2012 Rough Idle on Cold Start/Harsh 1st->2nd Shift

[Humvee21]

So had the truck at ford and they said they cant fix anything unless it's throwing a specific code. Of course lol

Taking your truck into Ford is like taking a dumb kid to private school to get more teacher attention. You can't fix stupid.

 

[RatedSVT]

Yeah I also put my stock airbox back in when I took it so they didnt blame my AFE intake. And the truck hasnt done it since. I wonder if I need a tuner for the intake.