It will not start unless I switch the ignition key on and off 3 or 4 times. After the vehicle starts it runs fine until I shut it off. Then it's the same problem. Had the vehicle tuned up (wires, plugs, air filter, ect) and it did not correct the problem. I know the fuel filter is part of the fuel pump and before I do the $300.00 fuel pump replacement I would like to see if anyone has any minor repair suggestions. Thank You