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Shake Issue

Discussion in 'Western Star Forum' started by JJMUFO, May 10, 2016.

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  1. May 10, 2016 #1
    JJMUFO

    JJMUFO Bobtail Member

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    I have a NEW 4700 WesternStar that has a shake between 70 and 80 KM. I have replaced the tires and Rims and it has not cured the problem. Is this a Common thing with these trucks? (Detroit Rearends)?
    Please let me know if anyone else has had this issue or any ideas on how this can be fixed.
     
    JJMUFO, May 10, 2016
    JJMUFO, May 10, 2016
    #1
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  3. May 10, 2016 #2
    damutt

    damutt Road Train Member

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    Check the driveshaft?
     
    damutt, May 10, 2016
    damutt, May 10, 2016
    #2
    JJMUFO Thanks this.
  4. May 10, 2016 #3
    Sportster2000

    Sportster2000 Road Train Member

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    Do you feel it in the steering wheel?
     
    Sportster2000, May 10, 2016
    Sportster2000, May 10, 2016
    #3
    JJMUFO Thanks this.
  5. May 10, 2016 #4
    JJMUFO

    JJMUFO Bobtail Member

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    No, it does not appear to shake in the steering wheel.
     
    JJMUFO, May 10, 2016
    JJMUFO, May 10, 2016
    #4
  7. May 10, 2016 #5
    JJMUFO

    JJMUFO Bobtail Member

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    The driveshaft has been checked, along with a "Shaker Test" which concluded the shake was not bad enough for the machine to find it. But when you drive the truck you can definately tell theres a shake.
     
    JJMUFO, May 10, 2016
    JJMUFO, May 10, 2016
    #5
  8. May 10, 2016 #6
    damutt

    damutt Road Train Member

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    We're are you feeling the shake
     
    damutt, May 10, 2016
    damutt, May 10, 2016
    #6
  9. May 10, 2016 #7
    JJMUFO

    JJMUFO Bobtail Member

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    The cab is air ride, so you feel it throughtout, very minor in the steering wheel. Some in the hood, but mostly in the floor(Feet).
     
    JJMUFO, May 10, 2016
    JJMUFO, May 10, 2016
    #7
  10. May 10, 2016 #8
    AModelCat

    AModelCat Road Train Member

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    How is the alignment? Reason I ask is my dad had a truck that the drive axles were misaligned and it caused a vibration due to the the driveline angles being off left to right. Never really noticed odd tire wear because it spent about 50% of the time off highway.
     
    AModelCat, May 10, 2016
    AModelCat, May 10, 2016
    #8
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  11. May 10, 2016 #9
    JJMUFO

    JJMUFO Bobtail Member

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    Yes I have been told its all aligned properly, This was checked within the last few days.
     
    JJMUFO, May 10, 2016
    JJMUFO, May 10, 2016
    #9
  12. May 10, 2016 #10
    Bakerman

    Bakerman Road Train Member

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    Check motor mount and or trans. mounts. Just had a new trans put in my truck, mechanic said mounts were toast-I also had a bad vibration under full throttle.
     
    Bakerman, May 10, 2016
    Bakerman, May 10, 2016
    #10
    JJMUFO Thanks this.
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