1996 Chevy Truck won't start

First thing you can do is check for bright blue sparks, and then check for fuel pressure at hte fuel rail.

If you have sparks and no fuel pressure check for voltage at the fuel pump, if there is voltage and no pressure from the pump replace the pump, if no voltage check the fuel shut off switch, relay and all wires.

If you have no spark, check for voltage coming off of hte coil, if none replace.