Removal (Vacuum Boost)
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, and 2003 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
- Apply the park brake and block the wheels.
- Disconnect the electrical connector from the brake fluid level sensor.
- Disconnect the brake pipes from the master cylinder. See Fig 1.NOTE: Install a rubber cap or plug to the exposed brake pipe fitting ends in order to prevent brake fluid loss and contamination.
- Plug the open brake pipe ends.
- Remove the master cylinder mounting nuts. See Fig 1.
- Remove the master cylinder from the vehicle.
- Remove the master cylinder reservoir. See MASTER CYLINDER RESERVOIR .