Removal Procedure
Caution: Refer to Brake Dust Caution in the Preface section.
- Inspect the fluid level in the brake master cylinder reservoir.
- If the brake fluid level is midway between the maximum-full point and the minimum allowable level, then no brake fluid needs to be removed from the reservoir before proceeding. If the brake fluid level is higher than midway between the maximum-full
point and the minimum allowable level, then remove brake fluid to the midway point before proceeding.
- Raise and suitably support the vehicle. Refer to
Lifting and Jacking the Vehicle
.
- Remove the tire and the wheel assembly. Refer to
Tire and Wheel Removal and Installation
.
- Hand tighten 2 wheel lug nuts in order to retain the rotor to the hub.
- Compress the front caliper piston.
6.1. | Install a large C-clamp (2) over the top of the caliper housing (1) and against the back of the outboard pad. |
6.2. | Slowly tighten the C-clamp (2) until the piston pushes into the caliper bore enough to slide the caliper (1) off the rotor. |
6.3. | Remove the C-clamp from the caliper. |
- Remove the lower caliper bolt (1).
Notice: Use care to avoid damaging pin boot when rotating caliper.
- In order to access the pads, rotate the caliper upward and suitably support it.
- Remove the pads (5) from the caliper bracket (3).
- Remove the 2 retainer slides (4) from the caliper bracket (3).
- Inspect the following parts for cuts, tears, or deterioration. Replace any damaged parts:
- Inspect the caliper bolts (1) for corrosion or damage. If corrosion is found, use new caliper bolts when installing the caliper.
Installation Procedure
- Using a C-clamp, bottom the piston into the caliper bore. Use an old brake pad or wooden block across the face of the piston. Do not damage the piston or the caliper boot.
- Install the 2 retainers to the caliper bracket.
Important: The wear sensor is on the outside pad. The sensor is positioned at the leading or upward edge of the pad during forward wheel rotation.
- Install the pads (5) to the caliper anchor bracket (3).
Notice: Use care to avoid damaging pin boot when rotating caliper.
- Remove the support and reposition the caliper (2) back down over the front pads.
- Lubricate the pin bolt and the inner diameter of the bolt boot with GM P/N 18047666, or equivalent. Do not lubricate the threads of the pin bolt.
Notice: Refer to Fastener Notice in the Preface section.
- Install the lower caliper bolt.
Tighten
Tighten the caliper bolts to 95 N·m (70 lb ft).
- Remove the 2 wheel lug nuts retaining the rotor to the hub.
- Install the tire and the wheel assembly. Refer to
Tire and Wheel Removal and Installation
.
- Lower the vehicle.
- With the engine OFF, gradually apply the brake pedal to approximately 2/3 of its travel distance.
- Slowly release the brake pedal.
- Wait 15 seconds, then repeat steps 10 and 11 until a firm brake pedal is obtained. This will properly seat the brake caliper pistons and brake pads.
- Fill the brake master cylinder reservoir to the proper level. Refer to
Master Cylinder Reservoir Filling
.
- Burnish the pads and rotors. Refer to
Brake Pad and Rotor Burnishing
.