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Manual Bleeding

NOTE: If Brake Pressure Modulator (BPM) valve has been removed and installed, brake system must be bled.
  1. Deplete vacuum reserve from power brake booster by depressing brake pedal several times with engine off. Fill master cylinder and keep at least half full during bleeding procedure. If master cylinder is not suspected to have air in bore, go to step 4). If master cylinder is suspected to have air in bore, go to next step.
  2. Disconnect forward brakeline fitting at master cylinder. Allow fluid to flow from fitting. Tighten fitting to specification. See TORQUE SPECIFICATIONS  . Have an assistant depress brake pedal slowly and hold. Loosen forward fitting. Tighten fitting while pedal is still at floor. Release brake pedal slowly. Wait 15 seconds.
  3. Repeat step 2) until fluid is clear and free of air bubbles. Repeat procedure at other (rearmost) brakeline fitting on master cylinder. Master cylinder is now bled. If wheel cylinders/calipers are not suspected to have air in them, it is not necessary to bleed them.
  4. If wheel cylinders/calipers are suspected to have air in them, raise and support vehicle. Remove bleeder valve cap from first bleeder valve to be serviced. See BRAKELINE BLEEDING SEQUENCE  table. Place wrench over bleeder valve.
  5. Attach clear vinyl bleeder hose onto bleeder valve. Place other end of hose in clear container partially filled with clean brake fluid. Submerge end of hose in fluid. Slowly depress brake pedal and hold. Open bleeder valve to purge air.
  6. Close bleeder valve. Release pedal. Wait 15 seconds and repeat procedure until fluid is clear and free of air bubbles. Repeat procedure on remaining bleeder valves.
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