Delayed engine shutdown?

[tom.boswell.79]

I've noticed this weekend that my new to me 2016 F350 6.7 CC DRW doesn't shut off immediately when I turn the key off. Sometimes I already have the key out before it stops. It never seems to run longer than a couple seconds. Is this normal? Thanks


Sent from my iPhone using Tapatalk

 

[jimdawg185]

My 17 dwells for about a second. But it's push button start


Sent from my iPhone using Tapatalk