Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

Occasional grinding shifting to high range

Discussion in 'Trucks [ Eighteen Wheelers ]' started by lester, May 10, 2017.

Page 1 of 2
  1. May 10, 2017 #1
    lester

    lester Midwest's #1 Feed Hauler

    2,935
    7,940
    Jan 2, 2012
    NW, Iowa
    0
    18918b. Starred a few weeks ago and getting more frequent. When I flip to the high range sometimes it grinds something terrible. Are my syncros shot or could the range valve just be sticking or slow? Only does it low to high never had issue high to low. Sitting still in neutral I can hear it move fine everytime. Tell me it's not the syncros
     
    lester, May 10, 2017
    lester, May 10, 2017
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. May 10, 2017 #2
    Tug Toy

    Tug Toy Road Train Member

    7,018
    73,580
    Jul 4, 2015
    Corn field
    0
    It's NOT the syncros.
     
    Tug Toy, May 10, 2017
    Tug Toy, May 10, 2017
    #2
    Bean Jr. Thanks this.
  4. May 10, 2017 #3
    lester

    lester Midwest's #1 Feed Hauler

    2,935
    7,940
    Jan 2, 2012
    NW, Iowa
    0
    But be honest
     
    lester, May 10, 2017
    lester, May 10, 2017
    #3
  5. May 10, 2017 #4
    bigguns

    bigguns Road Train Member

    2,846
    6,854
    Jun 13, 2013
    Omega,GA
    0
    Remove the air filter front the back of the transmission and replace it as a whole assembly or just the filter inside if you can buy only the filter. I also occasionally add silicone spray to aid in lubricating the moving parts that shift the transmission. The slave valve on the side of the transmission needs to work properly to get the air to shift the transmission. If you spray in some silicone it needs to be after the filter so he filter doesn't trap it and prevent it from reaching the slave valve.
     
    bigguns, May 10, 2017
    bigguns, May 10, 2017
    #4
    Chinatown and lester Thank this.
  7. May 10, 2017 #5
    Tug Toy

    Tug Toy Road Train Member

    7,018
    73,580
    Jul 4, 2015
    Corn field
    0
    Sorry couldn't resist. Lol
     
    Tug Toy, May 10, 2017
    Tug Toy, May 10, 2017
    #5
    BoxCarKidd Thanks this.
  8. May 10, 2017 #6
    swaan

    swaan Road Train Member

    2,942
    4,374
    Jul 12, 2009
    BC canada
    0
    Hate to say it but its your syncro ring in back side of trans. It will get worse and worse. I would take it to a good trans shop have them go through the back end of the trans.
     
    swaan, May 10, 2017
    swaan, May 10, 2017
    #6
    Diesel Dave, bigguns, G13Tomcat and 1 other person Thank this.
  9. May 11, 2017 #7
    x1Heavy

    x1Heavy Road Train Member

    34,016
    42,139
    Mar 5, 2016
    White County, Arkansas
    0
    And shift a little slower.

    Try that as a way of buying time.
     
    x1Heavy, May 11, 2017
    x1Heavy, May 11, 2017
    #7
    Diesel Dave Thanks this.
  10. May 11, 2017 #8
    lester

    lester Midwest's #1 Feed Hauler

    2,935
    7,940
    Jan 2, 2012
    NW, Iowa
    0
    Yeah it seems if I shift at lower rpm it is less likely to happen. Is the syncro ring in the back half of the tranny? Can it be repaired without dropping the whole trans out? (Which I just had hanging to replace clutch )

    Thanks men
     
    lester, May 11, 2017
    lester, May 11, 2017
    #8
  11. May 11, 2017 #9
    swaan

    swaan Road Train Member

    2,942
    4,374
    Jul 12, 2009
    BC canada
    0
    Yes.
    Its in the back half.
    A good trans shop can drop that and repair the syncro.
     
    swaan, May 11, 2017
    swaan, May 11, 2017
    #9
    lester Thanks this.
  12. May 11, 2017 #10
    OldSchoolCool

    OldSchoolCool Bobtail Member

    23
    16
    Dec 18, 2015
    Southwest Oklahoma
    0
    Are you flipping to high range you're still in gear or while in you're in neutral?
     
    OldSchoolCool, May 11, 2017
    OldSchoolCool, May 11, 2017
    #10
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

    • Page 1 of 2