2004 expedition -----my abs light came on a few weeks ago and i knew is was about time for new brakes so i figured that was the problem/// well no luck so i took it to FORD and they diagnosed it as a bad right rear wheel sensor. i replaced the sensor and the light came back on again.. still having the same problem.. does anyone know what else it could be??? i dont wanna pat another 100 bucks so ford can tell something else is bad it then it not be it... thanks

 

Many times when a code says there is a problem with a sensor does not always mean the sensor is defective. There could be a problem with the wiring or the tone ring that works together with the sensor. Also there have been instances where the light comes on and the code says the R/F sensor for example, when the problem was with the L/F sensor sending wrong info to the ABS unit and the computer thinks the right side sensor is defective.

 

I have a 2003 Expedition with 110,00 miles. I just had problems with my ABS light coming on due to my wheel bearings going bad. Changed the bwheel bearings and all is well.