white_dc

iTrader: (12)

Finally had time to put some miles on my 2012 5.0 and was wondering if anyone noticed a hesitation immediately after cold start? I thought it might have been the fuel but i have done 2 fill ups and the truck still has the hesitation for the first 5-10 minutes after start up.

Johnz

I'm experiencing the same thing. Posted on this site back in July. I'm caught in a cirlcle of phone calls between Dealership and Ford. Neither know what to do and no one has yet to look/work on my truck. Extremely frustrating.

bamabat

Experiencing the same issue. Dealership noticed it to. Supposed to have emailed Ford about it. Need to call them tomorrow.

sullyman

No, I haven't experienced anything like that.

jcain

Of course you haven't. The coyote is mythical...

azdriver

My new truck does this as well. Runs like a#$ for the first few minutes. Not impressed with the tune Ford has put on these trucks. I assume a good tune would resolve the issue as seen in another thread.

sullyman

Well, aren't you feeling like a smart@$$. Damn it, my truck arrived on a rainbow, pulled by unicorns. Did you know that all eco boost trucks are made at Santa's workshop by mentally challenged elves?


Back to real life now...

Could it be bad gas, or improper plug gaps? This is not a normal trait for this engine, and I would take it in to the dealer, and have then fix it.

azdriver

Can't speak for others. My truck is now on its second tank of gas. First one was put in by the dealer 100 miles away. I even filled up with mid grade (89) instead of regular unleaded. Hard to believe both tanks would cause this. Going to have to check into it. Maybe I should have kept the Lightning and left well enough alone......

sullyman

Take it in. One of the things most Coyote engine owners love, including myself, is that they run smooth as glass, normally. If your truck is idling rough, that is not normal, and you should have the dealer check it out.

straightaxle

If the first tank of fuel had contamination in it, it *could* take quite a while for all the junk to work out of the filter, lines and injectors.