Avalanche 2500 4WD V8-8.1L VIN G (2003)
Note: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in Cautions and Notices.
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 and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
5. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
6. Inspect the caliper operation. Refer to Brake Caliper Inspection.
7. Place a C-clamp as shown. Slowly bottom the pistons of the caliper. It may be necessary to reposition the C-clamp to allow both of the pistons to
bottom into the caliper bores.
Note: 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.
8. Remove the caliper from the mounting bracket and support the caliper with heavy mechanic's wire or equivalent. DO NOT disconnect the
hydraulic brake flexible hose from the caliper. Refer to Brake Caliper Replacement - Rear .
9. Inspect the caliper assembly. Refer to Brake Caliper Inspection.
10. Remove the brake pads from the brake caliper bracket.
11. Remove and discard the anti-rattle clips from the brake caliper mounting bracket.
Installation Procedure
1. Install the anti-rattle clips to the brake caliper bracket.
2. Install the brake pads to the brake caliper bracket.
3. Install the brake caliper to the mounting bracket. Refer to Brake Caliper Replacement - Rear .
4. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
5. Lower the vehicle.
6. With the engine OFF, gradually apply the brake pedal to approximately 2/3 of its travel distance.
7. Slowly release the brake pedal.
8. Wait 15 seconds, then repeat steps 78 until a firm pedal is obtained. This will properly seat the brake caliper pistons and brake pads.
9. Fill the master cylinder reservoir to the proper level with clean brake fluid. Refer to Master Cylinder Reservoir Filling in Hydraulic Brakes.
10. Burnish the brakes pads and rotors as necessary. Refer to Burnishing Pads and Rotors .
