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Bags dumping, feel like rolling over, 21 t680

Discussion in 'Experienced Truckers' Advice' started by TEROSE2021, Jul 9, 2021.

  1. Jul 9, 2021 #1
    TEROSE2021

    TEROSE2021 Bobtail Member

    4
    1
    Jul 9, 2021
    0
    2021 kw t680,being pulled off the mountain!!! Front set of air bags on rear axles randomly dump or inflate any time they want driving on straight flat roads, mountains, curves, turns. Makes nose of trailer push opposite of what it needs to. Giving the feeling your bout to roll it over, does this with empty trailer, light/ heavy load, sometimes even bobtailing, replaced leveling valve, checked for leaks been to different shops 7times now. Still no answer. Please help
     
    TEROSE2021, Jul 9, 2021
    TEROSE2021, Jul 9, 2021
    #1
    Bean Jr. Thanks this.
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  3. Jul 9, 2021 #2
    fishonron

    fishonron Medium Load Member

    647
    1,652
    Jul 25, 2017
    North Central Kansas
    0
    Why wouldn't you take the 2021 to a dealership?
     
    fishonron, Jul 9, 2021
    fishonron, Jul 9, 2021
    #2
    alds Thanks this.
  4. Jul 9, 2021 #3
    TEROSE2021

    TEROSE2021 Bobtail Member

    4
    1
    Jul 9, 2021
    0
    I have twice, they won't drive it with a trailer so look at me like I'm crazy because they can't see anything wrong
     
    TEROSE2021, Jul 9, 2021
    TEROSE2021, Jul 9, 2021
    #3
  5. Jul 10, 2021 #4
    Dennixx

    Dennixx Road Train Member

    4,152
    12,718
    Feb 13, 2010
    twin cities
    0
    This is a twin screw and not a tag axle or dummy axle unit right?
     
    Dennixx, Jul 10, 2021
    Dennixx, Jul 10, 2021
    #4
  7. Jul 10, 2021 #5
    TEROSE2021

    TEROSE2021 Bobtail Member

    4
    1
    Jul 9, 2021
    0
    Umm not real sure what you mean? A little more description of what type, something I would be more knowledgeable about please
     
    TEROSE2021, Jul 10, 2021
    TEROSE2021, Jul 10, 2021
    #5
  8. Jul 10, 2021 #6
    Dennixx

    Dennixx Road Train Member

    4,152
    12,718
    Feb 13, 2010
    twin cities
    0
    Is there a driveshaft to the rear axle?
    On a tag or dummy axle the airbags will lift when it senses a slip or sometimes a bump to put more weight for traction on the front or drive axle.
     
    Dennixx, Jul 10, 2021
    Dennixx, Jul 10, 2021
    #6
  9. Jul 10, 2021 #7
    Dale thompson

    Dale thompson Road Train Member

    4,633
    35,640
    Nov 20, 2013
    commerce twp,mi
    0
    Not enough info your description is lacking too many details. Logic says it must be a valve because compressed air only moves when something opens.
     
    Dale thompson, Jul 10, 2021
    Dale thompson, Jul 10, 2021
    #7
  10. Jul 12, 2021 #8
    Omegaangelz

    Omegaangelz Bobtail Member

    22
    21
    Aug 3, 2020
    Ohio
    0
    Sounds like a buddy of mine. Let it get too bad and it'll cause you to be pulled into the jersey barrier on the WV Turnpike, resulting in the destruction of your second truck.

    Thank God you didn't get into business with that dude, Jro
     
    Omegaangelz, Jul 12, 2021
    Omegaangelz, Jul 12, 2021
    #8
  11. Nov 18, 2022 #9
    jbedriver

    jbedriver Bobtail Member

    1
    0
    Nov 18, 2022
    0
    Hey, I am having the same problem with a KW 2016 T680, did you figure out what was wrong? Thank you
     
    jbedriver, Nov 18, 2022
    jbedriver, Nov 18, 2022
    #9
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