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Master Cylinder going out?? Pedal gets softer while stopped.

Discussion in '2nd Gen. Tacomas (2005-2015)' started by Nolazach, Sep 23, 2011.

  1. Sep 23, 2011 at 9:54 PM
    #1
    Nolazach

    Nolazach [OP] Well-Known Member

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    An ARE camper shell, a 1000w power inverter.
    Okay, I've had a similar problem before in a VW. But in that one the brakes just almost failed, and were really soft and slow to engage.

    What I have on the Tacoma, is the pedal gets softer while I'm sitting at a light or just stopped. At first I thought maybe it was normal, but It seems more frequent. No leaks at any wheel, so I can rule that out. With brakes if the system is closed then the problem is usually the cylinder.

    Also I noticed when the pedal does this, it seems like the torque converter engages or disengages giving the truck a small surge.

    Wondering if any one else had master cylinder issues or a pedal that gets soft when stopped, but is not spongy under normal use.


    [​IMG]
     
  2. Sep 23, 2011 at 9:59 PM
    #2
    youradhere

    youradhere Well-Known Member

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    Similar issue for me in my 08 DCSB Prerunner... the sponginess is very gradual, nothing like when my old integra's master cylinder blew out and I lost my brakes. This happens infrequently and I also get that lurch in the truck.

    Don't have any answers for you, but at least you know you aren't alone!
     
  3. Sep 23, 2011 at 10:00 PM
    #3
    S.B.

    S.B. Well-Known Member

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    SD, CA Now in Colorado Springs, CO
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    SAW 2.0s, Wheeler's 3-leaf AAL, On Board Air, 255/85/16 Cooper Discover S/T, CBI Sliders, Built right UCAs, 6" Harbor Freight Lights (converted to HIDs), KC Slim Lights.
    The lurch at a stop is your ac compressor kicking on.
     
  4. Sep 24, 2011 at 8:08 AM
    #4
    Nolazach

    Nolazach [OP] Well-Known Member

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    An ARE camper shell, a 1000w power inverter.
    damn its crazy, every weekend I think I have some major problem, then I come on here and find everything is normal.

    I'm going to price master cylinders, probably not a bad idea to change them. I was going to rotate my tires anyway, so I'll do a brake inspection while I'm at it. Damn that is a big surge to be "normal"
     
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