The ABS on my 2001 Sport Trac 4X4 is not working. The light comes on/stays on. I had one of the front sensor go. Felt like the brakes would release at slow speed. Fixed that problem and everything was good for 6 months.

Now the light stays on. Before it started staying on I would get a noise, almost a growl, and I would feel a pulsing in the pedal at slow speed just before stopping. The light would then come on. Thinking this is a different problem. I did also replace the rear sensor just to be sure.