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2018 579 Vibrates/Shakes 60-65mph

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Brandon0928, Nov 7, 2022.

  1. Nov 7, 2022 #1
    Brandon0928

    Brandon0928 Light Load Member

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    May 14, 2022
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    When I get to 60-65 truck starts vibrating. Feel it in the seat and steering wheel. Drive line doesn’t have any play. Nothing has changed. Still have same tires that are in good shape and correct pressure. Ride height is good. What could be causing this ? Between 50-60 it is there but not very noticeable unless your looking for it. Seems like it will vibrate for 3 seconds and quits for 3 seconds and vibrates for another 3 scones and so fourth. Any ideas ?
     
    Brandon0928, Nov 7, 2022
    Brandon0928, Nov 7, 2022
    #1
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  3. Nov 7, 2022 #2
    Goodysnap

    Goodysnap Road Train Member

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    Check air suspension ride height. Low or high throws off driveline operating angles
     
    Goodysnap, Nov 7, 2022
    Goodysnap, Nov 7, 2022
    #2
    Brandon0928 Thanks this.
  4. Nov 25, 2022 #3
    Jooeugen

    Jooeugen Bobtail Member

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    Mar 14, 2021
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    May have same problem:
     
    Jooeugen, Nov 25, 2022
    Jooeugen, Nov 25, 2022
    #3
    Brandon0928 Thanks this.
  5. Nov 29, 2022 #4
    scoobertdoo

    scoobertdoo Road Train Member

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    Throw a wheel weight, lose a chunk of rubber, rock in the tire.

    My steers went out of balance and caused vibration at only 64mph
     
    scoobertdoo, Nov 29, 2022
    scoobertdoo, Nov 29, 2022
    #4
  7. Nov 29, 2022 #5
    Brandon0928

    Brandon0928 Light Load Member

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    Was the trailer!
     
    Brandon0928, Nov 29, 2022
    Brandon0928, Nov 29, 2022
    #5
  8. Nov 29, 2022 #6
    scoobertdoo

    scoobertdoo Road Train Member

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    Trailer what?
     
    scoobertdoo, Nov 29, 2022
    scoobertdoo, Nov 29, 2022
    #6
  9. Nov 29, 2022 #7
    Brandon0928

    Brandon0928 Light Load Member

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    The trailer was causing the shake in the truck
     
    Brandon0928, Nov 29, 2022
    Brandon0928, Nov 29, 2022
    #7
  10. Nov 29, 2022 #8
    scoobertdoo

    scoobertdoo Road Train Member

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    What about the trailer? The paint color? Flag on the back door? Tree poked into the side? Dragging a compact car under the tandems?
     
    scoobertdoo, Nov 29, 2022
    scoobertdoo, Nov 29, 2022
    #8
  11. Nov 29, 2022 #9
    Brandon0928

    Brandon0928 Light Load Member

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    May 14, 2022
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    Tires out of round and severely out of alignment
     
    Brandon0928, Nov 29, 2022
    Brandon0928, Nov 29, 2022
    #9
  12. Nov 29, 2022 #10
    scoobertdoo

    scoobertdoo Road Train Member

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    There ya go! So easy.... :rolleyes:
     
    scoobertdoo, Nov 29, 2022
    scoobertdoo, Nov 29, 2022
    #10
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