Removal Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Master Cylinder Fluid Level Sensor Connector

Courtesy of GENERAL MOTORS CORP.

Apply the parking brake.
Disconnect the master cylinder fluid level sensor connector.

Fig 2: Identifying Brake Pipe Connection At Master Cylinder

Courtesy of GENERAL MOTORS CORP.

Disconnect the brake pipes from the master cylinder.

Fig 3: Capping Off Brake Pipes At Master Cylinder

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Install a rubber cap or plug to the exposed brake hose fitting ends in order to prevent brake fluid loss and contamination.

Plug the brake pipes.

Fig 4: Master Cylinder To Booster View

Courtesy of GENERAL MOTORS CORP.

Remove the master cylinder mounting nuts.
Remove the master cylinder assembly.
Drain the master cylinder of brake fluid.