I have a '95 F150 4x4 5.0 gas that starts most of the time, but not all of the time. I have pulled the ignition module and had it tested, and it is good. I don't have anybody to help me check if there is spark when it doesn't start so I'm not sure ( but I figure it is ) spark related. It has duel tanks and I have tried switching the tanks to see if it is a fuel pump issue but it doesn't make a difference. Also, it doesn't seem to make a difference if it is damp outside or dry, cold or hot, it is simply intermittent. Anybody have any suggestions?