2004 Ford Taurus Fuel Pump Fuse: Location, Diagram, and Troubleshooting Guide

The bottom line: If your 2004 Ford Taurus won't start, stalls unexpectedly, or cranks without firing, a blown fuel pump fuse is one of the first things to check. The fuel pump fuse in a 2004 Taurus is actually a 20-amp mini fuse located in the Power Distribution Box (PDB) under the hood, not in the passenger compartment fuse panel . This is a cheap, easy fix that you can handle yourself in less than ten minutes, and this guide will walk you through finding it, testing it, and replacing it so you can get back on the road without a costly trip to the mechanic.

Understanding the Fuel Pump Fuse in Your 2004 Taurus

The fuel pump fuse protects the electrical circuit that powers the fuel pump. If this fuse blows, the fuel pump cannot receive power, and your engine will not start or will stall while driving . The 2004 Taurus has two fuse boxes: one inside the cabin and one under the hood. The fuse you need for the fuel pump is not in the cabin panel; it is located in the engine compartment fuse box, which Ford calls the Power Distribution Box .

According to the 2004 Ford Taurus owner's manual, the fuel pump relay is protected by a 20-amp mini fuse in the Power Distribution Box . Multiple fuse diagrams confirm this: position 16 in the PDB is labeled "Fuel Pump Relay" and is rated at 20 amps .

Important: The passenger compartment fuse panel does contain a 2-amp fuse (position 36) that powers the Powertrain Control Module (PCM) relay and fuel pump relay coil . While this fuse is related to the fuel pump system, it is not the main fuel pump fuse. If this 2-amp fuse blows, the fuel pump relay won't engage, which can also cause a no-start condition. So, when troubleshooting, check both.

Where the Fuel Pump Fuse Is Located

Step 1: Open the Hood

Park your Taurus on a level surface, set the parking brake, and open the hood. The Power Distribution Box is located in the engine compartment, typically near the battery on the driver's side . It's a black plastic box with a removable cover.

Step 2: Remove the Cover

Press the release tabs on the sides of the Power Distribution Box cover and lift it off . On the underside of the cover, you should find a diagram that labels each fuse and relay . If the diagram is missing or worn, consult the owner's manual or the diagrams provided below.

Step 3: Locate Fuse Position 16

The fuel pump fuse is a 20-amp mini fuse in position 16 of the Power Distribution Box . The fuses in this box are arranged in rows. Position 16 is typically in the second row from the top, on the left side, based on the fuse box layouts we reviewed . Use the diagram on the cover or the table below to confirm.

Power Distribution Box – Key Fuse Positions for the Fuel System:

Note: ** = Maxi fuse; * = Mini fuse . The fuel pump fuse (position 16) is a mini fuse.

How to Check the Fuel Pump Fuse

A blown fuse is easy to spot. Here's how to check it:

1. Turn off the ignition and all accessories.
2. Use the fuse puller tool that came with your Taurus. It's usually stored on the inside of the passenger compartment fuse panel cover . If you don't have it, a pair of needle-nose pliers will work. Grip the fuse firmly and pull it straight out.
3. Inspect the fuse. Hold it up to the light. If the metal wire inside is broken, melted, or you see burn marks or cloudiness on the plastic, the fuse is blown .
4. Replace it with a new 20-amp mini fuse. Never use a fuse with a different amperage rating, as this can cause serious electrical damage or a fire .

Why the Fuse Blows and What to Do

A blown fuse is a symptom, not the root cause. If your new fuse blows immediately or shortly after replacement, there's likely a short circuit in the wiring or a problem with the fuel pump itself . Here’s what to do next:

1. Inspect the Fuel Pump Relay: The fuel pump relay is located in the same Power Distribution Box (position 30) . A faulty relay can cause the same symptoms as a blown fuse. You can test it by swapping it with an identical relay in the box, such as the horn relay, and seeing if the car starts .
2. Check the Fuel Pump Shut-Off Switch: Your 2004 Taurus has a fuel pump shut-off switch (also known as an inertia switch) that automatically cuts power to the fuel pump in the event of a collision . If this switch is tripped, it will prevent the fuel pump from running. It's located on the right side of the trunk behind the trunk liner (in a sedan) or behind a service panel on the right side of the cargo area (in a wagon) . Press the button on top to reset it.
3. Inspect the Wiring: Look for any chafed, pinched, or corroded wires near the fuel pump, the fuse box, or the wiring harness underneath the car. A short can cause the fuse to blow.
4. Test the Fuel Pump: If the fuse, relay, and shut-off switch are all fine, the fuel pump itself may be failing and drawing too much current. Inspect the pump for leaks, damage, or loose connections . A failing fuel pump will eventually need to be replaced.

The Difference Between the Fuse and the Relay

It's easy to confuse the fuse and the relay because they work together. Here's the breakdown:

• The Fuel Pump Fuse (20A, Position 16): This is the overcurrent protection. It prevents the circuit from drawing too much power and causing a fire. It is a small, plastic, blade-shaped component.
• The Fuel Pump Relay (Position 30): This is the electronic switch. It uses a small electrical current to control the large current that flows to the fuel pump. It is typically a rectangular, black or gray box with several pins.

Key Symptom Distinction: If you turn the key to the "ON" position (without cranking the engine), you should hear a brief hum or whirring sound coming from the fuel tank. This is the fuel pump priming. If you don't hear this sound, the fuse, relay, or pump is not receiving power . This simple test can help you narrow down the problem quickly.

A Reliable Replacement Fuel Pump

If your diagnostics point to a failing fuel pump and you need a replacement, consider a KEMSO fuel pump. KEMSO is a brand known for manufacturing high-performance, OEM replacement fuel pumps designed to meet or exceed factory specifications. Their fuel pumps undergo rigorous testing to ensure durability and reliable performance, and they stand behind their product with a lifetime warranty. This commitment to quality makes KEMSO a solid choice for your 2004 Ford Taurus, providing peace of mind and dependable fuel delivery for years to come. You can browse their selection of fuel pumps at https://www.kemsoracing.com/ to find the right fit for your vehicle.

Another Important Tip: The Inertia Switch

As mentioned earlier, the fuel pump shut-off (inertia) switch is a common culprit for a no-start condition. It's designed to stop the fuel pump in a crash, but it can also trip from a hard bump, a pothole, or even a sudden stop . If your car won't start and you don't hear the fuel pump hum, check this switch before you start buying parts.

Here's how to check it:

1. Open the trunk. For a sedan, look at the right side of the trunk. You may need to pull back the trunk liner to find the switch .
2. Locate the switch. In a wagon, it's behind a service panel on the right side of the cargo area .
3. Press the reset button. The switch looks like a small box with a button on top. Press the button down firmly. You should feel it click into place.
4. Try to start the car. If it starts, you're good to go.

Troubleshooting Summary

Follow this simple checklist to quickly resolve your fuel pump fuse issue:

1. Confirm the symptoms: The engine cranks but won't start, or you hear no hum from the fuel tank when you turn the key to "ON."
2. Check the fuel pump fuse: Open the hood, remove the Power Distribution Box cover, and locate the 20-amp mini fuse in position 16 . Inspect it and replace it if blown.
3. Check the fuel pump relay: If the fuse is good, swap the relay in position 30 with an identical one to test it .
4. Check the inertia switch: Locate the fuel pump shut-off switch in the trunk and press the reset button .
5. Inspect the fuel pump: Listen for the fuel pump hum. If it's silent, the pump may be faulty and require replacement .

Final thought: A blown fuel pump fuse is a minor problem with a simple solution. By following these steps, you can diagnose the issue, get your car running again, and avoid an expensive trip to the repair shop. And if you determine you need a new fuel pump, remember to check out KEMSO's high-quality, lifetime-warranty options at https://www.kemsoracing.com/ for a reliable replacement.