Using a micrometer, measure the disc thickness at eight positions, approximately 45 degrees apart and 0.39 in. (10mm) in from the outer edge of the disc. The minimum thickness is 0.882 in. (22.4mm) for front rotors or 0.331 in. (8.4mm), with a maximum thickness variation of 0.0006 in. (0.015mm).
If the disc is beyond limits for thickness, remove it and install a new one. If the thickness variation exceeds the specifications, replace the disc or turn rotor with on the car type brake lathe.
Removal & Installation
- Before servicing the vehicle, refer to the precautions in the beginning of this section.
- Remove approximately 1 / 3 of the brake fluid from the master cylinder.
- Remove the wheels.
- On the front of All Wheel Drive (AWD) vehicles, remove the pad retaining pins and pull the pads out of the caliper body.
- On others, remove the lock pin and swing the caliper upward and support it with a wire. Remove the pads and retainers.
- Compress the pistons back into the caliper bore.
- Install the pads and retainers.
- On AWD front disc brakes, apply a small amount of multi-purpose grease to the inner pad shims.
- Install the caliper to the caliper support.
- Install the wheels and torque to 87-101 ft. lbs. (120-140 Nm).
- Raise and safely support the vehicle.
- Remove the front wheel.
- Remove the caliper assembly. For additional information, see the following topic: -Brake Caliper, Removal & Installation-. You may leave the brake line connected and secure the caliper assembly with mechanic-s wire or equivalent. Do not hang the caliper assembly by the brake line.
- On some models the rotor is held to the hub by two small threaded screws. Remove the screws and pull off the rotor.
- Position the rotor on the hub and install the mounting screws.
- Install the caliper assembly.
- Install the front wheel and lower the vehicle. Tighten the lug nuts.
- Bleed the brake system if the brake line was disconnected and road test the vehicle.