Changed rear parking break pads, makes thumping noise.

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by JohnI, Jan 28, 2019.

  1. JohnI

    JohnI New Member

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    I recently changed the rear parking break pads on both rear wheels on my Gen2 Prius, think it is a 2006 model, registered in 2007.

    And after the change, the rear wheels make a thumping noise each turn.


    The noise is barely noticeable when first starting to drive, but gets louder after a while.
    Its a loud thumping at slow speeds, low at average city driving speeds.
    The noise goes away when lightly pushing the parking brake pedal while driving.
    There is no noise when reversing.

    Any clues to what I have done wrong,
    Everything seems to be in the correct place

    Thanks John I.
     
    #1 JohnI, Jan 28, 2019
  2. Skibob

    Skibob Senior Member

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    Do you have disks or drums in the rear?
     
    #2 Skibob, Jan 28, 2019
  3. bisco

    bisco cookie crumbler

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    #3 bisco, Jan 28, 2019
  4. ChapmanF

    ChapmanF Senior Member

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    In Norway, it might have both, top-hat style.
     
    #4 ChapmanF, Jan 28, 2019
  5. Mendel Leisk

    Mendel Leisk MMX GEN III

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    Yes or no: if he has drums it's not my favourite bug bear, and if it's disks, there is another style of rear disc brakes, with a mini-drum brake (per the US v), so not really sure. Third gen rear (disk) brakes are problematic, especially to the uninitiated DIY'r..., like myself.
     
    #5 Mendel Leisk, Jan 28, 2019
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  6. JohnI

    JohnI New Member

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    I have disks.
    Mine look something like this, this is a picture from a Toyota Rav,
    (image from Toyota Rav forum.)
    [​IMG]

    -John I
     
    #6 JohnI, Jan 29, 2019
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  7. Mendel Leisk

    Mendel Leisk MMX GEN III

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    In English we'd call those "drum" brakes. I've attached the (North American spec) 2nd gen Repair Manual section on brakes.

    Not sure regarding the sound. You reinstalled the brake shoe hold down clips; the shoes are held tightly against the backing plate?

    upload_2019-1-29_9-43-51.png
     

    Attached Files:

    #7 Mendel Leisk, Jan 29, 2019
    Last edited: Jan 29, 2019
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  8. bisco

    bisco cookie crumbler

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    odd, i thought europe got full discs starting with gen 2.
     
    #8 bisco, Jan 29, 2019
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