Disc Brake Trouble?

Question

Any suggestions, tips or advice on how to fix a stuck ( I hope its not siezed ) disc brake piston?

Answer 1

Unless you've got some high-end or exotic or rare car, a whole new caliper is like $20. I replace mine about as often as I replace pads now since they are so cheap. I certainly replace my rotors since they are like $15 each.

The only thing between you and a painful, awful, bloody death is those brakes.... Worse yet, you might not be the one who dies!!

Answer 2

Those pistons don't jam for no reason. The piston and the cylinder can corrode or pit, and they wear out. In the process of wearing out, the cylinder that the piston rides in develops a ridge on its surface, which can cause the piston to get stuck. Also, the piston can get a bit canted in the cylinder, and jam that way. Either way, it's not good. That cylinder will either not release or not clamp down on the rotor. You may be able to force the piston out with air pressure, a vise, or some other neanderthal technique, but it will most likely get stuck again. Don't play with the brakes. Get a replacement caliper and new pads, and get the rotors resurfaced. Don't buy junkyard brake components. Cars are in junkyards for a reason. Trusting your (and my) life to a three dollar boneyard caliper will put us both on the fast track to face time with God. Since replacing the caliper requires disconnecting the brake hose, you must bleed the brake system. If you are unsure about or unfamiliar with any phase of this kind of work, spend the money and get it done. I really don't want you behind me when your brakes fail.

Answer 3

Yep! Remove the assembly from the vehicle. Get a piece of wood (A six inch long one by four should do) Place the wood in the slot where the brake pads were. Find a compressor with a lot of pressure. Get a blower tip on the end of the hose. place the blower tip in the port where the brake fluid enters. Use a rag to help seal the gap and retain air pressure. You will blow the piston out of the cylinder when you shoot pressurized air into the hole. Be very careful that your hand isn't in front of the piston as it will come out with enough force to make a mess of your fingers.

Answer 4

You'll have to remove the tire and disassemble the your brake caliper. Once you have it off you will have to remove the piston from the cylinder. If it is really stuck you will have to push it out by using an air compressor and forcing air into it thru the brake line inlet. Once you have it out you can clean the cylinder and replace the piston then reassembling the caliper using new brake pads. Don't forget to apply disc break quiet to the back of the brake pads. And once you have it all assembled you replace the tire. Your done.

Answer 5

well are you sure its one you have to press in cause some of them yo have to turn in and the way yo can tell is look at the piston and if it is a solid piston with 2 groves in it then most likely you have to turn it it if its not then one thing you can try is to pinch off the rubbe brae line and open th bleeder and see if you can get the piston to move in

Answer 6

If it is stuck get a air nossel and force it out with air pressure. If you are shure it is stuck,why not just replace it. It will be cheeper in the log run. Or get one from a salvage yard.

Answer 7

i own a repair shop,and you can maybe free it up by pressing it in lightly and this might help it to free it up,and if not you can take the caliper off and put it in a vise,you might can work with it,and get it to free up,,other wise it may have to be replaced,,good luck,i hope this help,s.,,have a good x-mas.

Answer 8

Ok, If you are having a frozen or seized problem, get another rotor, Even If its re-furbished. Your life Is worth It.

Answer 9

go to autozone and buy a rebuilt caliper and save some time and frustration.

Answer 10

i would suggest taking it to a car shop to get looked at....at least they can tell you what's wrong with it, because it may be more than just that one thing....