hey bro you have to build vacume at the bleeder valve! theres several ways. mighty vac works good. pull a strong vacume on the bleeder with it closed and carefully open it without the hose falling off. close the valve b4 you take the vac hose off. just make sure the res is full at all times! once you get most of the air out you can bleed it like a car, pump, open, close, realese, repeat......