Flushing The Hydraulic Brake System

Flushing the brake hydraulic system is running new brake fluid through the brake system until the brake fluid at each bleeder valve comes out clear.

Flush the brake hydraulic system for the following reasons:

• When new hydraulic brake parts are installed.
• When contamination may be present. Flushing is the only way to clean contaminated fluid out of the system.
• When you do not know the grade of brake fluid in the brake system.
• When mineral oil is present in the brake fluid.