How to Remove a Stuck Brake Piston – Jalopnik

Sometimes it’s the little car parts that we think about the least that can cause the biggest problems. Take spark plugs for example, because failure to remove stuck spark plugs can threaten the engine. Likewise, brake pistons are tucked away in calipers and often ignored – until they pose urgent problems. If you notice a burning smell, your car pulls to one side, and the brakes feel hard or spongy, you probably have a stuck brake piston, which doesn’t bode well for your ability to stop your car at will.

Brake pistons are essential parts of your car’s braking system. When they get stuck or stuck, they pose a safety risk to you and your vehicle – and probably to your wallet as well. They are located in brake calipers, and there is a fairly simple method you can use to ‘loosen’ a seized or stuck brake piston yourself. You probably already know the steps if you’ve tried to replace your car’s brakes all by yourself.

After removing a caliper from the rotor, place the caliper in the jaws of a C-clamp with the caliper piston facing up and fully visible. Make sure the caliper is held securely in the clamp, and then you can start pulling out the piston with additional tools. You can make an artificial bowl by inserting tools you have lying around to fill the open space in the piston. Be sure to include an Allen wrench in your range of utensils, which – once secured in the opening – can be turned to provide sufficient force to loosen the piston.

Caliper pistons aid in the braking process by pressing the brake pads onto the brake rotors, creating friction that slows the rotation of the rotor. Your car’s brake fluid provides the pressure that causes your brake pistons to move.

Unfortunately, wear or environmental factors can cause your brake pistons to seize or seize, limiting the proper functioning of your braking system. Rust and corrosion on the piston or in the caliper can prevent the piston from moving properly. Additionally, if the protective seals around the piston crack or your brake fluid becomes contaminated (which of course can happen over time), your brake piston may be more susceptible to seizing.

If you suspect that you have a seized or stuck brake piston, it is wise to resolve it immediately. Otherwise, you’ll have to deal with further brake damage, experience brake failure on the highway, or suffer the emotional and financial headaches that come with replacing your entire braking system.