Please help, we are at a loss


I own a real clean and invery good mechanical condition,1992 Buick Lesabre custom with ABS. A week agomy breakes went out (pedel went to floor) while driving home from work. I drove23 miles home, pressing the pedal clean to the floor many times to stop. The next day Ireplaced the master cyl. with a remaned from Advanced Auto Parts. We bench blead themaster cyl.After replacing the master cyl.the breakes worked again but the breake pedal would stick down every now and then but only for about 3 to 4 seconds and then would release. We replaced the new master cylinder with another new one (not remaned)from Auto Zone and blead the system on the car and again got all the bubbles out,the pedalis still sticking, just not as much.... What the heck going on with the breake system? Please help me with thisproblem!


Thanks very much!Edited by: miacharlie