ok so i bought this truck few months back 99 f350 7.3 6 speed with 281k was told it needed a throttle sensor by several people replaced it no help so any ideas on what i need to do next my truck smokes on start up warm or cold it will start and idle i have to pump pedel to idle up but then i have to let run for 10 15 mins before i try to go anywhere if not i will start out truck will start spitting and smoking bad then die start back up and go through the same pump pedal stuff once truck warms up it stops smoking and runs great until it sits from over a period of around 6 or 7 hours then back to the same stuff ideas im about ready to burn the truck lol