OEM 2004 Buick Rainier Brake Master Cylinder

2004 Buick Rainier Brake Master Cylinder Parts and Q&A

• Q: How to replace the brake master cylinder on 2004 Buick Rainier?

  A: Begin repair after setting the parking brake by disconnecting fluid level sensor and brake pipe connections at the master cylinder. The exposed brake hose fittings demand rubber sealing caps to shield brake fluid from escaping or mixing with foreign materials. Insert plugs into the brake pipes then remove the master cylinder mounting nuts and take out the master cylinder with fluid draining work. Before putting in the new parts you should drain fluid from the master cylinder through a bench bleed process. Set the motor master cylinder mounting nuts properly at a torque of 36 nm which is 27 ft-lbs. Connect the brake pipes after unplugging their rubber seals and tighten the fittings according to specifications at 17 nm (13 ft. Lbs.). Rejoin the master cylinder fluid sensor connection and complete hydraulic brake bleeding.