Master Cylinder Replacement (JH6)

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Master Cylinder & Components

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
CAUTION: Refer to Brake Fluid Irritant Caution . CAUTION: Refer to Brake Fluid Effects on Paint and Electrical Components Notice .
1	Brake Pipe Fitting (Qty: 2) NOTE: Refer to Fastener Notice . Tighten: 25 N.m (18 lb ft) Tip: Using a suitable tool, remove the brake fluid from the master cylinder reservoir. Cap or plug the brake pipes to prevent brake fluid loss and contamination of the brake system.
2	Brake Master Cylinder Nuts (Qty: 2) Tighten: 33 N.m (24 lb ft)
3	Brake Master Cylinder Tip: Disconnect/connect the brake fluid level sensor electrical connector. Bleed the brake system. Refer to Hydraulic Brake System Bleeding (Manual) or Hydraulic Brake System Bleeding (Pressure) .