kicker, how "new" is the truck to you? How many miles on it? When i bought mine the dealer told me to run at 40 mph for 20 miles, kick it up to 60 mph for 20 then 80 for 20 to train the computer and get it used to how its gonna run. Just a thought...

 

Oh yea....a dealer that has no clue....You dont have to do that at all....Break it in like you are going to drive it for the rest of its life....

Anyway, my truck did it when i first got it....i took it to the dealer because my A/C went warm...when it was in there i told them about it, and they told me that have a PCM Flash for it. they flashed it andit doesnt do it anymore. Mine would actually stall at a light here and there.