I have a 2005 Ford f150 has new battery new alternator new starter and still won't start not even a click

 

You need to chase the circuits, both power and grounds.

 

If you have a second working key, try it.

 

My 2005 Ford f150 has new starter battery u get instrument lights but no cranking what is problem

 

What does your anti-theft light on the dash do when you attempt to start the engine?

 

It goes out

 

You have a poor connection in the main power circuit, the light goes out when you attempt to start because the circuit cannot supply any current (amps).

If it was an immobilizer issue or bad key, the engine would crank but not start.

 

May not even crank over because the immobilizer system will not allow the starter to engage.

 

What and were is immobilizer