I have an 87 F150 w/ 5.0. The truck was running fine, then wouldn't start. it turns over but won't fire. The fuel pump on the rail was not being energized. I replaced pump and filte and nothing. I checked for fuel shutoff on pasenger side and couldn't find it so replaced fuel pump relay. I then found the fuel shutoff switch on drivers side (Chilton pay attention!). Depressed button, turned key and pump is energized but still truck won't start. Can someone please help! Do I have to reset anything? What else can I try? Thanks