2017 with 26k miles on the truck, I have noticed sometimes in the morning and at lunch it takes an extra second or two to crank before the truck starts. Last week I go to start it after it sat all day and it cranked for a few seconds, fired up and shut right off and put up a check engine light. I turned the key off and tried it again and it fired right up. Check engine light went off the next morning. I took it to the dealer this morning and they can see where it threw a code for not starting but that is all they can see and it starts fine for them all day.

What if anything should I do about this? I have 10k left under full warranty and dealer says just see if its gets worse. Its not a huge deal and may only have a extra second cranking twice a week or so but I just don't like hearing it crank so long (some guys have mentioned "whats up with that on a new truck" etc...)

Anyone else have a similar problem?

 

try going to a different gas station...

water or to much benzene in the gas.

 

Interesting, I use two different stations but only run 87 octane. Could an additive help in this case?

 

I would try "Dry Gas" or similar... additive... not to add octane..

 

 

I will try that 3 second thing. The other thing I have been doing since is just tapping the key over to start it, not holding it over like an older model car. Does that help, maybe?

 

You don't need to hold the key in the start position to start. Just turn (or bump) to start and let go, it will start itself. I'm usually pulling the seat belt across myself by the time it's running.

 

 

 

Same problem 65k on 2017 f350 6.2. I've had it stumble start many times. Doesnt do it for the dealer, of course. They threw a PVC valve at it, no dice. No check engine light.

 

 

 

 

 

Cross post in the main forum. Mine is still doing it, it is worse at lunchtime when the truck is sitting in the heat. Two rough starts in a row this weekend for me (1 hour apart)

Never really seems to do it in the morning.