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01 Taco 4dr 3.4L "shimmy" at HW speed

Discussion in '1st Gen. Tacomas (1995-2004)' started by baloo, Aug 20, 2008.

  1. Aug 20, 2008 at 6:56 AM
    #1
    baloo

    baloo [OP] Member

    Joined:
    Aug 19, 2008
    Member:
    #8625
    Messages:
    8
    N. Illinois
    Vehicle:
    01 Taco 4dr 3.4L FlexFuel
    FlexFuel Conversion ISR mod DeckPlate Mod TrueFlowAir Filter XM/Sirius ScanGauge II Roadmaster Rear Suspension LINE-X Bedliner LINE-X'd Steptubes LINE-X'd bullbar LINE-X'd fender flares
    I have tried everything. Alignments, road force balancing, rotation, roadmaster upgrade, etc. No matter what I try or replace, I have a "shimmy" going past 65 mph.

    Anyone else have a similar problem or suggestions what to check?
     
  2. Aug 20, 2008 at 6:59 AM
    #2
    tacomaman06

    tacomaman06 Carolina Alliance: Enforcer

    Joined:
    May 1, 2007
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    First Name:
    Will
    York,South Carolina
    Vehicle:
    '16 Tundra TRD Pro
    getting there....
    have you checked your steering rack bushings?? have you checked the leaf spring bushings, or maybe even the center support bearing on the driveshaft?? check those and see if you have any looseness or if the rubber bushings look bad/cracked.
     
  3. Aug 20, 2008 at 7:57 AM
    #3
    HighDesert

    HighDesert Active Member

    Joined:
    Dec 9, 2007
    Member:
    #3779
    Messages:
    34
    Vehicle:
    99 4x4
    Most speed-sensitive vibrations are due to an out-of-balance wheel. Since it appears you have checked this issue, consider a bent wheel rim (observe and check with dial indicator), out-of-round tire (check with dial indicator), out-of-round wheel rim (check with dial indicator), worn shocks (look for leaking fluid or bounce vehicle), worn steering linkage (looseness in steering), bad wheel bearing (jack and grab the tire top and bottom--should be no wiggle), driveshaft that might be bent or imbalanced (look for dings, no wiggle, or did you change your u-joints and not index the driveshaft). If you have a lazy-man transmission you might have a loose torque converter.
     
  4. Aug 22, 2008 at 2:21 PM
    #4
    ubermx5

    ubermx5 Well-Known Member

    Joined:
    May 21, 2008
    Member:
    #6783
    Messages:
    264
    Santa Clara CA
    Vehicle:
    98 2.4 5 speed
    K&N Air filter
    What tires and wheel do you have?

    How much wait is on each wheel.
    LF = 2OZ outside 2OZ inside is an example.

    If there is to much weight then the tires needs to taken off and moved around.
    Or the tires need to be replaced all toghter.

    Also make sure the Wheel and hub are clean and rust free.
    make sure your Radiator hoses are flexable. yes these can cause this issue as well.

    Checking all your bushing is huge... like HighDesert has written..

    Are these street tires or Off Road tires.
    If they are off road then you might be doomed.
     
  5. Aug 25, 2008 at 7:57 PM
    #5
    stucksucksnayota

    stucksucksnayota Well-Known Member

    Joined:
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    First Name:
    Barry
    Fort Smith, Arkansas
    Vehicle:
    14 Taco 4x4 TRD Sport DCSB
    OEM roof rack, Shorty antenna (eBay), soft tonneau cover, K&N drop in air filter, bed mat, interior LED lights, 5100's, MT tires to come soon!!!
    Idk the technical fix for your problem but I know on my 4dr taco. I have about 20k miles on a set of buckshoot mudders. And its werid every once in a while when im rolling about 65mph ill get a shimmer and sometimes it wont go away until i rotate my tires. But just some thoughts could be your tire are getting wore out or maybe there not wearing very good
     
  6. Oct 12, 2008 at 2:21 PM
    #6
    notbrigum

    notbrigum Well-Known Member

    Joined:
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    #9890
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    88
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    Male
    Chandler AZ
    Vehicle:
    08 double cab 4x4
    TRD intake, Magnaflow exhaust, billet grille, tube steps
    Mine is a brand new 08 double cab 4Wd and does the same thing. Tires rebalanced 2x, nothing. It's subtle but there. Ideas? I seen some sugguest it's the main driveshaft?
     
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