Where exactly 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-dash fuse box, which is situated on the driver's side of the vehicle, near the steering column. You may need to remove the cover of the fuse box to access the relay. Look for a relay marked for the fuel pump; it may be labeled in the fuse box diagram. If you're having trouble locating it, consult the vehicle's service manual for detailed information.