i recently changed my front rotors and pads, and when i removed the cap the fluid was so low that some air got in the lines. i went to bleed the rears and the bleeders are completly gone. it looks like the previous owner snaped them.anyone know how to remove air from the lines without removing the bleeders. i wouuld tap and die them out but everyone is closed for the holiday and i cant buy new bleeders. any ideas?