Brake Caliper Replacement- Rear

Removal Procedure





1. Remove two-thirds of the brake fluid from the master cylinder reservoir.
2. Raise the vehicle and support the vehicle with proper safety stands. Refer to Vehicle Lifting.
3. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Wheels, Tires and Alignment.
4. Position a C-clamp over the outer brake pad and the caliper.
4.1. Tighten the C-clamp until the piston bottoms in the caliper bore.
4.2. Inspect the brake fluid level to avoid over flow when the piston is pushed in.
4.3. Remove the C-clamp.
5. Disconnect the front brake hose from the caliper.
5.1. Disconnect the brake hose fitting and two gaskets.
5.2. Discard the gaskets.
5.3. Plug the hole in the caliper housing, and in the brake hose fitting.





6. Remove the caliper guide pin bolts.
7. Remove the caliper from the caliper anchor bracket.
8. Remove brake pads from the caliper.

Inspection Procedure





1. Inspect the guide pin bolts and sleeves for corrosion.
Replace corroded guide pin bolts and sleeves.
2. Inspect the brake hose fitting bolt. If the through-hole is blocked, remove the blockage or replace the bolt.
3. Inspect the brake pads for wear. Replace as necessary. Refer to Brake Pad Inspection.
4. Inspect the caliper. Refer to Brake Caliper Inspection.

Installation Procedure

Caution: Do not move the vehicle until a firm brake pedal is obtained. Failure to obtain a firm pedal before moving vehicle may result in personal injury.

1. Install the brake pads.

Important: Lift the inner edge caliper boot next to the piston. Press out any trapped air. The boot must lay flat below the level of the piston face.





2. Install the caliper over the rotor and into the anchor bracket.
3. Lubricate the guide pin bolts with Delco Silicone Lube (GM P/N 18010909) or equivalent.

Notice: Refer to Fastener Notice in Service Precautions.





4. Install the caliper guide pin bolts to the caliper bracket.
Tighten
Tighten the caliper guide pins bolt to 31 Nm (23 lb ft).

Notice: Make sure the brake hose is not twisted or kinked after installation. Damage to the hose could result.





5. Install the rear brake hose fitting, two new gaskets, and the brake hose fitting bolt to the caliper.
Tighten
Tighten the brake hose bolt to 44 Nm (33 lb ft).
6. Bleed the caliper. Refer to Hydraulic Brake System Bleeding in Hydraulic Brakes.
7. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Wheels, Tires and Alignment.
8. Lower the vehicle.
9. With the engine running, firmly pump the brake pedal three times.
10. Check the brake system for leaks.