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

Brake Booster Pump Nightmares

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Ron Adams, May 30, 2024.

  1. Ron Adams

    Ron Adams Junior Member

    Joined:
    Feb 25, 2020
    3
    1
    0
    Location:
    Indianapolis, IN
    Vehicle:
    2005 Prius
    Model:
    I
    Hello, We recently had the brake booster pump go out on our 2010 Prius. Took it to the dealer and they wanted over 3k to replace both the pump and the master cylinder. I did a bunch of research, and learned there was a recall, which we didn't qualify for at 217,000 miles, and also couldn't find any info saying that you had to replace both parts when the pump goes bad. My friend's shop replaced just the brake booster pump, and could not get the learn proceedure to clear the warning lights. The toyota dealer tried and couldn't clear them, so it went back to my friend's shop and they replaced the master cylinder, and still couldn't get the codes cleared with their fancy Snapon scanner equipment. Can anyone enlighten me on what's going on?
     
    #1 Ron Adams, May 30, 2024
  2. Tombukt2

    Tombukt2 Senior Member

    Joined:
    Nov 29, 2020
    10,376
    1,792
    0
    Location:
    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    In the Toyota bleeding procedure there are some things that may have to be done like linear valve offset or something along those lines and if your snap-on scanner doesn't tell you that you have to do that and it fails you just because it can't get through the bleed procedure but you don't know why then I guess that might cause a problem like this but I'm not sure It seems like you've replaced the two $700 more pieces which are the two pieces generally that need to be replaced they're about the same price as each other they just do different functions
     
    #2 Tombukt2, May 30, 2024
  3. Brian1954

    Brian1954 Senior Member

    Joined:
    Jan 31, 2021
    1,109
    410
    0
    Location:
    South Central PA, USA
    Vehicle:
    2011 Prius
    Model:
    III
    Were the replacement parts new OEM or used parts?
     
    #3 Brian1954, May 30, 2024
  4. Ron Adams

    Ron Adams Junior Member

    Joined:
    Feb 25, 2020
    3
    1
    0
    Location:
    Indianapolis, IN
    Vehicle:
    2005 Prius
    Model:
    I
    The parts were brand new Toyota parts...
     
    #4 Ron Adams, Jun 1, 2024
(You must log in or sign up to post here.)