Hello all, I have a 98 expedition and the abs light has been on and off for about a year or so. The real problem is twice in the last couple of months when you hit the brake pedal it goes to the floor. 99% of the time the brakes work great but the two times almost caused an accident. Any ideas? I greatly appreciate any help. Thank you, Mike

 

Hmm. Could be one of these:
1. Extremely low brake fluid level in master cylinder
2. Bad master cylinder
3. Ex-wife?