Will Flushing the Brake Fluid Fix a Sticking Caliper

Automotive repairs can be a costly and time-consuming process, and sometimes small problems can escalate into large ones if not addressed promptly. In this article, we’ll take a look at the common causes of brake fluid sticking and how to fix them.

What is a Caliper?

A caliper is a type of brake mechanism that helps to stop the car. It is a metal or plastic wheel that slides on a rail in the brake shoe. The rail is what the caliper rests on. The caliper has two pistons that push and pull on the brake pads to stop the car.

How a Caliper Works

A caliper is a device that helps to stop the wheels from rotating. When the brakes are applied, the caliper squeezes the brake pads against the rotor, which causes friction and stops the vehicle. Unfortunately, sometimes calipers can become stuck in their tracks, preventing the brakes from working properly.

If the caliper is stuck in its tracks, it might be necessary to flush the brake fluid to get it moving again. Flushing the brake fluid will free up any debris that may be blocking the caliper’s movement and restore braking power.

What Causes a Caliper to Stick?

One of the most common causes of a caliper sticking is a build-up of brake fluid on the caliper. Brake fluid absorbs moisture from the air, and over time this can cause the caliper to stick. In some cases, the caliper may even become so loose that it can no longer move. If this is the case, you’ll need to replace the caliper.

How to Fix a Sticking Caliper

If your car’s brakes are sticking, there’s a good chance that the fluid in the brake system is old and dried out. To fix the problem, you’ll need to flush the brake fluid and replace the fluid if necessary. Follow these steps to do it:

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1. Remove the wheel and tire from the car. This will make it easier to work on the brakes.

2. Remove the caliper by loosening the bolts that hold it on and pulling it off of the rotor. Be sure to wear gloves and eye protection!
3. Wash the caliper and rotor in cool water with a mild detergent. Be sure to rinse everything well.
4. In a large pot or container, add enough cool water to cover the caliper assembly. Add 1 cup of brake fluid (new or re-filed) and stir well with a big spoon or rubbermaid container until all of the fluid is dissolved. If using new fluid, add 2 cups of water to make up for any lost water while filling the reservoir (this will depend on your car’s capacity).


There are a few things that you can do if your brake calipers are sticking, but one of the most common is flushing the brake fluid. This procedure will help to free up any built-up material that may be causing the calipers to stick, and it should be done every time you change your brakes. Make sure to follow all of the steps in the Flush Brake Fluid guide carefully to avoid any potential problems down the road.

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