Q:

How do you fix a frozen brake caliper?

A:

Quick Answer

Solve most sticking brake caliper problems by replacing the existing caliper with a new one. The process requires removing the wheel and caliper, installing the new caliper, bleeding the brakes and reattaching the wheel. The process takes most of an afternoon.

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Full Answer

  1. Remove the wheel

    Loosen the lug nuts, and lift the car with a jack. Finish removing the tire to access the caliper.

  2. Remove the defective caliper

    Place a drain pan under the wheel to catch any dripping brake fluid before proceeding. Remove the bolt that connects the brake line to the caliper. Remove the bolts, rubber boots and sliders holding the caliper in place. Drain any remaining brake fluid from the caliper. Inspect all slides for signs of rust or damage as reuse of these parts saves money.

  3. Install the new caliper

    Compress the new caliper completely using the caliper tool. Install the caliper, and attach the brake line to the new assembly.

  4. Bleed the brakes

    Fill the brake fluid reservoir with new fluid. Have a helper press and hold the brake pedal while you open the bleeder valve. Close the valve, and ask the helper to release the brake. Continue the process until no bubbles appear in the fluid from the brake lines.

  5. Reattach the wheel

    Put the wheel back on the car, and tighten the lug nuts. Lower the jack, and torque the lug nuts to the manufacturer's specification.

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