Edmunds Answers

Answers

  • MrShift@Edmunds 11/25/08 1:06 pm PST

    1. Inspect the fluid level in the brake master cylinder reservoir.
    2. If the brake fluid level is midway between the maximum-full point and the minimum allowable level, no brake fluid needs to be removed from the reservoir before proceeding.
    3. If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, remove brake fluid to the midway point before proceeding.
    4. Raise the vehicle and suitably support. Refer to Vehicle Lifting.
    5. Mark the relationship of the wheel to the hub flange.
    6. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.

    Notice: When using a large C-clamp to compress a caliper piston into a caliper bore of a caliper equipped with an integral park brake mechanism, do not exceed more than 1 mm (0.039 inch) of piston travel. Exceeding this amount of piston travel will cause damage to the internal adjusting mechanism and/or the integral park brake mechanism.
    1. Using a large C clamp , compress the brake caliper piston into the brake caliper bore to gain enough clearance to allow the brake caliper to pivot off the brake caliper bracket . Compress the piston until resistance is felt, but no more than 1 mm (0.039 inch) of piston travel.
    2. Remove the C-clamp from the brake caliper.
    3. Remove the bottom brake caliper pin bolt.
    4. Remove the park brake cable clamp guide clip from the lower control arm.
    5. Notice: Support the brake caliper with heavy mechanic's wire, or equivalent, whenever it is separated from it's mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak.
    6. Pivot the brake caliper body upward and secure out of the way with heavy mechanic's wire. Do NOT disconnect the hydraulic brake flexible hose from the caliper.
    7. Remove the inboard and outboard pads from the brake caliper bracket
    8. Remove and inspect the brake pad retainers

    Installation Procedure

    • Inspect the brake caliper bolt suspension boots for cuts, tears, or deterioration. If damaged, replace the pin boots. Refer to Disc Brake Hardware Replacement - Rear.
    • Inspect the brake caliper pin bolts for damage or corrosion. Replace if damaged or corroded. Do not attempt to clean away corrosion. Corrosion is typically caused by damaged pin boots. Refer to Disc Brake Hardware Replacement - Rear.
    • Inspect the piston boot for deterioration. Replace If damaged. Refer to Brake Caliper Overhaul -Rear.

    1. Retract the brake caliper piston into the brake caliper bore. Use a spanner type wrench and turn the piston clockwise until it bottoms out fully in the brake caliper.
    2. Align the cutouts in the brake caliper piston to the alignment pins on the back of the brake pads.
    3. Install the brake pad retainers into the brake caliper bracket .
    4. Install the inboard and outboard brake pads into the brake caliper bracket.
    5. Pivot the brake caliper down over the brake pads and into the brake caliper bracket
    6. Insert the lower brake caliper pin bolt.


    * Tighten the brake caliper pin bolt to 27 Nm (20 ft. lbs.) .
    1. Install the park brake cable guide clip to the lower control arm.


    * Tighten the park brake cable guide bolt to 24 Nm (18 ft. lbs.) .
    1. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation.
    2. Lower the vehicle. Refer to Vehicle Lifting.
    3. With the engine OFF, gradually apply the brake pedal to approximately 2/3 of its travel distance.
    4. Slowly release the brake pedal.
    5. Wait 15 seconds, then repeat steps 10-1 1 until a firm brake pedal apply is obtained. This will properly seat the brake caliper pistons and brake pads.
    6. Fill the brake master cylinder reservoir to the proper level. Refer to Master Cylinder Reservoir Filling in Hydraulic Brakes.
    7. Burnish the pads and rotors.


  • tinkerer2 05/21/11 10:59 am PST

    mr_shiftright gave a very good answer. I just wanted to add to it one thing. To open the rear caliper without the spanner wrench, you can use an open end wrench( approx 3/4") big enough to span the center of the piston and put it in perpendiclular to the piston face inside the cutouts on the face of the piston. Use it like a screw driver to turn the piston clockwise. This works very well to screw the piston into the caliper without any special tools. I used this technique last evening and it worked very well.

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