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Clunking noise from suspension area

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by devin_d123, Mar 31, 2021.

  1. devin_d123

    devin_d123 New Member

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    A few months ago I noticed a clunking noise coming from under the car when driving at lower speeds over uneven pavement or bumps. I don't hear anything when driving at higher speeds. Today I rocked the car on all 4 ends to isolate the noise. It's coming from the suspension area next to the wheel on the front end passenger side. Any feedback on what's wrong and how urgent it is to fix it would be much appreciated. Here's a video of the noise it made when I rocked the car:


     
    #1 devin_d123, Mar 31, 2021
    Last edited: Mar 31, 2021
    kenoarto likes this.
  2. bisco

    bisco cookie crumbler

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    you probably need new bushings, not urgent. look around for a suspension shop.
     
  3. Mdv55

    Mdv55 Active Member

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    You really need to raise the car and start grabbing parts to see what has play. Sway bar links would be my first stop since they're cheap and knock like that when they're worn. It could be a lot of things though. You need to dig a little deeper. That video isn't going to help with a definitive diagnosis.
     
    Fostel likes this.
  4. tankyuong

    tankyuong Senior Member

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    Stabilizer links
     
  5. Paul E. Highway

    Paul E. Highway Active Member

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    Sway bar links aka stabilizer links aka stab links. Sways bar bushings while you're at it. Cheap and easy.
     
  6. wingfeathers

    wingfeathers Junior Member

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    If it helps future visitors to this discussion, I had a similar issue which I was finally able to resolve! I had the vehicle inspected by technicians twice, who couldn't find anything loose with the suspension or steering. I poked around and found two possible sources: the plastic wheel well liners and the heat shield towards the front of the cat. Each of these items were slightly loose when I pushed on them. I placed some rubber padding between the liners, and for the heat shield I installed new fasteners. My clunk is gone. Hope this helps someone!
     
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  7. wingfeathers

    wingfeathers Junior Member

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    Forgot to add, it could also be sway bar links. I noticed the rubber boots on mine were torn. Check those if the above post didn't help
     
  8. America964

    America964 Junior Member

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    I have a clunking noise. Mechanic said it was the shocks and he couldn't do right away so I bought front and rears and did the job myself. Noise still there so I replaced the sway bar bushings, clunk still there. The sway bar links looks in great shape, but think that might be the only thing left I haven't tried. The clunking noise sounds like a dribble and at higher speeds the noise goes away. Any other source of the noise. Ordering the links now
     
  9. Canada 509

    Canada 509 New Member

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    I got exactly same issues (noise on small bumps only)and exactly same steps to fix it. How did you end up? Was it sway bars?
     
    #9 Canada 509, Jun 15, 2023
    Last edited by a moderator: Jun 15, 2023
  10. AdRoc

    AdRoc New Member

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    Also suffering from this hell, did this fix it?
     
  11. ILIA DEMIDOV Los angeles

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    I’ve got this struggle this week , gonna find and fix it and post here . I just changed 1 sway bar link last week , but it looks solid . Maybe heat shield . These sounds are annoying!
     
  12. ILIA DEMIDOV Los angeles

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    I’ve got this struggle this week , gonna find and fix it and post here . I just changed 1 sway bar link last week , but it looks solid . Maybe heat shield . These sounds are annoying!
     
  13. ILIA DEMIDOV Los angeles

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    I’ve got this sound a few days after change a sway bar link that looked solid . However problem of knocking sound was because the bolt on sway bar link was not fully tightened.when I was shaking sway bar link from left to right it was solid , but then I tried to push it up and then again from down to up , it knocked . I tighted up bolt on the top of sway link and it worked !