* Under the hood in the underhood fuse block: This is the most common location. The fuse block is typically located near the battery, often on the driver's side fender. The relay itself might be labeled, or you'll need to consult your owner's manual or a wiring diagram to identify it.
* Inside the passenger compartment fuse block: Less common, but possible. This fuse box is usually located under the dashboard, often on the driver's side. Again, you'll need to consult your owner's manual or a wiring diagram.
To find it definitively:
1. Consult your owner's manual: This is the best starting point. It should have a diagram showing the location of all fuses and relays.
2. Use a wiring diagram: A wiring diagram specific to your 1992 Chevy G20's engine and options will pinpoint the relay. You can find these online through auto parts websites or repair manuals.
3. Look for labels: Once you've located the fuse boxes, carefully examine the relays. Some might be labeled "Fuel Pump" or have a similar designation.
Remember to turn off the ignition before attempting to access or check any fuses or relays. If you're not comfortable working with automotive electrical systems, it's best to take your vehicle to a qualified mechanic.
