Sierra 1500 4WD V8-5.3L VIN B HO (2006)
Vacuum Brake Booster: Service and Repair
Vacuum Brake Booster Replacement
Removal Procedure
Caution: Refer to Brake Fluid Irritant Caution in Service Precautions.
Notice: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in Service Precautions.
1. Apply the park brake and block the wheels.
2. Remove the brake master cylinder.
3. Remove the vacuum hose from the brake booster check valve.
4. Remove the pushrod retaining clip (4) from the brake pedal stud (1).
5. Remove the stop lamp switch (2) and the pushrod (3) from the brake pedal stud (1).
6. Remove the 4 vacuum booster mounting nuts.
7. Remove the vacuum booster.
8. Remove the gasket from the booster and discard.
Installation Procedure