94 silverado won't start. it's not getting any fuel. changed the relay and checked fuses and still won't start. is there anything else to check before changing the pump?

you could check for oil pressure , could be a fault in the oil pressure sensor that is holding the pump out. i have seen some of these trucks have a loose ground wire near the fuel pump also

cutlikeabuffalo oil pressure? its not running yet!!! electric fuel pump has nothing to do with oil pressure before start-up. check for fuel supply to throttle body or rails. a fuel pressure test will determine sufficient supply,u could also just loosen a fitting to check for presence of fuel being pumped up to engine. restriction could also be due to clogged inline filter or blockage at pickup tube inside tank. This would more likely generate a rough running or low power condition , however it "should" still fire. Check for power to pump @ connector 3pin near driver side rear of truck wire loom going from frame rail to pump at top of fuel tank, yes it could be a poor ground. Ground wire from pump side of connector to frame. If no power work forward from there. Check breaker/ fuse/ relay and wiring. a point to point voltage drop test would be the best way to locate hidden resistance in the wiring , a break, short ,or corrosion. If good power and no fuel, either pump is not running, (u can usually hear it work when key is first turned on for a few seconds) or there is a restriction.