Do not pump the brake pedal at any time while having a bleeder screw open during the bleeding process. This will only increase the amount of air in the system and make additional bleeding necessary.
Do not allow the master cylinder reservoir to run out of brake fluid while bleeding the system. An empty reservoir will allow additional air into the brake system. Check the fluid level frequently and add fluid as needed.
The following wheel circuit sequence for bleeding the brake hydraulic system should be used to ensure adequate removal of all trapped air from the hydraulic system:
- Before servicing the vehicle, refer to the Precautions Section.
- Attach a clear plastic hose to the bleeder screw and feed the hose into a clear jar containing enough fresh brake fluid to submerge the end of the hose.
- Have a helper pump the brake pedal 3-4 times and hold it in the down position.
- With the pedal in the down position, open the bleeder screw at least 1 full turn.
- Once the brake pedal has dropped, close the bleeder screw. After the bleeder screw is closed, release the brake pedal.
- Repeat the above steps until all trapped air is removed from that wheel circuit (usually 4-5 times).
- Bleed the remaining wheel circuits in the same manner until all air is removed from the brake system. Monitor the fluid level in the master cylinder reservoir to make sure it does not go dry.
- Check and adjust brake fluid level to the FULL mark.
- Check the brake pedal travel. If pedal travel is excessive or has not been improved, some air may still be trapped in the system. Re-bleed the brakes as necessary.
- Test drive the vehicle to verify the brakes are operating properly and pedal feel is correct.