So I finally wrapped up changing the steel lines in my 2004 Yukon after a burst line and brake failure. used the pre-bent GM kit and it was time consuming but relatively straight forward. also did the rubber lines, rebuilt calipers, pads/rotor. so everything's new. bled with a vacuum bleeder which worked great. did them all a couple times, got a firm pedal, went out and braked a bunch of times on gravel etc to try and get the ABS model to cycle. everything works great now, but when I bleed I'm still getting air intermittently even tho the pedal feels good and it stops well. I read that you need to go to a dealer and have it bled electrically to open all the ABS solenoids. but is there an alternative? I hate to bring it in now after doing all the work. should I drive it for a while and go back and bleed again? thx! jp