Well i just finished installing my spoon calipers and lines. Ive bled the system so there is a solid stream from each caliper with no air bubbles, but it sounds like there is a leaking sound coming from the ABS control unit when the brakes are pumped. There is no fluid coming out and i cant seem to pinpoint its exact point of noise. So my question is....is this an indication that there is still air in the system, or is there another possible cause? Thanks

After re-bleeding again the noise is still there and the pedal just sinks to the floor when the brakes are applied. The system was in perfect condition before installing the lines and calipers. Im thinking its possible the line near where the sound is coming from is leaking? Any other ideas?

 

nm, it appears to have been the secondary seal of master cylinder leaking internally. I replaced the master cylinder today and the sound is gone. After i get everything back together and bleed the brakes tommarrow ill know if that was it for sure.