He guys. I'm having some running problems. I stopped for fuel yesterday and left my truck idling since it was hot and had my daughter in truck. After pumping fuel a couple of minutes later my truck surged at idle while sitting there at the pump. Then it idles up almost like high idle in the folder weather. I take off and come to a red light and almost but the car in front of me in the azz. It surged and the brake almost didn't hold it. It's never done this before. It does it hot or cold. One thing I noticed is it idles fine when I first start it, then after 30 seconds or so it surges and idles up. It's doing it about the time the turbo would start to cycle? I'm going to run it for codes today. Any help in the mean time would be appreciated. Early 04 f250 4x4 cc 6.0 psd 218k miles.