Power Loss When Getting up to Normal Opperating Temperature!

[ROSCOE818]

Need some help with a problem I have with my 97 F-350 Powerstroke. After sitting over night and starting when engine is cold and running it down the road, truck runs great. When it gets up to normal temperature, I lose power. When I stomp down to get out in traffic, it feels as if it is loading up or something. The best way I can describe it is, it feels like a cold, carburated gas motor that hasn't had the chance to warm up in the morning when you stomp the pedal down to go. You have to ease into the fuel slowly! Normal driving is OK! But if want to get out in traffic and go, forget it. It feels like it has to think about it. I have the Banks Power Pack! Had 1 injector replaced and all injectors re ringed while they were replacing injector. That fixed most of the problem but still isn't where should be. I service it regularly. Currently running AMSOIL. Let me know what you all think or have you herd anything. I have tried to research this problem and can't find anyone or herd anyone with this problem. Thanks Randy

[Payne]

no codes showing up or haven't you got that far?

[ROSCOE818]

No codes either. Also cleaned the screen at fuel preasure regulator.

[mschn99]

Have you checked fuel pressure?? sounds possibly like a weak fuel pump...

[ROSCOE818]

No I have not done that. That was going to be my next move. What is the specs for the fuel preasure? I think I read, Idle is 50psi and under load is 50 to 90psi. Does anybody know what the fuel preasure should be?