92 s-10 no fuel at injector

I have a 92 4.3 the vehicle turns over but the injector will not spray fuel a few days ago the fuel pump was very loud today the pump will barely make a sound i have checked all of the fuses that I thought might have to do with fuel under the dash what would be the next step to take and how do I test the fuel pump without dropping the tank???

Somewhere near the Throttle Body you will find a schrader valve ( looks like a tire valve ). That is where you test the fuel pressure. You will need a fuel pressure guage.

Have you checked for spark?
Have you checked all fuses?
Have you tried a small shot of ether?

Since the fuel pump was noisy for a while that's probably the problem, but of course test it first.

if it's a pickup your better off raising the box rather than droping the tank to change the fuel pump.

Have you even checked the fuel pressure?

changed the fuel filter?