[Mutsky]

You will have to bleed all four wheel cylinders in order to get the air out of the system and restore good braking. Just remember to keep sufficient fluid in the master cylinder while you are bleeding the lines...also caution since brake fluid is hard on paint ....if you happen to spill some, wipe it off quickly and make sure you use the same kind of fluid (probably DOT 3) that is in your system already. Should say on the master cylinder cap what fluid to use.