Problem with my 6.0L, need help/advice!
I have my truck parked for the winter right now, but a month ago when it started to get cold out, the day before I put it in storage, it was running strange. It started fine and ran fine for the most part, but when I slowed down or came to a stop and tried rolling again, it would hesitate. I could press the accelerator as much as I wanted but it wouldn't rev up the engine, it would just sit there, if i pumped the fuel a bit it would slowly come back to life. When I would try and get it going by pumping the fuel it seemed to be blowing alot of smoke out, rich smelling smoke, which seemed white(although it was just probably white due to the cold?). Once it was going I could drive it down the highway and seemed to have no issues at all.
Any idea of what I am into here? what could cause these symptoms?
Thanks in advance
By the way I have:
2004 F250 Harley Edition (100 000miles)
4" straight pipe
Diablo Sport programmer(came with the truck)