problems on a 03' 6.0!!!!!

[sawyer1]

Its not mine but its my dads, Hes got 72,000 miles and when he starts his truck in the morning allows it to warm up (15-20min) and takes off it just doesnt run good its almost as if the turbo isnt spooling up, then 3-4 miles down the road it runs fine like a 6.0 should has tons of power after the 3-4 miles. He is totally stock has already changed fuel filter, air filter and his egr valve is clean and working, he also unplugged it to see if that made a difference but no luck problem has been going on for a while so any help will be much appreciated. Thanks for the help!!!

[dustindiesel]

i believe there is a reprogram update for cold performance issues..got to take it to the dealor and they will reflash it

[sawyer1]

Thanks i let him know hopfully that will be the problem.