Put a new fuel pump on my 92 ranger. 3.0 l 2wd, itll crank and you kan hear the pump run but wnt fire, any ideas?

Fuel pump.

You need to run a fault code test and see what shows up. To do that go HERE for instructions and code lists

does it crank over and not fire if so check for spark if tou have spark check the fuel rail for a tire valve looking device if cap is still on remove and press shrader valve while someone cranks engine if you have no fuel spraying out of this in great volume check fuses for fuel pump try swaping fuel pump relay with horn relay if these things do not work look under or just above carpet line on passengerside floorboard in center area near heater box for the inertia switch if red button can not be pushed unplug and jump plug with small wire and crank over if it starts this is your problem if you do not hear fuel pump at this point fuel pump is bad

Check for spark. No spark can be from the coil, igntion module, crank sensor. Have the codes check, this will at least point you in the right direction.

check fuel pump in tank turn the ignision on with the door open do not crank the engine! you should hear the fuel pump run for a few seconds. If it runs and stops check the fuel filter inline under the truck left side

check the fuel filter to see it that is plugged up. When turning the ignition key to on only without trying to start the engine you can hear the fuel pump running for a few seconds if working. If not the pump is bad

There is a fuel cutoff switch on the passengerside floorboard, towards the right kick pannel, there will be a little red button on top of it, check to see if that is tripped, also when you turn the key to the on position listen to see if you hear the fuel pump prime up, just a short buzzing noise from the underside of the cab, if you dont hear it, that is a good indicator that your fuel pump maybe bad, i would also check the pressure at the fuel rail, chrome or black colored bar located near the fuel injectors.

I would check the timing of the engine.
The timing may have skipped .
I would check the fuel pressure. The fuel pump could have took a dump.

Can you hear the fuel pump coming on when you turn the ignition key but do not turn it over to start.
IF you do not hear the fuel pump coming on replace it.

Injectors or Carb? is there fuel presurt to the line near the engine and what is the presure.
The mechanoc was it a shop or buddy at home? Can you hear the fuel pump run when the key is turned on?