i have a 92 f150 5.0 fuel injected 4 wheel drive just put a fuel pump in it it wasnt new but it worked just fine in the truck i took it out of but i put a new fuel filter in it injector cleaner but still after it warms up and i drive it a few miles it starts to bogg down mostly on take off idles fine well seems like it idles fine but ill be goin down the road third or fourth gear and ill feel a hesitation but it always smooths out but as soon as i come to a stop and go to take off it tried to bogg out but once i get up to speed it seems to smooth out yes it will hesitate every once in a while but mainly at stops i just dont get why it would run great before it warms up but the first few miles i drive it it runs perfect than goes to hell any help please im stuck thank you