Chevrolet Trailblazer Service Manual page 573

To Install:
1. Bench bleed the master cylinder.
2. Attach the master cylinder assembly from the power vacuum brake booster.
Torque the mounting nuts to 27 ft-lb (36 Nm).
3. Remove the plugs from the open brake pipe ends.
4. Install the brake pipes into the master cylinder. Torque the fittings to 24 ft-lb (32
Nm).
5. Connect the master cylinder fluid level sensor connector.
6. Bleed the hydraulic brake system.