You can rebuild the caliper or replace it with a rebuilt one from a parts store(my suggestion).
If it has been a while since you completely flushed you brake fluid that might be part of the problem. Try taking a C-clamp and squeezing your caliper piston in slowly to push the fluid back up into the reservior. If it is stuck, then you may have a clog in the rubber brake line. Remove it from the caliper and now try squeezing the piston back in with the C-clamp. It may unclog that way. You may have to bleed the brake line with one good pump and make sure fluid squirts out the brake line. Now you know that both are free. If you find that you cannot bleed fluid out of the line, take it completely off and run a coat hanger through it. It it is totally clean and no clog, then it is farther up in your system. Post that problem later if that is what you found.
My guess is you will find either the caliper sticking(clog or corrosion buildup) or the rubber brake line has a clog.
Fix it before you drive the car again.
Something to think about. My buddy had a SUV that he could bleed the brakes normally throught the bleeder, but could not squeeze the piston back into the caliper. He replaced the caliper and when he applied the brakes the piston pushed out and locked. It could not be squeezed back in. He removed the brake line and found it was clogged massively. There was enough fluid getting by when he wanted to bleed or apply brakes, but the clog would close off the line when he tried to push the fluid backwards back into the reservior.
I know it is a long post, but thought I would explain throughly in case brakes were a bit of a mystery.
97 RS(PTE SC-61, Built Long Block, Electromotive Tec 3)It's Here!
