1988 chevy 2500 5.7 no por to fuel pump fuse

Clogged fuel line or filter or no power to the pump. Listen for power to the pump with the ignition on but not cranking.

fuel pump fuse fuel pump relay ignition switch

check all ur fuses for continuity first, then u can also try to swap out ur fuel pump relay with another relay that looks jus like it, be sure to use a relay like for ur horn or ac relay something that wont affect necessary or direct engine circuits like for ex. an ecm fuse or bcm fuse. if fuses r good an swappin relays wont work, next is to trace bak from fuel pump ur wires an possibly keep back probing to see if u have a broken wire from relay box to pump . good luck hope this was helpful . in ur fusebox ur fuelpump fuse should b labeled or easily found in fuse box legend, most likely on bak of fusebox cover....

fuel filter first, then fuel pump. check relays and fuses. Bleed air from fuel rail and check for injector o-ring leaks

without starting the engine position the key to the on position.
you can hear the fuel pump operationing for 4 to 6 seconds upon having the key on.
if not heard running check the fuel pump fuse, the fuel pump relay, and the engines oil pressure switch.
they all work the pump you see
the engine oil pressure switch runs the pump untill the engine reaches normal pressure
once the pressure is reached to the normal range the computer shuts that circuit off and turns the fuel pump relay on

Usally the fuel pump, which is in the gas tank. Check the fuel pump fuse and fuel pump relay.

Could be. But more then likely it's the gas. The gas you get these days from the pumps will gunk up after around 30-40 days. I'ld change the fuel filter see if that works. If not you might have to take the tank out to clean off the pickup sock. It's a small filter type on the end of the fuel pump. Of course, you should do a pressure test to see first.

Should be under your hood if it has one. Are you saying your fuel pump quit, or what?

fuel pump relay on the engine side fire wall passenger side. replace that and check fuses. I had the same issue and this fixed it. the ground for the pump is also located on the frame rail by the gas tank. make shure it didnt come loose

check for power too the pump first with a test light if you have power too it then the pump is bad if not youve got a short some gms also have a fuse check for that also