Okay, here is my problem. When the truck has been sitting for a while after having been driven a good distance, long enough to heat things up. When you start it back up it runs realy rough, but it starts up just fine. Then when you push on the gas it just hesitates and bogs down unless you push it to the floor then it takes off like it should. But, when you back off the pedal from the full down position it starts bogging again. It will do this for maybe a 1/10 of a mile then it runs like normal. It never does this when the car has been sitting long enough for every thing to cool down, like a couple hrs. And it always starts right up initialy no matter if its hot or cold. Im leaning towards a fuel pump problem, maybe when the fuel pump soaks up some heat it starts fritzing out until enough cool gas runs thru it to cool it off.
What do you all think? any other possibilities?
Thanks-jon