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

Brake fluid leak

Discussion in '4th Gen 4Runners (2003-2009)' started by James deere, Apr 22, 2025.

  1. Apr 22, 2025 at 5:22 PM
    #1
    James deere

    James deere [OP] New Member

    Joined:
    Apr 21, 2025
    Member:
    #46678
    Messages:
    1
    Gender:
    Male
    First Name:
    Ryan
    Vehicle:
    2003 4 Runner limited
    OK so I have an 03 limited and just found a leak out of the module. Didn't see it when I bought the vehicle, it's just a dribble and has been driving fine with complete use of brakes so far. I've kept it topped off but still want to patch the small leak without replacing the entire ABS module. I've tried jb weld (2 coats) but it still continues to leak. Any suggestions?
     
  2. Apr 22, 2025 at 8:07 PM
    #2
    leftyfire

    leftyfire New Member

    Joined:
    Jan 6, 2025
    Member:
    #44857
    Messages:
    103
    Gender:
    Male
    First Name:
    Michael
    Colorado Springs
    Vehicle:
    2006 Limited V6
    Idk man. You are kind of playing a dangerous game in my opinion. I get the module is expensive. But putting a band aid on such a necessary safety system is not a great idea. Replace the module. Think of other drivers too.
     
  3. Apr 23, 2025 at 3:56 AM
    #3
    AuSeeker

    AuSeeker Old As Dirt

    Joined:
    Aug 4, 2018
    Member:
    #6604
    Messages:
    12,371
    Gender:
    Male
    First Name:
    Skip
    South Carolina
    Vehicle:
    2004 Limited
    Without photos of exactly where it's leaking no one can help you, JB WELD IS NOT THE CURE for sure, you may have made it worst and not fixable without replacing the master cylinder.
     
  4. Apr 23, 2025 at 4:40 AM
    #4
    JET4

    JET4 Old Member

    Joined:
    Dec 20, 2018
    Member:
    #8147
    Messages:
    5,144
    Gender:
    Male
    Southeast, Va.
  5. Apr 23, 2025 at 6:13 AM
    #5
    morfdq

    morfdq New Member

    Joined:
    May 25, 2022
    Member:
    #27196
    Messages:
    1,021
    Gender:
    Male
    First Name:
    Derek
    Vehicle:
    2022 SR5 Premium
    TRD Wheels, exhaust, Eibach, Cali Raised Skid Plate, Diode Dynamics fog, Sherpa Crestone rack.
    Amen to that. Replace the module before a serious accident
     
    leftyfire[QUOTED] likes this.
  6. Apr 28, 2025 at 10:28 AM
    #6
    3JOH22A

    3JOH22A トヨタ純正男娼

    Joined:
    Dec 31, 2022
    Member:
    #30349
    Messages:
    2,869
    Gender:
    Male
    District 6ix
    Vehicle:
    5G 4Runner, 3G Tacoma on 35"s
    Post a picture pinpointing exactly where on the module it's leaking from.

    JB Weld apparently softens in contact with brake fluid, so it wouldn't have held up.
     

Products Discussed in

To Top