To disable the fuel pump:
* Locate the fuel pump relay: This is usually found in the underhood fuse box, but its exact location varies slightly depending on engine and options. Your owner's manual should have a diagram of the fuse box showing the relay locations. The relay will be labeled, often simply "Fuel Pump." Removing the relay will disable the pump.
* Disconnect the battery's negative (-) terminal: This is the simplest and safest method, although it will cut power to everything in the vehicle.
Important Considerations:
* Safety: Working with electrical systems can be dangerous. If you are not comfortable working on your vehicle's electrical system, it is best to consult a qualified mechanic.
* Relay location: The relay location can vary, so consulting your owner's manual is critical. Online resources like forums dedicated to S10s can also be helpful in finding pictures of the fuse box layout specific to your year and engine.
Attempting to find or install a separate cutoff switch will require significant modification of the vehicle's wiring and could potentially void any existing warranties or create safety hazards if done incorrectly. Sticking with disconnecting the relay or battery is the safest approach.
