- Remove two-thirds of the brake fluid from the master cylinder reservoirs.
- Discard in an approved container.
- Raise the vehicle and support.
- Remove the tire and wheel assembly.
- Depress the piston into the brake caliper housing bore to provide clearance between the brake pads and the brake rotor.
- Make sure one end of the C-clamp or equivalent rests on the inlet fitting bolt and the other end against the outboard brake pad.
- Remove the brake caliper guide pin bolts.
- Remove the brake caliper from the brake caliper mounting bracket and the brake rotor.
Support the caliper so that there is no weight on the brake hose.
- Remove the brake pads.
- Apply a thin coat of silicone grease (GM P/N 18010909 or equivalent) to the brake pad retainers/brake caliper bracket where the brake pads come in contact with the brake pad retainers/brake caliper bracket.
- Install new brake pads onto the brake caliper.
The outboard brake pad with insulator installed toward the brake caliper housing
The inboard brake pad with the wear sensor installed nearest the brake caliper piston.
The wear sensor must be in the trailing position during forward wheel rotation.
Replace brake pads in axle sets only.
- Install the brake caliper to the brake caliper mounting bracket and the brake rotor.
Caution: These fasteners MUST be replaced with new fasteners anytime they become loose or are removed. Failure to replace these fasteners after they become loose or are removed may cause loss of vehicle control and personal injury.
- Install the brake caliper guide pin bolts.
Tighten the brake caliper guide pin bolts to 31 N-m (23 lb ft).
- Install the tire and wheel assembly.
Tighten - the wheel nuts in sequence to 140 N-m (100 lb ft).
- Lower the vehicle.
Notice: When filling the master cylinder, use only Delco Supreme 11 (GM P/N 12377967) or equivalent DOT 3 brake fluid. Do not use a container which has been used for petroleum based fluids, or a container which is wet with water. Petroleum based fluids will cause swelling and distortion of rubber parts in the hydraulic brake system, and water will mix with brake fluid, lowering the boiling point. Keep all fluid containers capped to prevent contamination.
- Refill the master cylinder to the proper level with clean, fresh brake fluid.
- With the engine running, pump the brake pedal slowly and firmly to seat the brake pads.
- Inspect the hydraulic brake system for brake fluid leaks.
- Burnish brakes as necessary.
Burnishing Pads and Rotors
After brake pads have been replaced and/or rotors have been refinished, it is recommended that the new braking surface be broken in, or burnished. This can be accomplished by making 20 stops from 30 mph, using medium to firm pedal pressure. Take care to avoid overheating the brakes.