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were are my breaks ??????

971 Views 8 Replies 4 Participants Last post by  mopar-man 3000
well i notice while driving to work that my breaks went out the door so i checked the master and the rear resivor was bone dry so i looked around and no leaks that i could see but a liitle at the rear wheel but not a big leak so i fixed that problem
bleed the whole system master on down and still no breaks now the pedal is weid it's mush untill almost down and then it gets real hard and the break light in the dash turn on pumping the breaks has no effect
it almost seems like the back break are not getting enough fulid no the only thing on my break system that is not new is the proporiton valve thats it can this go bad ??? they dont sell them at the auto store because they like never go out is what im told also i have a 70's style breake system with drums all around also would a porp. valve from and 80's truck with disk front work ?
thank in advanced
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My suggestion is top off the master cylinder, leave the caps for the master cylinder off, open the bleed valves on one axle at a time, let the system do a gravity feed and force the trapped air out of the lines and wheel cylinders. This can be sped up if you have a Mighty Vac tool.
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