I have a F150 2014 and i am having a hard time with it. when i go to start it, it will turn over on its on, but wont start all the way. there are no engine lights on, and it seems to be running just fine when it does start.

I had a coworker tell me to put the truck in neutral and pump the break 2 times and then put it back in park and the truck would start. and just like some voodoo this worked!!!! But... im scared this wont work every time.

What is wrong with my truck??? My regular mechanic had no idea?