Manual Bleeding Procedure
- Deplete vacuum reserve from power brake booster by depressing brake pedal several times with engine off. Fill master cylinder reservoir and keep at least half full during bleeding procedure. Reinstall master cylinder reservoir cap. 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.
- Disconnect front EBTCM 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. Ensure reservoir fluid level is maintained. Again, loosen front EBTCM brakeline 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.
- Repeat step 2 , including 15 second wait, until fluid is clear and free of air bubbles. Repeat procedure at other (rear most) EBTCM brakeline fitting on master cylinder. Master cylinder is now bled. If wheel calipers are not suspected of having air in them, it is not necessary to bleed them.
- If wheel calipers are known or suspected of having air in them, raise and support vehicle. Remove bleeder valve cap from right rear wheel. Place proper size box end wrench over bleeder valve. Attach one end of clear tube over valve and submerge other end in clear container partially filled with clean brake fluid.
- Have an assistant depress brake pedal slowly, and hold. Loosen bleeder valve to purge air from caliper. 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.
- Remove tube and wrench. Install bleeder valve cap. Fill master cylinder reservoir with fluid. Proceed to left rear, right front and left front wheels in sequence. Ensure there is no sponginess in brake pedal and that BRAKE warning indicator is off.