The fuel pump&sending unit are one piece, I replaced the pump/sender, fuel filter, plugs. Wires, new end on the fuel pump connector, fuel pump relay, another egr valve. Finally I took it to a local shop and they decided that it was the guage cluster was bad. It has fixed the vibration in the guage. Ps. The truck starts much better also now.
Monday, April 12th, 2010 AT 8:20 AM