* Under the hood in the underhood fuse/relay center: This is the most common location. The fuse/relay center is typically located near the battery or on the driver's side fender. The relay itself might be labeled, but you'll likely need to consult your owner's manual or a wiring diagram to identify the correct relay.
* Inside the cab, under the dashboard: Less common, but possible on some models. This would usually be in a fuse box or relay panel.
To find it definitively:
1. Consult your owner's manual: This is the best starting point. The manual will have diagrams showing the location of fuses and relays.
2. Use a wiring diagram: A wiring diagram specific to your 1995 Chevrolet K1500 (including the engine size and options) will precisely show the relay location and its circuit. You can often find these online through auto parts websites or repair manuals.
3. Look for markings: Once you've located the underhood or underdash fuse/relay center, carefully examine each relay. Some might be labeled "Fuel Pump," "EFI," or have a similar designation.
4. Use a multimeter (advanced): If all else fails, you can use a multimeter to trace the fuel pump circuit to find the relay. This requires some electrical knowledge and caution.
Important Note: Always disconnect the negative battery terminal before working with fuses or relays to avoid electrical shocks.