Brake problems

[jrich068]

Hey guys i own a 1987 300zx and i'm having trouble with the brakes. I've done the pads, rotors, calipers, and master brake cylinder, but the problem is still there. The brakes start sticking after i drive it for a while but i recently noticed that if i detatch the vacuum hose from the intake to the brake booster it releases the pressure and the car rolls fine again. do i need new hoses or a new booster? i already changed the check valve.Thanks

Jake

[Two Fowty]

try blowing out all your lines, bleeding your brakes, and testing it again, if the problem persists, it might be your brake booster.

even though you replaced the brake cylinder, the old one could have leaked into the brake booster and started to eat away at the diaphragm in the booster.

just a thought. i recently went through my whole brake system and this happened to me.