G6 V6-3.6L (2007)
1. Deplete the vacuum from the vacuum brake booster by removing the vacuum check valve (1) from the vacuum brake booster grommet (4). Do not
disconnect the vacuum check valve (1) from the vacuum brake hose (3).
2. Disconnect the electrical connector from the brake fluid level sensor.
3. Disconnect the brake pipes from the master cylinder.
Important: Install a rubber cap or plug to the exposed brake pipe fitting end in order to prevent brake fluid loss and contamination.
4. Plug the open brake pipe fitting ends.
5. Remove the 2 master cylinder mounting nuts.