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BRAKES FAILED!!

Discussion in '3rd Gen. Tacomas (2016-2023)' started by Braveheart44, Jun 9, 2024.

  1. Jun 10, 2024 at 5:17 PM
    #61
    Spacecoast

    Spacecoast Well-Known Member

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    Glad I don't have that.
     
  2. Jun 10, 2024 at 5:57 PM
    #62
    ShimStack

    ShimStack Well-Known Member

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    It's hydraulic assist with an electric pump. It's on all OR's and Pros whether they have crawl (autos) or not.
     
  3. Jun 10, 2024 at 6:02 PM
    #63
    ShimStack

    ShimStack Well-Known Member

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    Stiff pedal is not a sign of losing brakes but is a sign of lost assist. If this is the case cramming the brakes with *all* your might is the approach. We have all become too accustomed to applying weak levels of effort with the modern day effort-amplifying boost systems for both braking and steering.
     
  4. Jun 11, 2024 at 1:10 AM
    #64
    Cement_wheels

    Cement_wheels Well-Known Member

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    I knew something was up the first time I stepped on the brakes when my Taco was in the garage. All kinds of whirring electrical sounds. The brakes on mine have an inconsistent feeling sometimes but never in a dangerous way.
     
  5. Jun 11, 2024 at 6:47 AM
    #65
    ShimStack

    ShimStack Well-Known Member

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    That's the pump. It keeps the accumulator charged and typically you get a couple brake presses before it runs to recharge. Also, the rear brakes are completely brake by wire unless there's failure in the system then it's manual.
     
  6. Jun 11, 2024 at 6:50 AM
    #66
    Delta09

    Delta09 This Space Left Blank

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    What? o_O

    Literally only hydraulic lines going back there. Only wiring is ABS sensors.
     
  7. Jun 11, 2024 at 6:53 AM
    #67
    2024OffRoad

    2024OffRoad Member

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    Sounds like your modifications effed something up. No bueno
     
  8. Jun 11, 2024 at 8:02 AM
    #68
    ShimStack

    ShimStack Well-Known Member

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    Brake by wire means no mechanical link directly to the brakes from your foot, not that it's not hydraulically actuated. The pressure applied to the rear brakes comes from a circuit that is pressurized by a pump and the amount of braking applied is determined by an ecu. If there's a failure in the system it may then allow master cylinder pressure generated directly by your foot to actuate the rear brakes.

    You will learn this when you try and bleed the rear brakes.
     
  9. Jun 11, 2024 at 8:57 AM
    #69
    auskip07

    auskip07 Well-Known Member

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    i stand corrected.
     
  10. Jun 11, 2024 at 9:27 AM
    #70
    nds0000

    nds0000 Well-Known Member

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    Glad you are ok!

    Were you on dynamic cruise control and did the system brake automatically already? Because if you then try to hit the brakes while the dynamic cc is operating them, it feels like your wood log behind the pedal. Release the brake and press again and it is normal. Not very nice feature by Toyota, scared the living crap outta me the first time it happened.
     
  11. Jun 11, 2024 at 9:31 AM
    #71
    Vlady

    Vlady Well-Known Member

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    OP has 2017
     
    auskip07 likes this.

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