Looking for where the fuel pump relay is 2001 f 250 SD reg cab 2 wd. Won't Start On pump gas , starting fluid yes

 

There are two fuel pump relays. The easiest to access is under the hood, left side by the firewall. I believe it is location 32 (the middle of the 3 larger relays). Location 31 is the washer pump relay, so switching the two is easy. Confirming the operation of the washer pump easy as well.

The 2nd relay is behind your radio. Remove the radio, pop off the black cover and you will find 2 relays. The blue one is for your turn signals. The black one is for the fuel pump. You should be able to feel the relay operate when you turn the vehicle on. The pump is supposed to run 2-3 seconds unless something is wrong.