My 2004 navigator turns over but has spark and fuel but will not start

What is your question?

I have replace the flywheel,starter,fuel pump,map sensor and crackshaft position sensor still no start I wanted to know if it was anything else I should be looking for or changing . The truck still crack with no problem just came home n it cut off n the drive way n has not started sense

What makes this problem better or worse?

It just cut off and would not start back up

How long has your 2004 Lincoln Navigator had this problem?

2 months