89 F-150. 4.9L. Dies, I figure it out and replace the fuel pump in the front tank, and replace fuel pump relay, runs great for a week. Starts sputtering as if running out of gas, dies. I replace the fuel filter, runs good for a couple of days, starts sputtering again, I think there is air in the lines, not sure how to bleed them but I let fuel out the shrader valve on the rail, heard air, but maybe need the special tool. And HERES THE KICKER! It runs great when cold, then gets up to operating temp. and starts dying like no fuel, and dies, wont start. Let it cool I can go a few more miles. If you guys cant get this I dont know who can. Not enough $ for a mechanic at this time. New job, trying to get there, been a great truck. Please help. Thank You... BigDbear