mustangjoe87

ok i am having a serious problem. i did the sn-95 swap on my 87. 98 front 96 rear hardware wilwood proportioning valve (new) and a 95 master cylinder (new). the system is bleed well with no leaks (we put 2 quarts through it) and the pedal still goes straight to the floor when running and is spongy when it is not. i adjusted the push rod out 3 turns and it got a lil better but not much. i dont think the booster is bad and i dont think i have any vaccum leaks, i am at my wits end, please help.

89stanglx

Try another master cylinder, you could always take the other back.Did you use a hand bleader vacume pump on each wheel?

roundman

disconnect the lines from the master cylinder to the brake and get a free master cylinder bleeder kit from Auto Zone and bleed the air out of the master cylinder, then reconnect the lines and bleed each wheel again, starting with the right rear and working your way to the left front as the last one you bleed. this should cure your problem if the master cylinder ain't bad.

pipeliner

If you were bleeding before and were getting air and fluid at times you MS should be fine but I also posted in your other thread

mustangjoe87

so mike and i went into the shop this morn to work on my car and we inverted the calipers and bleed them. still went to the floor when running so since we both have to go back to school tomorrow we decided to pack it up and throw the wheels on. so while i was putting the lug nuts on mike says " hey, ill step on the brakes and hold the wheels." i was like **** you guy, so he does it any way and says wait wtf happened? iwas like huh? the brakes are hard????? so we put the wheels on dropped the car and they worked. the proportioning valve needs to be adjusted but it was raining alot so i did a couple of test damn they are a lil spoongy but the worked. plus i rebuilt the tracktion lock so now both wheels spin