OEM Buick Rainier Brake Master Cylinder

Buick Rainier Brake Master Cylinder Parts Questions & Experts Answers

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

  A: Start by engaging the parking brake then disconnect the sensors on top of the Brake Master Cylinder. After that remove the brake pipes at their connections with the master cylinder. It is necessary to put rubber plugs on the open ends of brake hoses to stop brake fluid from leaking and keeping the system clean. Unscrew the mounting hardware from the master cylinder and withdraw the unit while draining its fluid into a container. Only then perform bench bleeding on the master cylinder prior to its new installation. Hand-tighten the master cylinder mounting nuts but also apply 36 n.m (27 lb ft) torque to them. Attach brake pipes to the lines and tighten their fittings to 32 n.m (24 lb ft) while removing rubber plugs. End by connecting the master cylinder fluid level sensor while going through a brake system bleed process.