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popping noise from speed bump

Discussion in 'Technical Chat' started by ywen, Feb 5, 2010.

  1. Feb 5, 2010 at 11:28 PM
    #1
    ywen

    ywen [OP] Well-Known Member

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    My 03 TRD started to develop a popping sound, which I can feel slightly thru the floor board.

    It occurs when driving diagonally thru a speed bump or a driveway incline at speeds of about 10mph. When I'm going diagonally, the steering wheel could be straight or turned. If I go thru the same bump straight on, that sound does not happend. If I go thru the same bump slower, the sound does not occur whether I'm diagonal or not.. so it definitely seems to be speed dependent.

    What could it be? Thanks

    oh and i have stock everything
     
  2. Feb 6, 2010 at 12:12 AM
    #2
    BakoTruck

    BakoTruck Well-Known Member

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    Herbie Hancock
    Bakersfield, CA
    Vehicle:
    05 PreRunner TRD
    Mostly stock for now, I have added a cb radio, various cheap mods and I plan on adding aftermarket wheels and other items in the future.
    I don't know? I wonder if something could be loose? Maybe the nuts/bolts that hold your truck body to your frame? They have a rubber grommet on them with a bolt going threw, I heard they can get loose? Maybe the bolt is loose and causing your chassis to move up or down, could be causing the popping sound.

    Could also be suspension related, or drivetrain? Could be a million different things.
     
  3. Feb 6, 2010 at 7:21 AM
    #3
    ywen

    ywen [OP] Well-Known Member

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    I want to grease all the suspension components down to see if that would help.. what kind of grease can I use? Would a spray down all over the place help?
     
  4. Feb 6, 2010 at 12:07 PM
    #4
    BakoTruck

    BakoTruck Well-Known Member

    Joined:
    May 1, 2009
    Member:
    #16674
    Messages:
    2,823
    Gender:
    Male
    First Name:
    Herbie Hancock
    Bakersfield, CA
    Vehicle:
    05 PreRunner TRD
    Mostly stock for now, I have added a cb radio, various cheap mods and I plan on adding aftermarket wheels and other items in the future.
    Yeah I don't think spraying lubricant all over the place would be good for it. You might cause more unwanted noise. Especially if you spray on anything that's rubber. I think lrgrnr brings up a good point, that it could be shock related.

    I would suggest checking under the truck for anything that could be loose, especially around the suspension area, and anything with a lot of play.
    Re-torque as much bolts to specs, lube your drive shafts, etc.
     
  5. Feb 6, 2010 at 12:44 PM
    #5
    ywen

    ywen [OP] Well-Known Member

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    It's got 74K right now.. but I don't know if the previous owner abused it..
     
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