  10. Mar 21, 2025 #18
    Tanut82

    Tanut82 Bobtail Member

    1
    0
    Mar 21, 2025
    0
    Did you ever find out the issue?
     
    Tanut82, Mar 21, 2025
    Tanut82, Mar 21, 2025
    #18
  11. Mar 22, 2025 #19
    MTMAUS

    MTMAUS Light Load Member

    223
    175
    Sep 28, 2019
    0
    Listen, he said he would be sure to let us know what the problem was. Geez people these days have no patients, got to give a guy sometime to get it done, people are busy, obviously 5 years just inst enough time....

    Come back in 2030, will probably have it done by then.
     
    MTMAUS, Mar 22, 2025
    MTMAUS, Mar 22, 2025
    #19
    HillbillyDeluxeTruck and Numb Thank this.
  12. Mar 24, 2025 #20
    Powder Joints

    Powder Joints Subjective Prognosticator

    7,688
    7,782
    Sep 25, 2007
    Rosamond, SoCal
    0
    Maybe he got it apart and , well its still apart. Feb 6, 2020, is a couple of hours or so ago.
     
    Powder Joints, Mar 24, 2025
    Powder Joints, Mar 24, 2025
    #20
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