I have a1999 Explorer Sport. Recently the cruise quit working completely. When I tried to set it the cruise light would come on and go right back out. I replaced the pressure deactivation switch on the master cylinder and no more problems for about two weeks. Then I got an ABS light intermittently along with the cruise only working when it wanted to. As both front hub bearings and sensors had just been replaced I replaced the speed sensor on the rear differential. No more ABS light but the cruise still works only when it wants but now when it's not working I can't get the cruise light to even flash!