l/f brake stuck ?

[floydster]

hi all, new guy here. i just traded a junky 91 camaro for this 93 chevy 1500 shortbed. the driver's side front wheel is locking up and it woun't move very well. the p.o. said he thought it was the caliper. so i bought a reman cailper and replaced it, bleed the brakes, no differance. so i replaced the master cylinder ,blead it, no differance. so what could it be ,the porportioning valve ?

 

[454cid]

Did you change the brake hose? I've read that when they go bad, they often will collapse internally and act like a check valve, only allowing fluid to pass under pressure from the master cylinder. You can test for this, by opening the bleeder at the caliper when it's stuck... if that releases the caliper then you know the fluid is being trapped.

 

[floydster]

thanks, i'll try that in the morning

 

[someotherguy]

Replace the hoses on both sides. Inexpensive and if one is bad the other isn't far behind. They are the #1 suspect for the problem you're reporting.

Richard