1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Rear brake noise

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Ryan Washburn, Jul 23, 2019.

Tags:
  1. Ryan Washburn

    Ryan Washburn New Member

    Joined:
    Jul 23, 2019
    1
    0
    0
    Location:
    Concord, Nh
    Vehicle:
    2010 Prius
    Model:
    II
    2010 with 198k. Replaced rear pads and calipers. Right side has odd rubbing sound. Not grinding or squealing. Could this be caused by uneven caliper movement? Looks to me like the caliper isn’t moving evenly when braking and the leading edge (topside) moves first. Slide pins are lubed and moving freely. Tried to upload vid but can’t for some reason.
     
    #1 Ryan Washburn, Jul 23, 2019
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,703
    48,947
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    welcome!
    did you orient them properly, according to the service manual?
     
    #2 bisco, Jul 23, 2019
    Last edited: Jul 23, 2019
    Mendel Leisk likes this.
  3. schmuber

    schmuber Member

    Joined:
    Oct 9, 2018
    115
    84
    1
    Location:
    Georgia
    Vehicle:
    2010 Prius
    Model:
    N/A
    Raise the side in question and spin the wheel by hand. You'll hear and see the source right away.

    PS: Had a bad experience with Bosch QuietCast "springless" pads. Went back to the regular pads with springs… problem solved.
     
    #3 schmuber, Jul 23, 2019
  4. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    54,674
    38,219
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Yeah when reassembling it's mandatory that the cross pattern on piston face be oriented like an X, so that the pin on back of pad is in between the spokes. Further, you want to ensure everything is well seated thus: pump brake pedal multiple times, then reconnect 12 volt, then a short test drive.

    On return, apply and release the emergency brake a few times, chock front wheels, raise rear, and check that the wheels will easily spin a couple of revs with a good push.

     
    #4 Mendel Leisk, Jul 23, 2019
  5. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    23,278
    15,077
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    What had happened to the calipers, that they needed replacement?
     
    #5 ChapmanF, Jul 23, 2019
    Mendel Leisk likes this.
  6. schmuber

    schmuber Member

    Joined:
    Oct 9, 2018
    115
    84
    1
    Location:
    Georgia
    Vehicle:
    2010 Prius
    Model:
    N/A
    Damn rodents are getting out of hand.
     
    #6 schmuber, Jul 23, 2019
  7. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    54,674
    38,219
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Very good point. I wonder if he meant to say rotors??
     
    #7 Mendel Leisk, Jul 23, 2019
(You must log in or sign up to post here.)