Fuel pump relay location and wiring diagrams please?

Yes I put in a jumper at the relay and the fuel pump will run. I put in a new relay and it fixed it thank you for the guide.

Fuel pump not working. Have replaced it with a new one, no luck. No voltage at grey wire to pump.

Have swapped out the relay, no luck

Have check the fuse next to the relay, okay. There is voltage at the fuse (test light)

I have read there is a place where you can test the circuit by providing a 12 volts jumper which should then cause the pump to run (or tell you there is a problem like a broken line - grey wire). But I don't know where this is.

Assuming the line is okay to the pump, what am I missing that is keeping the pump from getting power?

The engine has spark and so on. Does not run. No code comes up via the scanner.

So voltage at the ECM B fuse with the fuse removed and the relay in place?
Or fuse in place and relay removed?

(Or both, since I'll be right there?)
Thanks!

This makes sense.
My only confusion is on the identification of the 4 pins. If I unplug the relay, I believe the pins are in a rectangular set-up whereas the drawing you provided has them in a linear set up.

I do recall finding voltage at one of them with the key on.

So looking down at where the relay was removed, from the driver's side fender, who is who?

Thank you!
John

Ah! That takes care of that. Thanks again. Sorry for the ignorance.

Okay! We got it running. The grounds for the computer and other electrical's were rusted and not working. 218,000 miles in New England does that, sadly.

Thanks for the great information. We have printed it all up and tucked it away for future reference.

John

Fuel pump just stopped took it out of the tank check the connections an no power, checked the relay & fuses all good, have power at the relay, tryed another relay an still no power at the pump, what am I missing?

Engine turns over but will not start. Did not hear fuel pump running when ignition is only in on position. Checked fuses and fuel pump relay. Can hear the fuel pump relay click when the ECM B fuse is inserted with the ignition in the on position. Replaced fuel pump. Still behaves the same way.

I completely forgot to go in here and update this post after I fixed the problem. I was going through some old e-mail and saw where I had signed up for this forum and realized that I never updated it. So here goes. Over a year later. However, the problem was fixed in a few days! I had taken the bed off of the truck to make it easier to change the fuel pump. After replacing the fuel pump I tried to start the truck. No luck, same as before. Getting to the point of giving up. I went ahead and put the truck bed back on again. I just happened to be sitting in the drivers seat just wondering what in the world could be wrong when I reached down and for some reason just turned the key. It started! The only thing I can figure is that there was a ground wire that needed to be connected that wasn't when the bed had been off. But anyway, the new fuel pump did fix the problem and the truck has run great this past year.

After a large snow fall, my pickup wold not start, it would turn over but it would not start. My fuel pump seemed not to start. It normally makes a winding sound when I first turn the key on. I checked the fuses(2 of them) I checked the relay and swapped out the horn relay. They both work. I then purchased a new fuel pump, but had to replace the harness because the new pump had a different connector. It came with a harness.
I plugged in the new pump but still dosen't sound like it is running. I tested the old pump the same way before I changed the harness. How can I check the pump electronicly and what else can I check before I install the tank.

Where is the fuel pump relay? Engine is not getting fuel somehow and I am troubleshooting. Plenty of battery just won't turn over. Thank you