I have an 06 and it does the same thing. All 6.0 do it in the morning when they start getting up there in the miles. It caused by the engine dumping tons of fuel in the cylinders and that fuel hitting the cold pistons. Also from the rings not seating right in the cylinders. I just let the truck run for about 10 minutes in the morning and that seems to be long enough for it to run right when you get in the truck
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