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Brake goes rock solid. Scared as fuck

Discussion in '3rd Gen 4Runners (1996-2002)' started by ceven, Apr 11, 2021.

  1. Apr 11, 2021 at 7:53 AM
    #1
    ceven

    #1
    ceven [OP] 7

    Joined:
    Feb 7, 2021
    Member:
    #19617
    Messages:
    31
    Gender:
    Male
    First Name:
    Caine
    Waco, Texas
    Vehicle:
    1998 Black 4Runner SR5 2WD Auto
    1 Skar VD-10
    My brakes are usually pretty soft and touchy

    Well.. Recently I have started having an issue where my brake just gets stiff as fuck.
    When putting my foot on the brake at first it seems natural, but as soon as I give it some brake then it seems like it pushes back and gets hard, almost like I put some Oobleck in my brakes. When it slows down to a certain point it feels normal, but I have a mini-heart attack each time my brakes do this. Would love you guys knowledge. Thank you for you guys help up to this point. You guys dont even know what I would do without you!
     
    ceven, Apr 11, 2021
    #1
  2. Apr 11, 2021 at 9:18 AM
    #2
    Moon Landing

    #2
    Moon Landing AFFTC 1967/68 Eddies Air Patch

    Joined:
    Feb 4, 2021
    Member:
    #19563
    Messages:
    2,170
    Gender:
    Male
    First Name:
    Jer
    La Quinta, Ca. AKA "The Skillet"
    Vehicle:
    Moon Rock 4Runner
    Nam 68/69
    Start here. Check your vacumn lines to the brake booster and in general for(cracks, cuts, loose fitting, etc.) - or it could be the booster itself.
     
    Moon Landing, Apr 11, 2021
    #2
  3. Apr 11, 2021 at 10:48 AM
    #3
    Ahdofu

    #3
    Ahdofu New Member

    Joined:
    Dec 14, 2020
    Member:
    #18506
    Messages:
    310
    Gender:
    Male
    First Name:
    Matt
    Vehicle:
    1997 4Runner SR5, V6, Auto, 4WD
    My first action is always to attach an OBD tool and check on any codes that may be in memory
     
    Ahdofu, Apr 11, 2021
    #3
    Moon Landing likes this.
  4. Apr 12, 2021 at 7:09 AM
    #4
    PIG20

    #4
    PIG20 New Member

    Joined:
    Apr 9, 2021
    Member:
    #20825
    Messages:
    12
    Gender:
    Male
    Sounds like a typical brake booster issue. That is where I would look first.
     
    PIG20, Apr 12, 2021
    #4
    ceven[OP] likes this.
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