1998 Dodge Dakota Fuel Pump?

For about a month about the same time I liowered my truck, at a slow start the truck would dye. Start it back up and all's fine. This might happed 1 in every 10 -20 starts. Now my wife just called and the truck will not idle she has to keep pumping the gas to keep it running. Im quessing it to be the fuel pump. Just how difficalt is it to test and replace if needed?

Thanks Jeff.