I know this is a Ranger forum but I trust your guys' opinions. I have a 2000 F-150 with only 77,000 miles on it. The ABS light came on the other day. When I went to turn the truck off, I heard a motor running. It was something to do with the ABS pump. I pulled the fuse to turn it off so it would not run my battery down. Where should I start to get this problem fixed? I bought a new rear ABS sensor since I had a problem there before and replaced it with the one out of my Ranger. We will see what happens

 

Sounds like a relay is bad or two wires are touching. I would trace down the power wires for the ABS.

I didn't even know there is an ABS pump? I have never heard of it. But your probably right, I know bikes...not trucks