rear brake problems

[ty91sho]

have any of you had a problem with the one rear brake locking up on you, i got a caliper rebuild kit for both of the rear calipers and the calipers are in good working order now, i also eliminated the rear proportioning valve by puling out the valves and pluging them,so it is full brake to rear all the time, so that is not it, its not the e-brake cable because i disconected it, its not the caliper because i rebuilt it, the only thing left is the master cylinder or the accumulator pump,
so i was hopeing that one of you guys might know what i should do next, and my abs light is not on and it is in working order,
does anyone know anything about the accumulator pumps?????
help me please
this is on my 91 sho plus

 

[CerberuS]

rear flex line (rubber) collapsed (if not changed) , common issue. Rock auto has them.

 

[Calypso]

Yeah, it's the rubber hose. Pretty common on these cars. You should also be able to pick them up at your local auto parts store. That's where I got mine. Might save you some time...

 

[ty91sho]

hey thanks guys, before you said that i would have never thought that, but it fixed it!!!!!!!!, i wish i would have known that before i put all of that new stuff on it, well at least there shouldnt be any more rear brake problems cuz it is all new, thanks! you guys are smart, i never heard of the line breaking down in the inside, but now i will never forget it, have fun out there in the coolest four door on the road

 

[AREA 91]

With the rear brakes on these cars, you gotta keep up with the slider pins and hoses. Been ther, done that 4-5 times.