Bleeding Brake System: Notes
Bleed hydraulic system whenever air has been introduced into system. Bleed master cylinder and brakes at all 4 wheels if master cylinder lines have been disconnected or master cylinder has run dry. Bleed brakes with pressure bleeding equipment or by manually pumping brake pedal while using bleeder tubes. Always bleed brakelines in sequence or as specified on scan tool. See BLEEDING SEQUENCE . Do not allow the brake master cylinder reservoir to run dry during the bleeding operation. Keep the brake master cylinder reservoir filled with the specified brake fluid. Never reuse the brake fluid that has been drained from the hydraulic system.
Before bleeding system, remove all vacuum from power unit by depressing brake pedal several times. Bleed master cylinder first, anti-lock system components (if equipped), followed in sequence by rear wheel cylinders, and calipers. See BLEEDING SEQUENCE .