Can't Get Brakes Bled!!!

[Rokcrln]

I assume you are doing it with the tires off and on jack stands right? If so I just learned a trick because last week I had the same problem. Turns out with the front suspention dropped the lines will not bleed right because their is more air in the line then the master can push out and it keeps creeping back up. You need to jack up the "A arms" so the bleeder is as high as possible then take a piece of wire and tie the rubber line down to the lower "a arm" so the air will travel up tot he bleeder and not back up to the frame. Try th esame with the rear end. I have been doing brakes for over 18yrs and have never heard of this untill I could not get my system to bleed and a brake shop told me this. I did not think it would do any good but I was at a loss so I tried it and 15 minutes later I was done with the best pedal I have ever felt in an old vehical. Does you combination valve have a single wire going to it? If it does turn you key on and see if the brake lite is lit up. You may have poped the valve. Here is my thread from last week it may shed some light on the problem.
http://67-72chevytrucks.com/vboard/s...d.php?t=241722

Good luck

Kevin
LFD Inc.