If you have to ask, don't do it yourself. Have it replaced professionally.
Not knowing the application, most brake cylinders are a bolt in so, jack up and safely support rear of vehicle. Remove wheel, drum, brake shoes and hardware from backing plate. Do one side at a time so you will have the other side for reference. Disconnect brake line from wheel cylinder. Remove two small bolts from back side of backing plate that hold wheel cylinder in place. Remove wheel cylinder. Install in reverse order. Bleed brake system. To ease the bleeding procedure don't allow master cylinder reservoir to drain empty, keep it full during the brake cylinder replacement process.
Master cylinder or drum brake (hydraulic slave) wheel cylinder or disc brake caliper cylinder? drum brake shoes rear
It can cost between $10 and $50 to replace the rear brake wheel cylinder on this car. The price varies based on store and part brand.
If it is a drum brake system, then you will have to remove the wheel ,drum, brake shoes, and hydraulic brake line , then remove and replace the cylinder with a new one re-assemble and bleed the hydraulic brake system
it is usually the rear brake cylinder that's leaking and needs to be replace on that side.
What cylinder? Master (brake) cylinder? Rear Brake cylinder? Lock cylinder?
The brake caliber is sticking if it has rear disc brakes. The rear wheel cylinder is sticking if it has rear drum brakes. Replace both rear units and then drain all the old brake fluid out of the system and replace it with fresh fluid. Bleed the brake system.
I have a 01 Volvo and I had the same problem trying to compress the rear brake cyinder. Turns out that a car that has 4 wheel disc brakes, the cylinder screws in. You have to buy a universal tool from the auto parts store and it will go in enough to replace the brake pads..
There's only two things it could be: the brake cylinder or the hose. It's probably the brake cylinder, and those are easy to replace: jack up the car and put it on a jackstand, remove the wheel, then the brake drum followed by the shoes. Remove and replace the brake cylinder, reassemble the brake, bleed the system (you should only have to bleed the passenger front and driver rear since they're completely separate from the driver front and passenger rear due to the "dual diagonal" brake system cars have) and put the wheel back on.
Brake wheel cylinder or axle sealBrake wheel cylinder or axle seal
Should junction over the rear axle and connect sto the wheel cylinder - after replacement line will have to be bled
There are 2 rubber seals on each end of the wheel cylinders and there leaking. REPLACE THE WHEEL CYLINDERS.
remove the rear brakes, then remove the brake line to cylinder. remove the bolt holding cylinder on. then pull out wheel cylinder. to install cylinder, position it in place, put bolt back in cylinder to hold it. hook back up the brake line then put the brake shoes back on. when done bleed the system if need be.