Removal & Installation
Except 2005 Grand Prix RPO Z7U
- Before servicing the vehicle, refer to the Precautions Section.
- Siphon 2 / 3 of the brake fluid out of the master cylinder.
- Remove the tire and wheel assembly.
- Install 2 lug nuts to secure the rotor in place when the caliper is removed.
- Remove bolt and washer attaching cable support bracket to caliper body assembly. It is not necessary to disconnect the parking brake lever or disconnect the brake hose.
- Remove the caliper retaining bolt.
- Pivot the caliper body assembly up from the rotor and remove from the bracket. Do not completely remove the caliper assembly body.
- Remove the outboard and inboard shoe and linings from the caliper support assembly.
- Remove 2 brake lining clips from the caliper support.
- Using a suitable type spanner tool turn the piston in to bottom the piston fully into the caliper bore. Once the caliper is fully seated make sure the cutouts in the piston are at the 6 and 12 o'clock positions.
- After bottoming the piston into the caliper bore, lift the inner edge of boot next to the piston assembly and press out any trapped air.
- Install 2 pad clips in the caliper support.
- Lubricate the inner pad where it contacts the piston and mounting surfaces.
- Install outboard and inboard shoe and linings in caliper support. Position the wear sensors downward at the leading edge of the rotor during forward wheel rotation.
- Hold the metal shoe edge against the spring end of clips in the caliper support. Push brake pad in towards the hub, bending spring ends slightly and engage shoe notches with support abutments.
Pivot the caliper body assembly down over the brake pad.
NOTEAfter the caliper body assembly is in position, recheck installation of the brake pad clips. If necessary, use a small prying tool to reseat or center the pad clip on the support abutments.
- Install the bolts.
- Install the cable support bracket with the cable attached and bolt washer. Torque bolt to 32 ft. lbs. (43 Nm).
- Remove the 2 lug nuts securing the rotor.
- Install the tire and wheel assembly and tighten to specification.
- Pump the brake pedal several times to seat the pads against the rotor.
- Check the brake fluid level and top off as necessary.
- Adjust parking brake as necessary.
- Road test the vehicle for proper brake performance.