When I go to hit the brakes in the 240D (hittng the pedal hard, not normal stopping) the pedal pushes back and I lose almost all braking. It has become a major safety issue, I already rear ended an exlorer (lightly, no damage to the ford, just broke my grille insert). The vacuum pump was recently rebuilt (torn diaphrahm, not sure if oil in the system could be causing it?) and I just replaced the front brake pads this weekend. Someone please tell me whats wrong? Any help is greatly appreciated.
Thanks
-Zach