Master Cylinder Replacement (JH6)

Fig 1: Master Cylinder (JH6, JH7)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
WARNING: Refer to Brake Fluid Irritant Warning . CAUTION: Refer to Brake Fluid Effects on Paint and Electrical Components Caution . Preliminary Procedures Using a suitable tool, remove the brake fluid from the brake master cylinder reservoir. Discard the brake fluid into an approved container. Disconnect the brake fluid pressure sensor electrical connector, if equipped.
1	Master Cylinder Fluid Level Sensor Electrical Connector
2	Brake Pipe Fitting (Qty: 2) CAUTION: Refer to Fastener Caution . Procedure Remove any dirt or debris from the brake pipe fitting. Cap the brake pipe fittings to prevent brake fluid loss and contamination. Tighten 32 N.m (24 lb ft)
3	Brake Master Cylinder Nut (Qty: 2) Tighten 36 N.m (27 lb ft)
4	Brake Master Cylinder Assembly Procedure Remove and discard the push-on nuts on the master cylinder mounting studs, if equipped. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding (Pressure) , Hydraulic Brake System Bleeding (Manual) .