Should I be concerned that my F150 is very inconsistent when it comes to starting up? Sometimes it's a quick crank and we're off and running. Other times it's cranking and cranking before firing up. No real rhyme or reason.

 

My 2018 with 2.7 was doing that. About a week later started running like crap. Dealer got me squared away, #3 injector was stuck open dumping fuel into cylinder. Now its going back for new catylitic converters,