1. Welcome to 4Runners.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all 4Runner discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other 4Runner owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Flushing dual brake reservoirs

Discussion in '3rd Gen 4Runners (1996-2002)' started by 4runnerOner, Aug 28, 2025 at 1:49 AM.

  1. Aug 28, 2025 at 1:49 AM
    #1
    4runnerOner

    4runnerOner [OP] New Member

    Joined:
    Sep 4, 2024
    Member:
    #42616
    Messages:
    7
    Gender:
    Male
    First Name:
    Santiago
    Why is this information so hard to find?
    I need to do a brake flush but i have 2 brake reservoirs and even with service information, i cant find anything about it.

    99 Gen 3 Standard transmission. Anyone know this procedure?

    Thx
     
  2. Aug 28, 2025 at 9:57 AM
    #2
    turbodb

    turbodb New Member

    Joined:
    Nov 13, 2024
    Member:
    #43971
    Messages:
    47
    Gender:
    Male
    First Name:
    Dan
    PNW
    Vehicle:
    AdventureTaco
    You should only have one brake fluid reservoir. Toss up a photo so we can see what you're looking at.
     
  3. Aug 28, 2025 at 10:34 AM
    #3
    Airdam

    Airdam New Member

    Joined:
    May 4, 2024
    Member:
    #40249
    Messages:
    1,035
    First Name:
    airdam
    Vehicle:
    2008 Urban Runner 2012 Limited 4x4 2023 TRD Sport 4x4
    You have one brake reservoir and one clutch master cylinder reservoir

    The one closest to the fender is for the clutch but it can be bled just like brakes. There is a bleeder down on the side of the trans.

    Typically when bleeding brakes, if doing it the old fashioned way you would vacuum the oil out of the master cylinder, clean and wipe it out, and fill with new fluid.
    Then you would start bleeding the wheel farthest away from the master cylinder, being the passengers rear. Bleed it until you get new clear fluid.
    Then you would bleed the drivers rear wheel till you get new clear fluid.
    Remember to constantly fill the master cylinder reservoir up and keep it topped off with new fluid.
    Then bleed the rear brake bias valve if you have one. Not sure if the 3rd gen has one on the rear axle or not
    Then you would go to the right front wheel and bleed until you get new clear fluid.
    Then you would bleed the drivers front wheel until you get new clear fluid.
    BE SURE to keep the master cylinder reservoir topped off with new brake fluid. If it runs out it will put air in the lines and you have to start all over.
     
  4. Aug 28, 2025 at 4:59 PM
    #4
    4runnerOner

    4runnerOner [OP] New Member

    Joined:
    Sep 4, 2024
    Member:
    #42616
    Messages:
    7
    Gender:
    Male
    First Name:
    Santiago
    CLUTCH!! damn makes sense ok thanks! I was wondering what that bleeder was on my transmission!! Thank you!!
     

Products Discussed in

To Top