Senin, 16 Mei 2011

How to Replace Toyota Calipers

How to Replace Toyota Calipers

How to Replace Toyota Calipersthumbnail
Replace Toyota Calipers

Toyota manufactures its brake calipers to last for the life of the car, but occasionally they go bad. If you see signs of brake fluid leaking from around the caliper pistons, you'll know it's time to replace the calipers. If you are comfortable replacing brake pads and bleeding brakes, this job will be simple for you since it only requires the removal of two extra bolts. But never take brake repair too lightly since this is possibly the most important system on your Toyota.

Difficulty:
Moderate

Instructions

things you'll need:

  • Lug wrench
  • Car jack
  • Oil pan
  • Shop rags
  • Wrenches
  • Disc brake cleaner
  • Brake calipers
  • Brake pads
  • Brake fluid
  • 2-foot long Rubber hose
  • Bottle
  1. Removing the Old Caliper

    • 1

      Set the parking brake and make sure your Toyota is in "Park" (or first gear if it is a manual transmission. Loosen the lug nuts ¼ turn on one wheel. Jack up the car. Take the lug nuts off. Remove the wheel.

    • 2

      Place an oil pan or rag under the brake caliper. Loosen the brake line where it attaches to the rear of the caliper, using a wrench. Allow brake fluid to drip into the pan or onto the rag, not onto the brakes.

    • 3

      Remove the brake line and cover it with a plastic bag to keep dirt from contaminating it. Hang the brake line to any engine part, using a piece of wire to keep all the brake fluid from dripping out.

    • 4

      Locate the caliper's two mounting bolts, above and below the caliper. Loosen these bolts with a wrench. Remove the mounting bolts with one hand while supporting the caliper with your other. Slide the caliper off of the brake disc. Clean the disc with disc brake cleaner and a rag if any grease or brake fluid has gotten on it.

    Installing the New Caliper

    • 1

      Grasp the new caliper with the fingers of each hand on the caliper pistons. Gently push the pistons open (apart from each other) as far as they will go.

    • 2

      Slide the caliper over the brake disc, oriented in the same way as the old caliper. Slide the mounting bolts into position. Tighten the mounting bolts firmly with a wrench.

    • 3

      Remove the wire and plastic bag from the brake line. Attach the threaded end of the brake line to the back of the caliper, the same way it came off the old caliper. Tighten it with a wrench. Remove the oil pan and rags.

    Bleeding the Brakes

    • 1

      Add new brake fluid to the brake fluid reservoir in the engine compartment. Attach one end of a clear plastic tube to the bleeder valve on the back side of the caliper where the brake line attaches to the caliper. Place the other end of the plastic tube inside the neck of a clean bottle on the ground. Have an assistant sit in the driver's seat of the car.

    • 2

      Open the bleeder valve with a wrench by turning it ¼ turn counterclockwise. Have the assistant press the brake pedal down. Watch as air bubbles or brake fluid enters the tube from the bleeder valve. Close the bleeder valve by turning it all the way, clockwise, with a wrench. Have the assistant lift his foot off the brake pedal. Repeat this step until only brake fluid enters the plastic tube from the bleeder valve with no air bubbles.

    • 3

      Verify that the bleeder valve is securely tightened by turning it clockwise. Remove the plastic tube. Discard the bottle and used brake fluid. Check the brake fluid reservoir and add brake fluid to the "Full" line if needed. Replace the wheel and lower the car.

Tips & Warnings

  • If your brake calipers are getting old, replace the calipers on both sides for optimum brake performance.

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