Removal Procedure
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Hydraulic brake systems use two distinct and incompatible fluids. Power steering fluid is used in the hydraulic brake booster system. Brake fluid is used in the master cylinder and brake pipes. Use extreme care when selecting brake system fluids, or seal damage can result. Refer to General Information to select the correct fluid.
- Apply the parking brake.
- With the engine OFF, apply and release the brake pedal several times until the pedal becomes firm to deplete the power brake booster reserve.
- Without disconnecting the brake pipes, remove and position aside the brake master cylinder and secure with heavy mechanics wire or equivalent. Refer to Master Cylinder Replacement (JD9) , Master Cylinder Replacement (JH6) , Master Cylinder Replacement (Two-mode Hybrid) .
- Release the clamp and disconnect the power brake booster fluid return hose (1).
- Disconnect the power brake booster fluid inlet pipe fitting (1).
- Disconnect the power brake booster fluid outlet pipe fitting (1).
- Remove the brake booster pushrod retainer bolt (1).
- Remove the brake booster pushrod retainer (1).
- Disconnect the power brake booster pushrod from the brake pedal pin.
- Remove the 4 power brake booster nuts (1).
- Remove the power brake booster.