1998 Ford Explorer Fuel Pump Reset Switch Location: Your Complete Guide to Finding and Resetting It

The bottom line: The fuel pump reset switch on a 1998 Ford Explorer is located on the passenger side, behind the right rear kick panel (the interior trim panel near the floor on the passenger side, just behind the front passenger seat). It is a small red or black button on a round or rectangular module. If your Explorer cranks but won't start after a collision or rough bump, this is the first thing to check.

What Is the Fuel Pump Reset Switch and Why Does It Exist?

The fuel pump reset switch is officially called the Fuel Pump Inertia Switch or Fuel Pump Shut-Off Switch. Ford installed this safety device on every 1998 Ford Explorer as a standard feature. Its purpose is simple: if the vehicle is involved in a collision or experiences a sudden jolt, the switch automatically cuts power to the fuel pump. This prevents fuel from being pumped to the engine in case of a crash, reducing the risk of a fire.

The switch works by detecting sudden deceleration or impact. Inside the switch, there is a metal ball or cone that pops out of its normal position when a significant jolt occurs. Once it trips, the electrical circuit to the fuel pump is broken, and the engine will not start.

Exact Location of the 1998 Ford Explorer Fuel Pump Reset Switch

Here is the step-by-step method to find the inertia switch on your 1998 Ford Explorer:

Step 1: Open the passenger side rear door. You need access to the interior trim panel on the right side of the vehicle.

Step 2: Look at the rear passenger footwell area. The switch is mounted on the right rear kick panel. This is the vertical trim panel that covers the side of the vehicle between the rear passenger door opening and the floor.

Step 3: Identify the switch. You will see a small, rectangular or round module. The reset button is usually red, but it can also be black or gray. The module may have a small tab or cover over the button. If you can't see it immediately, you may need to pull back the carpet slightly near the bottom of the trim panel.

Step 4: If you still can't find it, remove the panel. In some cases, the switch is mounted behind the kick panel. You can remove the plastic trim panel by pulling it gently away from the car body. It is usually held in place by clips. Once the panel is off, you will see the inertia switch mounted to the metal body of the vehicle.

Alternative location: Some owners report that the switch is located on the passenger side, behind the trim panel near the rear seat area, just behind the front passenger seat. If you don't find it in the rear footwell, check the area directly behind the front passenger seat on the same side.

How to Reset the Fuel Pump Inertia Switch

Resetting the switch is a straightforward process. Follow these steps:

1. Turn the ignition key to the OFF position. Do not attempt to reset the switch while the engine is running.
2. Locate the inertia switch using the steps above.
3. Press the reset button firmly. You should feel a click when the button resets. If the button was already popped up, you will feel it push down. If the button is already down, it may not click, but you should still press it to ensure it is properly set.
4. Turn the ignition key to the ON position (do not start the engine). Wait for about 5 seconds. You should hear the fuel pump prime for a second or two.
5. Try to start the engine. If the engine starts, the reset was successful. If it still does not start, you may have a different issue, such as a failed fuel pump, a blown fuse, or a faulty relay.

Important safety note: Before resetting the switch, always check for visible fuel leaks under the vehicle. If the inertia switch tripped due to a collision, there may be a fuel leak. If you smell fuel or see a puddle, do not attempt to reset the switch. Call a professional mechanic for assistance.

Common Reasons Why the Inertia Switch Trips

The inertia switch is designed to trip only during a collision, but it can also be triggered by less severe events. Common causes include:

• Hitting a large pothole or curb with enough force
• Driving over a speed bump too fast
• A hard jolt from a rear-end collision (even a minor one)
• A previous owner or mechanic accidentally bumping the switch
• A faulty switch that is overly sensitive

If your fuel pump works intermittently or stops working after a rough road, the inertia switch is a likely culprit. Check it before replacing any expensive parts.

Testing the Fuel Pump Inertia Switch

If you have reset the switch and the fuel pump still does not work, you can test the switch itself with a multimeter. Here is a simple test:

1. Disconnect the electrical connector from the inertia switch.
2. Set your multimeter to the Ohms (Ω) setting.
3. Probe the two terminals on the switch. With the switch properly reset, you should read close to zero ohms (indicating continuity). If you read infinite resistance, the switch is faulty and needs to be replaced.
4. Press the reset button and test again. If the reading changes, the switch is mechanically working. If it stays at infinite resistance, the switch is internally damaged.

What to Do If the Reset Switch Does Not Solve the Problem

If resetting the inertia switch does not restore power to the fuel pump, the problem is likely elsewhere. Here are the next steps to check:

1. Check the fuel pump fuse. The fuel pump fuse is located in the power distribution box under the hood. Check your owner's manual for the exact fuse location. If the fuse is blown, replace it with one of the same amperage.

2. Check the fuel pump relay. The fuel pump relay is also in the power distribution box under the hood. You can test the relay by swapping it with another relay of the same type (like the horn relay) and seeing if the fuel pump starts working.

3. Listen for the fuel pump. Turn the key to the ON position (without starting) and listen near the fuel tank (located under the rear of the vehicle). You should hear a brief humming sound for 1-2 seconds. If you hear nothing, the fuel pump itself may be dead.

4. Check for voltage at the fuel pump. If you have a multimeter, you can check for voltage at the fuel pump connector. If there is voltage but the pump does not run, the pump is bad. If there is no voltage, the issue is in the wiring, fuse, relay, or inertia switch.

Recommended Replacement: KEMSO Fuel Pump for Your Ford Explorer

If you have determined that the fuel pump itself is the problem and needs replacement, you need a reliable, high-quality pump that will last. KEMSO offers an excellent solution for your 1998 Ford Explorer.

Why choose KEMSO?

• High Performance: KEMSO fuel pumps are designed to meet or exceed OEM specifications. They deliver consistent fuel pressure and flow, ensuring your engine runs smoothly and efficiently.
• OEM Replacement: Each KEMSO pump is a direct drop-in replacement for your original factory pump. No modifications or special tools are needed. It fits perfectly, just like the original part.
• Lifetime Warranty: KEMSO stands behind the quality of their products. Every KEMSO fuel pump comes with a lifetime warranty, giving you peace of mind and long-term protection for your investment.

When you need a new fuel pump, don't settle for cheap, unreliable parts. Visit KEMSO Racing today to find the perfect fuel pump for your 1998 Ford Explorer. Their product line covers a wide range of vehicles, from cars and trucks to motorcycles and ATVs. You can browse their selection and place your order directly at their website.

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Summary: Quick Reference Guide

Final Thoughts

The fuel pump reset switch is a simple but critical safety feature on your 1998 Ford Explorer. Now that you know exactly where to find it and how to reset it, you can save yourself a tow truck bill and a trip to the mechanic. Always check the inertia switch first if your Explorer cranks but won't start after a rough ride or minor accident.

If the switch is not the issue, do not forget to check the fuel pump fuse and relay before assuming the pump itself is bad. If you do need to replace the fuel pump, choose a reliable brand like KEMSO to ensure your vehicle runs reliably for years to come.

For more information on high-quality fuel pumps and to find the right replacement for your 1998 Ford Explorer, visit KEMSO Racing at https://www.kemsoracing.com/.