Sounds like the caliper is frozen. Probably needs to be rebuilt or replaced. If you decide to rebuild the caliper yourself make sure the bleeder screw comes loose without breaking off before rebuilding it, otherwise you can't bleed the air out of it when you're done.
A rebuilt caliper from a parts store for an '84 caprice is real cheap anyway and it's easier and faster to just replace it.
There was no Caprice in 2004...
That depends on where it's leaking out; if it's at the master cylinder, you have a bad master cylinder, if it's at the wheel cylinder you have a bad wheel cylinder if it's at a caliper... well, you get the idea. If you know how to repair a master cylinder, wheel cylinder or caliper, you can often get by with a little savings but it's usually best to just trot down to your local auto parts retailer and get a new or rebuilt one.
Brake lines come out of the master cylinder and go to each wheel.
A quick take-up master cylinder
Master cylinder or drum brake (hydraulic slave) wheel cylinder or disc brake caliper cylinder? drum brake shoes rear
from the furthest caliper from the master cylinder. Start with that one and move closer.
master cylinder, caliper, wheel cylider and power streeing
If you are wanting to colaspe the piston so you can fit new pads in the caliper, first open the master cylinder, then use a "c" clamp or "c" clamp vise grips to slowly push the piston back enough to place the pads in and then fit caliper over your rotor.Keep in mind there may be a mess at the master cylinder.
You've either got a bad Brake hose or bad master cylinder. Both these things can cause a caliper to stick.
no you dont have to---BUT its adviseable
Fill master cylinder and open the bleeder valve on the caliper and let it drip while you have a coffee break. Re-tighten and do other side. re=fill master cylinder
Defective master cylinder? Frozen caliper? Parking brake cable frozen?