1. Safety First: Disconnect the negative (-) battery terminal. This is crucial to prevent accidental sparks and potential fire.
2. Locate the Fuel Pump Relay: The fuel pump relay's location varies slightly depending on the specific trim level of your Explorer. Consult your owner's manual or an online repair manual (like Chilton or Haynes) for the precise location. It's often in the under-hood fuse box or, less commonly, in the passenger compartment fuse box. The manual will show you a diagram of the fuse box layout. The relay itself is usually a small square or rectangular component.
3. Identify the Fuel Pump Relay: The relay itself might be labeled (sometimes vaguely like "Fuel Pump" or something similar). Your owner's manual is your best guide here. If you're unsure, carefully examine the diagram to see if a relay is designated for the fuel pump or fuel injection system.
4. Remove the Fuel Pump Relay: Carefully remove the fuel pump relay from its socket. You may need to use a small flathead screwdriver or similar tool to pry it slightly if it's sticking. Pay attention to the relay's orientation in the socket so you can put it back correctly.
5. Turn the Ignition Key: Turn the ignition key to the "ON" position (but don't start the engine). The fuel pump will run for a few seconds to purge the pressure. You might hear it whirring.
6. Run the Engine (If Necessary): After you hear the pump stop, you may want to cycle the ignition a couple more times to ensure complete pressure release. In some cases, you might need to crank the engine (without starting it) a couple of times to ensure all residual pressure is gone. This is the least preferred method as it can wear components.
7. Reinstall the Relay: Once you've allowed sufficient time for pressure to dissipate, carefully reinstall the fuel pump relay in its socket.
8. Reconnect the Battery: Reconnect the negative (-) battery terminal.
Important Considerations:
* Safety: Fuel is highly flammable. Work in a well-ventilated area, away from any open flames or sparks.
* Manual: Always refer to your owner's manual for the specific location of the fuel pump relay and any other relevant safety information.
* Professional Help: If you are uncomfortable performing this procedure yourself, take your vehicle to a qualified mechanic.
This method safely relieves fuel pressure without requiring specialized tools. Remember safety is paramount! If you have any doubts, seek professional assistance.
