Answer to: Where is fuel pump located and diagram to replace old fuel pumpYour fuel pump is inside the gas tank. You will either have to take the bolts out of the bed and jack it up on the drivers side. Or you can take the two straps loose from the tank, and unbolt the screws from inside the gas lid. And ease the tank down. You would also have to jack up the left rear of the truck to get it out. Hope this helps.