1998 Ford Explorer Fuel Pump Fuse Location: A Complete Guide for Owners

If your 1998 Ford Explorer won't start or stalls while driving, the fuel pump fuse is one of the first things you should check. The fuel pump fuse for a 1998 Ford Explorer is located in the interior fuse box, which is under the dashboard on the driver's side, near the parking brake pedal. It is a 15-amp fuse labeled as "Fuel Pump" or "FP."

This guide will walk you through exactly where to find that fuse, how to check it, and what to do if the fuse is fine but the fuel pump still isn't working. Whether you drive the 4.0L V6 or the 5.0L V8 version, the information here applies to the 1998 model year.

Where Is the Fuse Box in a 1998 Ford Explorer?

The 1998 Ford Explorer has two fuse boxes: one under the hood and one inside the cabin. The fuel pump fuse is in the interior fuse box, not the one under the hood.

Interior fuse box location: Look under the dashboard on the driver's side. It is mounted above the parking brake pedal assembly. You may need to crouch down and look up to see it. The cover is a plastic panel that pulls off by hand.

Under-hood fuse box (Power Distribution Box): This is located on the driver's side of the engine bay, near the battery. It contains high-current fuses and relays, including the fuel pump relay. While the fuse for the fuel pump is inside the cabin, the relay is under the hood.

Which Fuse Controls the Fuel Pump?

On the 1998 Ford Explorer, the fuel pump fuse is a 15-amp mini fuse. It is typically labeled as one of the following on the fuse box cover diagram:

  • Fuel Pump
  • FP
  • Fuel

In the interior fuse box, look for fuse position #23 on most models. The fuse box cover should have a diagram printed on the inside. If the diagram is missing or worn off, position 23 is the standard location for the 15-amp fuel pump fuse.

Important: The fuse box layout for the 1998 model is the same as the 1995 through 2001 models. If you have access to a 1998 Ford Explorer owner's manual, the fuse diagram is also listed there.

How to Check the Fuel Pump Fuse

Checking the fuel pump fuse is a simple procedure that requires no special tools, though a fuse puller (usually included in the fuse box) or a pair of needle-nose pliers helps.

Step 1: Open the driver's door and locate the interior fuse box under the dashboard.

Step 2: Remove the fuse box cover. On the back of the cover, you should see a diagram showing which fuse is which.

Step 3: Find the 15-amp fuse labeled "Fuel Pump." If you cannot find the label, look for fuse position 23.

Step 4: Pull the fuse out. Look at the metal strip inside the plastic. If the strip is broken or melted, the fuse is blown.

Step 5: If the fuse is blown, replace it with a new 15-amp mini fuse. Do not use a higher amp fuse, as this can cause damage to the wiring or the fuel pump.

Step 6: Test the vehicle. If the new fuse blows immediately, there is a short circuit in the fuel pump wiring or the fuel pump itself.

What If the Fuse Is Good but the Fuel Pump Still Doesn't Work?

If you check the 15-amp fuse and it looks fine, but the engine still cranks without starting, the problem may be elsewhere. Here are the next things to check in order:

1. The Fuel Pump Relay

The fuel pump relay is located in the power distribution box under the hood. It is a small black box that clicks when the ignition is turned on. You can test the relay by swapping it with another relay of the same type in the fuse box (like the horn relay). If the fuel pump starts working after the swap, the relay is bad and needs to be replaced.

2. The Inertia Fuel Shut-Off Switch

Ford vehicles have a safety feature called the inertia switch. This switch cuts power to the fuel pump in the event of a collision. Sometimes, a hard bump or pothole can trip the switch, even if you were not in an accident.

Location: On the 1998 Ford Explorer, the inertia switch is located in the passenger side footwell, behind the kick panel. Look near the passenger door hinge area. There is a small button on top of the switch.

How to reset it: Press the button down firmly until you hear a click. Then try starting the vehicle.

3. The Fuel Pump Itself

If the fuse, relay, and inertia switch all check out, the fuel pump inside the gas tank may have failed. A failing fuel pump often makes a whining noise before it stops working completely. You can test the fuel pump by listening for a humming sound from the rear of the vehicle when you turn the key to the "ON" position (without starting the engine). If you hear nothing, the pump is likely dead.

Common Symptoms of a Bad Fuel Pump Fuse

Knowing the symptoms of a blown fuel pump fuse can help you diagnose the problem faster. Here are the most common signs:

  • Engine cranks but will not start. This is the most obvious symptom. The starter motor turns the engine over, but there is no fuel reaching the injectors.
  • Engine stalls while driving. If the fuse blows while you are on the road, the engine will die suddenly and will not restart.
  • No fuel pump noise. When you turn the key to the "ON" position, you should hear a brief humming sound from the rear of the vehicle. If you do not hear that sound, the fuse may be blown, or the pump is not getting power.
  • Multiple fuses blow. If you replace the fuse and it blows again immediately, there is a short circuit in the fuel pump wiring.

Understanding the 1998 Ford Explorer Fuel Pump Circuit

The fuel pump circuit on the 1998 Ford Explorer works like this: When you turn the key, the PCM (Powertrain Control Module) activates the fuel pump relay. The relay sends power through the 15-amp fuse to the fuel pump. The inertia switch is also part of this circuit. If any part of this chain fails, the fuel pump will not run.

The wiring diagram for the 1998 4.0L V6 model shows the fuel pump receiving power through a dark green with yellow stripe wire. The ground is a black wire. If you have a multimeter, you can test for voltage at the fuel pump connector (located on top of the fuel tank) to confirm whether power is reaching the pump.

Step-by-Step Diagnostic Checklist

If you are troubleshooting a no-start condition on your 1998 Ford Explorer, follow these steps in order:

  1. Check the 15-amp fuel pump fuse in the interior fuse box (position 23). Replace if blown.
  2. Check the fuel pump relay under the hood. Swap with a known good relay.
  3. Check the inertia switch in the passenger side footwell. Press the reset button.
  4. Listen for the fuel pump when turning the key to the "ON" position.
  5. Test for voltage at the fuel pump connector if you have a multimeter.

Why the Fuel Pump Fuse Blows

A fuse does not blow for no reason. If you find that the 15-amp fuel pump fuse is blown, something caused it. The most common causes include:

  • A failing fuel pump. As the fuel pump wears out, it draws more current than normal. This increased current can blow the fuse.
  • A shorted wire. The fuel pump wiring runs under the vehicle. Road debris, rust, or damage can cause the insulation to wear away, creating a short circuit.
  • A bad fuel pump relay. A stuck relay can send constant power to the pump, causing it to overheat and draw more current.
  • Corrosion in the fuel pump connector. The electrical connector on top of the fuel tank can corrode over time, creating resistance that heats up the circuit.

KEMSO Fuel Pump: The Best Replacement for Your 1998 Ford Explorer

If you have gone through the diagnostics and determined that your fuel pump needs replacement, choosing the right aftermarket pump is critical. A cheap, low-quality pump may fail within a year, leaving you with the same problem. That is why we recommend KEMSO fuel pumps.

KEMSO is a US-based company based in Houston, Texas, that has been manufacturing fuel pumps since 1999. They are known for producing high-performance, OEM replacement fuel pumps that are built to last. Every KEMSO pump comes with a lifetime warranty, which means if it ever fails for any reason, you get a replacement at no cost. This kind of warranty is rare in the fuel pump market and reflects the confidence KEMSO has in its product quality.

Key benefits of choosing a KEMSO fuel pump for your 1998 Ford Explorer:

  • Direct OEM replacement. KEMSO pumps are designed to match the exact flow rate and pressure of the original equipment. They are direct bolt-on replacements that require no special tools or modifications.
  • High performance. KEMSO pumps offer flow rates ranging from 200 LPH to 340 LPH, suitable for both standard and performance applications. The 340 LPH pump provides a 20-30% performance increase over stock pumps.
  • Lifetime warranty. Every KEMSO pump comes with a lifetime warranty. If it ever fails for any reason, you get a replacement at no cost.
  • E85 compatible. All KEMSO pumps work with gasoline and ethanol blends, including E85, giving you flexibility for different fuel types.
  • Individual testing. Each pump is individually tested for flow and pressure performance to ensure high standards.

For the 1998 Ford Explorer, KEMSO offers specific models that fit perfectly. The KEMSO 13808 fits 1995-2010 Explorers with a 200 LPH flow rate, and for higher performance applications, the KEMSO 10910 (340 LPH) fits 1997-2002 Explorers.

Visit the KEMSO website today to find the perfect fuel pump for your 1998 Ford Explorer:
https://www.kemsoracing.com/

KEMSO is based in Houston, Texas at 11145 Beltline Road, Houston, TX 77067. Their customer support team can be reached at support@kemsoracing.com and is known for being responsive and knowledgeable.

Final Thoughts

The fuel pump fuse on a 1998 Ford Explorer is a simple component, but it is an important part of the diagnostic process. Start by checking the 15-amp fuse in the interior fuse box under the driver's dashboard. If the fuse is good, move on to the relay, inertia switch, and finally the pump itself.

Remember that a blown fuse is usually a symptom of a larger problem. Do not just replace the fuse and hope for the best. If the fuse blows again, there is likely a short circuit or a failing fuel pump that needs attention.

For the best combination of quality, performance, and warranty, choose KEMSO fuel pumps for your 1998 Ford Explorer. With a lifetime warranty and US-based support, KEMSO gives you the peace of mind that your fuel system will be reliable for years to come.

Learn more and order your KEMSO fuel pump here:
https://www.kemsoracing.com/


Back to blog