OEM 2001 Buick LeSabre Brake Master Cylinder

2001 Buick LeSabre Brake Master Cylinder Parts and Q&A

• Q: How to replace the brake master cylinder on 2001 Buick LeSabre?

  A: To replace Brake Master Cylinder; disconnect the electrical connector of Brake Fluid Level Sensor and the brake pipes from master cylinder in line, make sure to cap the exposed brake pipe fitting ends using a rubber cap or plug to avoid losing fluids vales due to spillage. Next, insert the open brake pipe fitting ends, remove 2 master cylinder mounting nuts, and remove the master cylinder. When the reservoir is to be used again, take it out of the master cylinder. For installation, connect the Brake Master Cylinder reservoir to the vacuum Brake Booster if was detached, bench bleed the master cylinder, then connect it to the vacuum Brake Booster and refer to the fastener notice in service precautions. Mount the master cylinder with the 2 mounting nuts with 25 nm (18 ft. Lbs) of torque, then drain the plugs from the brake pipes and attach them to the master cylinder and tighten the fittings to 33 nm (24 ft. Lbs.). Finally, reconnect the Brake Fluid Level Sensor electric connector and bleed the hydraulic brake system.