* Under the hood in the fuse box: This is the most common location. The fuse box is typically located either near the battery or on the driver's side fender. Check the fuse box cover; it should have a diagram showing the relay positions. The relay might be labeled "Fuel Pump" or something similar.
* Under the dash: Less common but possible. Look for a fuse box or relay panel under the dashboard, often near the steering column.
To find it definitively:
1. Consult your owner's manual: This is your best resource. The manual should have a diagram showing the location of all fuses and relays.
2. Check online resources: Search for "1995 Chevy G20 fuel pump relay location" along with your specific engine size (e.g., "5.7L") to find forums or repair sites with pictures from other owners.
3. Use a multimeter: If you're comfortable working with basic electrical tools, you can use a multimeter to test the continuity of the fuel pump circuit. Trace the wires from the fuel pump to find the relay. Caution: Be careful when working with car electronics, disconnect the negative battery terminal before starting.
Without more specific information (engine size and trim level), providing a precise location is impossible. Remember to always consult your owner's manual first.