I have a 94 ram 1500 4X4 and I replaced the brake line from the master cylinder a few months back. There was a few rust holes throughout the line. That seemed to give me decent brakes until about a month ago and they started becoming squishy so I replaced the master cylinder with a remanufactured one. I did the whole bench test precedure and we bled the entire system of air. That really didn't do much but now they're almost to the floor. Its really bad when I go down a hill or around a bend. Its feels like there's no brake there at all. Do you know if there is a special way to bleed an ABS system that I have to do or could it maybe be a bad remanufactured master cylinder(invest in a new one instead?) My last thought is what if the ABS system is failing.?Really could use your advice. THX

 

um... may sound stupid...like super stupid... check your pads and rotor/drums latley? ironically they coulda have gone on you while troubleshootin the line itself... also make you sure you adjust your rear drums too... you can either hit the parking brake on and off a few times and it will automatically adjust the rear drums for ya or crawl underneath the rear axle and on each side... theres a large plate... on that plate theres 2 small ovals... the bottome oval .. take the little rubber plug off.. and peak in there with a light of some sort and youll see a little star weel...using a small flat tipped screw driver you can turn this weel till it clicks.. turn each wheel about 2 to 4 times .. then check the breaks..if they tighten up then your good... dont go too much youll lock the brakes up and itll suck b.c youll heat up and warp the breaks big time and need to replace... you can also turn that little star wheel over untill its really tight (meaning the shoes are all the way againts the drums) and then back it off like 10 to 15 turns... if you get a chiltons for a haynes..ittle explain in there how to do this exactly and highley recomended to look at!!!!!!!!!!!

 

Sounds like a bad master cylinder to me. Check the o-rings inside, one of them might be broke or something. Also check the powerbooster for something wrong. Like a messed up vacuum line or o-ring.

See if that does anything