Now open the bleed screw and watch as fluid begins to flow.

If you're flushing the system leave the line open until you see fresh fluid coming out. Tip - buy fluid a different color than that currently in your car. Doing so makes it very easy to tell when the fresh fluid reaches the end of the line.

If you're bleeding your system you'll want to leave the nipple open until you no longer see any air bubbles at all coming out of the bleed nipple.

Repeat steps 5 and 6 on all four wheels using the sequence noted in step 4. It's recommended to go through the entire sequence twice.

Be sure to keep an eye on the power bleeder during this process. Do not let it de-pressurize or run dry; either can allow air to enter the system and you'll need to start bleeding all over.