You have two fuel pumps, one external, and one internal.
The external one is on the driver's side frame near the front of the truck.

First, listen for the pump when you switch on the ignition.
If you hear nothing, you probably have a bad relay. Replace it and try again.

If you hear a pump run for a few seconds, you know at least one of them is working. Crawl under the truck and disconnect the wire to the external pump. Then listen for pump noise again, when you switch on the ignition. If you hear a pump, your in-tank pump is working. If not, then it or the wiring to it is bad.

If you hear the in-tank pump, then reconnect the external pump and have someone else switch the ignition while you listen from under the truck, so you can tell if both are working.

If both are working, then you may have a clogged filter, or some other problem.

Good Luck!




Winford