Did the LS1 brakes today, we bled them with a vacuum gun and had a friend at the reservoir making sure it didnt go dry. As we started, the brakes made a really loud sucking noise, my buddy said the reservoir always had fluid, but kind of worried we may have gotten air in the abs system. The car seemed to drive fine though. Just curious if that noise it made was nothing to be worried about or some thing to look in to. The brakes bled fine.

 

Air in the abs system will somtimes light the brake light on the dash. No light, no problem.

 

Drove the car today, no lights.