Ford f150 not starting

Hi. My ford f150 2010 is wont start. Issue is .

When key is instertes into the ignition and turned to
ON/Start the truck engines just turns over and cranks,
keeps cranking for a solid 5-10 seconds then shuts off.
Kept turning key and nothing , wont start.

Check battery all good
Checked stater all good obviosusly if it cranked
Spark plugs all good
And just recently thought it was a fuel pump so i replaced
and put in a new pump and no good. Still wont turn on.
Checked the fuel rail and there was no pressure or has
leak coming out the valve on the engine.

Whats the f@&$”:; problem. Any help suggestions.

Also sometimes it cranks and turns over to start and runs
when left untouched for a day or two . And when you try
to remote start it , messes up everything and even the key
ignition start wont turn it on and sits on my driveway for a
day or two. What could the problem be thanks any help is
appreciated