* Under the hood in the fuse box: This is the most common location. The fuse box itself might be located near the battery, or possibly on the driver's side fender. Check the fuse box diagrams printed inside the lid or in your owner's manual. The relay itself might be labeled, or you might need to cross-reference the diagram to identify it.
* Under the dash: Less common, but possible. The relay might be located within the under-dash fuse panel or a separate relay box.
To find it definitively:
1. Consult your owner's manual: This is the best place to start. The manual should have a diagram showing the location of all relays and fuses.
2. Check online forums and repair manuals: Websites like GM-Trucks.com or other S10 specific forums often have discussions about locating the fuel pump relay for your specific year and engine. A Haynes or Chilton repair manual for your vehicle will also have detailed diagrams.
3. Use a multimeter: If you're comfortable with basic electrical work, you can use a multimeter to trace the circuit from the fuel pump to identify the relay. However, be cautious when working with vehicle electrical systems.
Remember to always disconnect the negative battery terminal before working with any electrical components to avoid short circuits and injury.
