today i was driving on the highway and the light suddenly came on.. the brakes are working fine, and since ive owned the truck ive never had any problems with the brakes (or anything esle) why would the light come on?? how can i fix this problem?

 

Happened to me a couple months ago too. Driving to and back from Ft. Lauderdale. I asked when I came back and didn't find anything either. Patshea said it happened to him too. Haven't seen it since.

 

yea it turned off when i stoped to put gas. then 5min later on the road it came on again.

 

Did you think about checking your brake fluid?

If not, then it might be a ABS Tone Ring on one of the axles.

 

ill check my brake fluid in a bit. wat is a tone ring? where are they? are they expensive to replace? I dont think its an axle.

 

A tone ring is something like this... it's not a F150's... but rather a Bronco's... but you can get the general idea... it looks like a gear, if you know what I mean...

 

oooh ok, damn now to figure out wat side it is..
if i get new rotors will they come with new tone rings? slotted & crossed drilled perhaps?

 

Well... it's sometimes hard to tell what's wrong... it could either be a bad sensor or else the tone ring is chipped, dented, or cracked. The cracked ones are sometimes a PITA, because it's hard to tell which one it is if it has a hairline fracture.

Anything ABS is sometimes a mystical magical thing... at least from my experiences... unless I can actually see what's wrong.

Most of the time its one of those three; (1) Low brake fluid, (2) Dented, Chipped, Cracked tone ring, or (3) Sensor failure...

Sometimes the hardest thing to do is fine which side of the truck it is on. It's a 25% chance on one of the four corners of the truck.

No, tone rings are separate.

Hope this helps... I'm tired, and I'm off to bed.

 

mine went off when I tried to run two different sized tires front and back

 

Could be the fluid level or maybe one of the wheel speed sensors went bad.

 

My ABS light came on intermittently so I mentioned it to the dealership when the truck was in for something else. They replaced my ABS cluster rather than screw with it.