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Manual Bleeding Procedure

  1. Deplete vacuum reserve from power brake booster by depressing brake pedal several times with engine off. Fill master cylinder reservoir and keep full during bleeding procedure. If master cylinder is not suspected of having air in bore, go to step  4 . If master cylinder is known or suspected of having 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. Again, loosen forward fitting. Tighten fitting while pedal is still at floor. Release brake pedal slowly. Wait 15 seconds.
    NOTE: Rapid pumping of brake pedal causes master cylinder secondary piston to move into a position that makes bleeding system difficult.
  3. Repeat step  2 , including 15 second wait, until fluid is clear and free of air bubbles. Repeat procedure at other (rear most) 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.
    NOTE: Use the following bleeding sequence: RR, LF, LR, RF.
  4. If wheel cylinders/calipers are known or suspected to have air in them, raise and support vehicle. Place proper size box end wrench over bleeder valve. Attach one end of clear tube over valve and submerge other end in container partially filled with clean brake fluid.
  5. Have an assistant depress brake pedal slowly and hold. Loosen bleeder valve to purge air from cylinder. Tighten bleeder valve to specification and slowly release brake pedal. See TORQUE SPECIFICATIONS  . Wait 15 seconds. Repeat procedure, including 15 second wait, until all air is removed.
  6. Remove tube and wrench. Install bleeder valve cap. Fill master cylinder reservoir with fluid. Ensure there is no sponginess in brake pedal and that BRAKE warning indicator is off.
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