I have a 92 Lasabre, brake pedals spongy and losing pressure at stop lights, once in a while pedal would go all the way down to floor. Was told master cylinder; Replaced Master Cylinder, Now I have no pedal and not able to bleed lines.Anyone with experienceor suggestions would be appreciated.


Thanks

The master cylinder normally is "bench bled" before installation. Your supplier should be able to provide instructions.