I got an 2001 expedition with 5.4 and a4wd. I have had this truck for a while and it's now grinding when you turn the wheel slightly and accelerate. It sounds like it's coming from the front right wheel. also stays in 4wd because I have abs problems also. The grinding noise is a metal on metal sound. I really need some help cause I'm in college and need this truck interstate ok! Any and all help is greatly appreciated !!!! Also sometimes it feels like there is some kind of resistance I the drive like the engine is going hard but the truck ain't going far. The truck also has 200000 miles and don't looked to have been takin care of before I got it .