i have a 2002 s10 zr2 and i have had an abs problem going on lately.

What is your question?

my abs light is on and off when im driving and sometimes when i brake on perfectly dry asphault it will pulsate the pedal as if its on ice. i scanned it with a tech 2 gm scanner and it said it was abs sensor 3 and also theres a pulsating ticking noise when i hold the brake and its in drive. any guess as to what