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Brake problems

Discussion in 'Chevy Trucks' started by K8JWT, Mar 27, 2003.

  1. K8JWT

    K8JWT Junior Member
    Messages: 3

    I just re-did the brakes on my 1987 R-10 with manual brakes after the emergency brake cable stuck and burned up the back brakes.

    After new shoes,hardware,wheel cylinders out back as well as new pads up front I CAN NOT get any pedal pressure!

    Back brakes bleed OK with clean fluid coming out, HOWEVER when I do the front brakes on both sides all I get is white,milky brake fluid and the sound of a lot of air.

    Tried to bleed the drivers front and all I got was the above fluid for 3 fillings of the resivor of new fluid and with each bleeder opening I also got a lot of air bubbles spitting out.

    Could I have a bad master cylinder???

    Jacob Tennant
  2. K8JWT

    K8JWT Junior Member
    Messages: 3

    Additional Information

    When I push on the pedal I can hear a squishing sound like fluid sqirting from the MC resivoir.

    Also can see fluid jumping around in the rear part of the resivoir which I was told was the fluid pool for the front brakes.
  3. K8JWT

    K8JWT Junior Member
    Messages: 3

    Got it fixed! ! !

    It turned out to have been the proportioning valve needed to be recentered by pushing on the rubber-covered button on the end nearest the radiator.

    After that a simple gravity bleed followed by a good 4-wheel bleed and all is well and good again.