I have a 2008 f150 fx2 sport. A couple months ago it started to malfunction in the abs and traction control. Every time I started the truck and just get moving the breaks would chatter like the abs always trying to work and the truck would lung like the traction control always trying to work as well on acceleration. It would do this for a little while then it would just kick out the abs and traction control until it reset when started again. So I took the truck to my local ford dealership cause I have extended warranty and I figured its an electrical problem. They said that the sensor is on the rotor and since it is they won't cover it under warranty. I've never heard of an electrical sensor being put on a rotating part. Just need some light on this if anyone has an idea about it or actually had this problem themselves. Thanks in advanced

 

The sensor is stationary, the toothed cog that excites the signal in the sensor is the rotating part and it's one with the brake rotor/hub. You probably need to dig deep into your warranty paper work to be certain but it seems to me it should also be covered.

 

Thanks man yeah I'll give it a good look tonight. I couldn't believe something electrical wouldn't be covered either

 

Yeah well technically it's not electrical, it's mechanical. But the electrical part wont work without it soooo......