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Big clunk when stopping and starting

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Dommieboy, Nov 4, 2019.

  1. Dommieboy

    Dommieboy New Member

    Joined:
    Oct 5, 2019
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    Location:
    Utah
    Vehicle:
    2010 Prius
    Model:
    Three
    So when I am stopping I get a big metallic cluck. The clunk happens right as I am coming to a stop, I also get this upon accelerating. The accelerating happens right as I am going.
    I was able to get the car on a lift and put it in drive and then applied the brake, I can reproduce this cluck off the ground so I know suspension isn't part of it. I took the wheels off and looked in and the engine and trans move to the front of the car when this clunk happens. Almost like a motor mount or transmission mount broke.
    So I would like to start at the mounts, how many are there for the motor and the transmission? And where abouts are they?
    Also anyone else have any ideas what this could be?
    Thanks for your help in advance
     
  2. dig4dirt

    dig4dirt MoonGlow

    Joined:
    Apr 6, 2012
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    Location:
    Lancaster Co PA
    Vehicle:
    2014 Prius c
    Model:
    Two
    How many miles?

    Have you drain and fill your trans fluid at all?

    Any recent or any brake service/inspections?
     
  3. Dommieboy

    Dommieboy New Member

    Joined:
    Oct 5, 2019
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    Location:
    Utah
    Vehicle:
    2010 Prius
    Model:
    Three

    I did the trans fluid 20k ago and had the left front hub bearing and pads done last week.
    I excused the hub bearing because it fixed the grinding issue that was present before.
    Could the brake caliper be having problems on that side? or the bearing?
     
  4. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    axles shafts maybe?
     
  5. dig4dirt

    dig4dirt MoonGlow

    Joined:
    Apr 6, 2012
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    Location:
    Lancaster Co PA
    Vehicle:
    2014 Prius c
    Model:
    Two
    Has this noise got worse or just started happening?
    Tie rods and all those bushings in the front end?
    How many miles?
     
  6. Dommieboy

    Dommieboy New Member

    Joined:
    Oct 5, 2019
    5
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    Location:
    Utah
    Vehicle:
    2010 Prius
    Model:
    Three
    160k miles.
    The noise just started happening. It is bad enough that I haven't driven it in a few days. We are down to using my wife's Prius.
    At first glance all the Tie rod bushings look fine.
    I will test the CV axels tonight.
     
    bisco likes this.
  7. Dommieboy

    Dommieboy New Member

    Joined:
    Oct 5, 2019
    5
    2
    0
    Location:
    Utah
    Vehicle:
    2010 Prius
    Model:
    Three
    Solved. I have never encountered this type of behavior from cv axels. My passenger one failed where it connects to the trans.
    Thanks for the direction on getting me there. I was certain it was a failed mount.
     
    dig4dirt likes this.
  8. mmartin6tg

    mmartin6tg New Member

    Joined:
    Sep 17, 2021
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    Location:
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    Vehicle:
    2015 Prius c
    Model:
    Two
    I have the same noise, just replaced both axels and fluid 2 months ago because of clicking. now i have a click/clunk on take off and stop. everything is tight. how did you test your axels?