99 F350 7.3 Loss of power and missing after warm up
My 99 ps is giving me trouble lately. I have been having a problem that you can drive the truck anywhere from 30 miles to 100 and somewhere in there it loses all power and starts missing badly, pull over to the side for about 5 to 10 minutes and shut it off, let it cool down and go again for 30 to a 100. I figured it was the electric frame mounted fuel pump because I thought it was starving for fuel. I figured it got hot and would stop. I replaced it and it seemed to help for a few days and then it started again and the pump seems to be working, does anyone have any suggestions.