1. Consult your owner's manual: This is the most reliable source. It will either have a diagram of the fuse box or a specific section detailing the fuel pump relay location.
2. Use a wiring diagram: A wiring diagram for your specific year and engine will show the relay location and its circuit. You can often find these online through repair manuals sites (some are free, others require a purchase).
3. Look for a relay that's likely the fuel pump relay: The relay itself may have a number stamped on it corresponding to a number listed in your owner's manual or a wiring diagram. Even without a specific label, its proximity to other relays related to the engine and fuel system can be a clue.
4. Check online forums: Search online forums specific to 1997 Chevrolet S10s. Other owners may have posted pictures or descriptions of their fuel pump relay location.
Important Note: Before working on your vehicle's electrical system, disconnect the negative battery cable to prevent accidental short circuits.
