Yukon/Denali XL 1500 4WD V8-6.0L VIN U (2004)
Brake Caliper: Service and Repair
Brake Caliper Overhaul - Front
Brake Caliper Overhaul - Front
Disassembly Procedure
Caution: Refer to Brake Dust in Service Precautions.
Caution: Refer to Brake Fluid Irritant in Service Precautions.
Caution: Do not place your fingers in front of the piston in order to catch or protect the piston while applying compressed air. This could result in
serious injury.
1. Remove the brake caliper from the vehicle. Refer to Brake Caliper Replacement - Front
2. Place a thin piece of wood in front of the piston in order to prevent damage. Remove the piston by directing compressed air into the brake hose
inlet fitting port of the brake caliper housing.
3. Remove the piston boot.
4. Remove the piston seal.
5. Remove the brake caliper bleed screw cap.
6. Remove the brake caliper bleed screw.
7. Inspect the brake caliper bore and the piston seal groove for scoring and corrosion. If you find excessive scoring or corrosion around the piston
seal area, replace the brake caliper housing.