Brian.B

i just replaced my mastercylinder and booster but im still having the same troubles,,while your driving and not touching the brakes for a minute or so then you go hit the brake it drops fast and almost locks up,,its very hard to drive in traffic its like im brake checking everyone,,,i found the back brakes had busted wheel cylinder so ive got them plugged for now waiting for parts,,,but if you bleed the front brakes every day it has perfect brakes,,fluid is leaking somewhere it leaks around the cap just like the old setup did and everytime i bleed the front brakes the drivers side has air in it,,the resevoir to the front brakes goes empty in about a week of driving ,,but i cant find anwhere else its leaking from,,,this is really starting to drive me crazy. any help would be appreciated,,thanks guys...

cj360trider

does the truck have rear abs or is it too old?

Brian.B

it has rear abs its a 91.5,,,

cj360trider

its not leaking around the abs valve anywhere is it? i know some fords of that er have brake pedal issues due to the "RABS" valve