Tried new ignition switch. No change. What's wrong?

I changed the alternator and the battery in my 2001 expedition and I still can't get it to crank or have any power to it!

I have a 2001 Ford expedition and we just replaced the fuel pump and fuel filter in February. Just the other day it shut off on my while driving it. After having it towed home I have checked the relay, fuse and inertia switch, all seem to be fine. It will turn over, but wont crank. Dash is showing all dashes on odometer reading. It had a rough idle and hesitation in fuel before this recently happened. Please help. What do I do?

Not sure why else to change we change the throttle body sensor and mass air flow sensor still no change

key removed.Just started after I replaced battery,

. Just replaced battery. Would this drain my battery?

the 2001 expedition XLT has 166,000 miles and is being sold by a real dealership... is 166k miles decent for 6k?

I don't know what this is and I would like to know what it is and if its something to worry about?

stopping while driving I changed one sensor bank 2 but now I can't drive

one of the other dash lights comes on intermittently and should not. We fixed the horn problem, mechanic put a button on the front panel below knee level.

Says a lot of the wires in the steering column are all twisted together.