Can't Stop- No Brakes
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Senior User
Joined: Oct 2010
Posts: 277
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From: Oshkosh, Ne
Can't Stop- No Brakes
ok i have changed out my front driver side caliper that had a broken bleeder valve and have installed a new one and have bled the brakes twice very well (i think) and still i have to pump the pedal to stop. so i replaced the booster and still i have to pump to stop. the master cylinder is near new and in good shape. i have looked over my entire brake line system and no where can i find any sign of a crack, (looking for fluid on the frame or around the lines) and i have bled the brakes again and yet i still have to pump them to stop. what am i doing wrong or what am i missing. and yes when i bleed them start at the passenger side rear and then go to DS rear, the PS front then DS front so that i do it right, but all i get is fluid from them, no air at all. what else could it be? 
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Joined: Oct 2007
Posts: 1,069
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i had the same problem with my bronco replaced the master but forgot to bench bleed it 1st you may have air in it unhook the lines on the unit,put a hose from the fitting to the inside full of fluid pump till it is clear fluid rehook your lines and "gravity bleed the system" the master may be faulty also as i have seen more than one rebuilt units that do not work the saying near new scares me as an old mechanic freind of mine told me once " if you think you got trouble when you cant get them to run wait till you cant get them stopped! if theres any dout about the master change it out as i thing that is the problem
