オリジナル投稿者： Alec ,
Sounds like your issue is the portioning valve. This valve pushes the correct amount of brake fluid to the brakes, and is what gives your pedal pressure. Had this same issue with my 1999 Ford Taurus, would push the pedal to the floor before any minimal response. I hope this gives some insight to your issue, as I'm no car genius. Good Luck.