2007 Ford Expedition Fuel Pump Fuse Location: A Complete Owner’s Guide

If you drive a 2007 Ford Expedition with the 5.4L V8 engine and you're dealing with a no-start condition, sudden stalling, or a fuel pump that won't kick on, the first thing you need to check is the fuel pump fuse. The fuel pump fuse on a 2007 Ford Expedition is located in the under-hood Battery Junction Box (BJB), and it is a 20-amp fuse positioned in slot number 32 on the fuse box diagram. This fuse is critical because it protects the electrical circuit that powers the fuel pump relay and, ultimately, the fuel pump itself. If this fuse is blown, your Expedition will crank but won't start, leaving you stranded. In this guide, we'll walk you through everything you need to know about locating, testing, and replacing the fuel pump fuse, as well as what to do if the fuse isn't the problem.

Understanding the 2007 Ford Expedition Fuse Box Layout

The 2007 Ford Expedition has two main fuse boxes: one under the hood and one inside the cabin. The under-hood fuse box is called the Battery Junction Box (BJB), and it is located in the engine compartment, typically near the battery on the driver's side. The interior fuse box, known as the Smart Junction Box (SJB), is located beneath the dashboard on the driver's side, near the brake pedal.

The fuel pump fuse is not in the interior fuse box—it lives in the under-hood Battery Junction Box. This is an important distinction because many owners waste time searching the cabin fuse panel first.

Where Exactly Is the Fuel Pump Fuse Located?

To access the fuel pump fuse on your 2007 Ford Expedition, follow these simple steps:

Step 1: Open the hood and locate the Battery Junction Box. It's a black plastic box usually positioned near the battery, on the driver's side of the engine bay. The cover is secured with clips or a latch.

Step 2: Remove the fuse box cover. Once the cover is off, flip it over. On the inside of the cover, there is a diagram that identifies each fuse and relay. Look for fuse number 32—this is the 20-amp fuse designated for the fuel pump.

Step 3: Use the fuse puller. The fuse box cover typically includes a small plastic fuse puller tool. Use it to grip the fuse and pull it straight out. A healthy fuse will have a continuous metal strip inside; a blown fuse will show a visible break or a dark, charred appearance.

Step 4: Replace the fuse with an identical 20-amp fuse. Never use a higher or lower amperage fuse, as this can lead to electrical damage or even a fire hazard.

How to Test Whether the Fuel Pump Fuse Is Actually Blown

Visual inspection is the quickest method, but sometimes a fuse can look fine and still be faulty. Here's how to test it properly using a digital multimeter:

  1. Set your multimeter to the continuity or ohms setting.
  2. Place the probes on the two small metal test points on top of the fuse. If you get a reading of about 0.2 ohms or less, the fuse is good. If the meter reads "OL" (Open Loop), the fuse is blown.
  3. Alternatively, you can test for voltage. With the ignition in the "on" position, probe both test points. If you have battery voltage on one side but not the other, the fuse is blown or the socket has a poor connection.

What Else Lives in the Battery Junction Box?

The under-hood fuse box doesn't just house the fuel pump fuse. It contains several other important fuses and relays that control critical engine systems. According to the fuse box diagram, the under-hood box includes the Powertrain Control Module (PCM) relay, the fuel pump relay, the starter relay, and fuses for the ABS system, radiator fan, and more.

For the 2007 Ford Expedition specifically, the fuel pump relay is located inside the Battery Junction Box under the hood. This is a plug-in style relay, which means you can swap it out easily if you suspect it's faulty.

Important: The Fuel Pump Relay on 2007 Models

On the 2007-2008 Ford Expedition, the fuel pump relay is a standard plug-in component located in the passenger compartment fuse box, according to some sources, while others indicate it is in the under-hood box. This discrepancy is worth noting because it can affect your troubleshooting approach.

Here's what you need to know:

For 2007-2008 models: The fuel pump relay is generally in the passenger compartment fuse box, though the fuse itself remains in the under-hood Battery Junction Box.

For 2003-2006 models: The fuel pump relay is soldered onto the circuit board inside the Central Junction Box, which is a known design flaw. If the relay fails, it often burns the circuit board, causing intermittent stalling or a complete no-start condition.

If your 2007 Expedition is experiencing fuel pump-related issues, check the fuse first, then test the relay. A relay is a small, inexpensive electrical switch, while the fuel pump is a more expensive mechanical part inside the fuel tank. It's wise to diagnose the relay first, as it's a much cheaper fix.

Symptoms of a Blown Fuel Pump Fuse

How do you know if the fuel pump fuse is your problem? Here are the most common symptoms:

  1. The engine cranks but won't start. This is the classic sign. If the fuel pump isn't getting power, no fuel reaches the injectors, and the engine can't fire.
  2. The check engine light may illuminate. A P0231 code (fuel pump secondary circuit low) is often triggered when the fuel pump circuit has an electrical fault.
  3. You hear no fuel pump priming sound. When you turn the key to the "on" position without starting the engine, you should hear a brief 2-second hum from the rear of the vehicle near the fuel tank. If you don't hear it, the fuel pump may not be receiving power.
  4. The vehicle stalls while driving. If the fuse blows while you're on the road, the engine will suddenly lose power and shut off. This is extremely dangerous at highway speeds.

What to Do If the Fuse Keeps Blowing

If you replace the fuel pump fuse and it blows again immediately, you have a deeper electrical problem. A fuse doesn't blow without a reason. Here's a systematic approach to diagnosing the root cause:

  1. Check for a short to ground. Disconnect the fuel pump electrical connector and check for continuity to the chassis ground on the wiring harness side. A resistance near zero ohms confirms a short.
  2. Inspect the wiring harness. Look for frayed wires, melted insulation, or damage in the wiring that runs from the fuse box to the fuel pump. This wiring runs along the frame and is susceptible to wear and tear.
  3. Test the fuel pump itself. A failing fuel pump can draw too much current, which can burn out the fuse or the relay. The OEM part numbers for the 2007-2008 Ford Expedition 5.4L fuel pump are 7L1Z9H307B and 8L1Z9H307A.
  4. Check the inertia switch. This safety device is designed to cut power to the fuel pump in a collision. It can sometimes be tripped by a hard bump. It's located in the passenger footwell area. If the button on top is popped up, push it back down to reset it.

How Much Does It Cost to Replace a Fuel Pump?

If you've confirmed that the fuse, relay, and wiring are all good, but the fuel pump still isn't working, the pump itself may need to be replaced. The fuel pump on a 2007 Ford Expedition is an electric pump located inside the fuel tank.

The cost to replace the fuel pump typically ranges between $245 and $922 depending on your location and labor rates. Here's a breakdown of what you can expect:

  • Fuel pump assembly parts: $150-$400 depending on whether you choose OEM or aftermarket.
  • Labor costs: $100-$300 depending on the shop and whether they drop the fuel tank or access the pump through the interior.

Replacing the fuel pump is not a beginner-level DIY job. It requires either dropping the fuel tank or removing interior panels to access the pump module from the cargo area. Always disconnect the negative battery cable before starting any fuel system work, and work in a well-ventilated area with a fire extinguisher nearby.

Why You Should Consider a KEMSO Fuel Pump

If your 2007 Ford Expedition's fuel pump needs to be replaced, you want a part that's reliable, durable, and won't break the bank. That's where KEMSO Fuel Pumps come in.

KEMSO is a leading aftermarket fuel pump brand trusted by car, motorcycle, ATV, and UTV owners across the United States. Here's why KEMSO stands out:

  1. High-Performance Build: KEMSO fuel pumps are engineered to deliver consistent fuel pressure and flow, ensuring your engine runs smoothly under all driving conditions. Designed as OEM replacement units, they match or exceed the specifications of your original factory pump.

  2. Lifetime Warranty: Every KEMSO fuel pump comes with a lifetime warranty. This means you only buy once, and KEMSO stands behind their product for as long as you own your vehicle.

  3. Proven Track Record: KEMSO is considered the #1 aftermarket fuel pump brand in the US, with a reputation for quality and reliability backed by thousands of satisfied customers.

Whether you need a fuel pump for your 2007 Ford Expedition, a motorcycle, an ATV, or any other vehicle, KEMSO has you covered. Their product lineup includes pumps for popular models like the BMW R1200GS, Kawasaki Jet Ski Ultra, Subaru Impreza, and many more.

Visit KEMSO today at https://www.kemsoracing.com/ to find the right fuel pump for your vehicle. With high-performance engineering, OEM-level quality, and a lifetime warranty, KEMSO gives you peace of mind every time you turn the key.

Final Thoughts on the 2007 Ford Expedition Fuel Pump Fuse

To summarize: the fuel pump fuse on a 2007 Ford Expedition is a 20-amp fuse in slot 32 of the under-hood Battery Junction Box. If your Expedition won't start, check this fuse first—it's the easiest and cheapest potential fix. If the fuse is fine, move on to testing the fuel pump relay, the inertia switch, and finally the fuel pump itself.

Remember these key takeaways:

1. Always replace a blown fuse with the same amperage rating. Never upgrade to a higher amp fuse, as this can cause wiring damage or a fire.

2. If the fuse blows repeatedly, you have a short circuit or a failing component. Diagnose the root cause before simply replacing the fuse again.

3. The fuel pump relay on the 2007 model is a plug-in component, but on 2003-2006 models it's soldered to the fuse box board—a known design flaw.

4. If the fuel pump itself is bad, replacement costs range from $245 to $922, and the job requires either dropping the fuel tank or accessing the pump through the interior.

5. When it's time to replace the fuel pump, choose a high-quality aftermarket brand like KEMSO. With lifetime warranty coverage and performance that matches OEM specs, it's a smart investment for the long haul.

We hope this guide has helped you locate and troubleshoot the fuel pump fuse on your 2007 Ford Expedition. If you need a replacement fuel pump, don't forget to check out KEMSO at https://www.kemsoracing.com/ — your one-stop shop for reliable, high-performance fuel pumps backed by a lifetime warranty.


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