Where is the fuel pump relay switch on a 1993 gmc vandura 2500 5.7 liter?

On a 1993 GMC Vandura 2500 with a 5.7-liter engine, the fuel pump relay is typically located in the under-hood fuse box. You can find the fuse box on the driver's side near the battery. Look for a relay labeled for the fuel pump; it may be necessary to consult the owner's manual for the exact relay identification. If you have trouble locating it, checking the wiring diagrams in a service manual can also be helpful.