I have a 1992 Chevy Z71 4x4 with 232,000 miles I have change the coil, the ignition module, check the rotor and distrubator but it still will not start. It turns over but no fire. There is power going to the coil but no fire coming out.
It may be your fuel pump and not electrical. You can eliminate this as a suspect by removing the tube from the airbox to the throttle body and spraying quikstart into the tube before trying to start the truck. If it fires but then stalls out it is the fuel pump. If it doesn't fire at all continue with the electrical search.