89 chevy pick-up wont start

89 Chevy 1500 acts as if running out of gas. Once motor stops, will turn over when cranked but will not start. Replaced fuel filter, relay & fuel pump. When key turned forward fuel pump wont turn on. What could be the problem?

Check for voltage at the pump during initial key on (engine prime). If there is no voltage, try to trace back the wires. I have heard of faulty ignition switchs causing no voltage issues.

When the pump dies, do you also lose spark?

my trucks doing the same thing ok i just fixed mine try pliceing into the ground wire and running a wire to the frame thats what just fixed mine