87 iroc disc brakes. resolved front brake problem, now have rear brake problem. previous owner improperly compressed rear caliper. i went and bought a caliper and put in on with new pads. started it up and pumped the brakes, piston never came out. i pumped it some more ( pumped the hell out of it) still didnt move. then i loosened the bleeder valve and no fluid cam out. i thought to my self "yup need a new hose,,,,but i was wrong. i loosened the brake hose and fluid went everywhere. so i guess my autozone caliper is junk.??????? or am i just dumb (not my first brake job) but starting to feel like it is.