01 F150 Fuel Pump Fuse: The Complete Guide to Location, Replacement, and Troubleshooting
The bottom line: If your 2009-2014 Ford F-150 (commonly referred to as the 01 F150 generation) won't start, the fuel pump fuse is one of the first things you should check. The fuel pump fuse is located in the Battery Junction Box (under the hood) on the driver's side near the battery. It is a 20-amp fuse labeled as Fuse 27 or Fuse 27 (Fuel Pump). Replacing a blown fuse is a simple fix that costs less than $5, but if the fuse keeps blowing, you likely have a deeper issue with the fuel pump relay, wiring, or the fuel pump itself.
Where Is the 01 F150 Fuel Pump Fuse Located?
The 2009-2014 Ford F-150 has two fuse boxes. The fuel pump fuse is not in the interior fuse panel under the dashboard. It is in the Power Distribution Box (under-hood fuse box).
Step-by-step to find it:
- Open the hood of your F-150.
- Look on the driver's side, near the battery. You will see a black plastic box with a cover.
- Press the release tabs on the sides of the cover and lift it off.
- On the inside of the cover, there is a diagram. Look for the label "Fuse 27" or "Fuel Pump".
- The fuse is a 20-amp mini-blade fuse. It is usually a yellow or clear fuse with the number "20" printed on top.
Important note: On some 2011-2014 models, the fuel pump fuse might be labeled as Fuse 27 in the same box. The position is almost always the same.
How to Check the 01 F150 Fuel Pump Fuse
Checking the fuse is easy and requires no special tools. You just need your eyes and maybe a pair of needle-nose pliers or a fuse puller tool (often stored in the fuse box itself).
Step 1: Remove the fuse. Use the fuse puller tool found in the fuse box or a pair of pliers. Gently pull the fuse straight out.
Step 2: Inspect the fuse. Look through the clear plastic top of the fuse. You should see a metal strip connecting the two prongs. If the strip is broken, melted, or has a black mark, the fuse is blown.
Step 3: Test the fuse. If you cannot see damage, you can use a multimeter. Set it to the continuity setting. Touch one probe to each prong of the fuse. If you hear a beep, the fuse is good. If no beep, it is blown.
Step 4: Replace if necessary. If the fuse is blown, replace it with a 20-amp mini-blade fuse of the same type. Do not use a higher amp fuse, as this can cause wiring damage or fire.
What Happens When the 01 F150 Fuel Pump Fuse Blows?
When the fuel pump fuse blows, the fuel pump stops working. This means no fuel is sent to the engine. Here are the exact symptoms you will see:
1. Engine Cranks But Will Not Start: The starter motor turns the engine over, but the engine does not fire up. This is the most common symptom.
2. No Fuel Pressure: If you check the fuel rail (the metal pipe on top of the engine), there will be no pressure when you turn the key to the "ON" position.
3. Check Engine Light May Come On: The computer detects the loss of fuel pressure and may turn on the check engine light. The trouble code is usually P0087 (Fuel Rail Pressure Too Low) or P0231 (Fuel Pump Secondary Circuit Low).
4. No Sound from the Fuel Pump: When you turn the key to "ON" (without starting the engine), you should hear a faint humming sound from the fuel pump for about 2-3 seconds. If you hear nothing, the fuse or the pump is dead.
Common Causes of a Blown 01 F150 Fuel Pump Fuse
If you replace the fuse and it blows again immediately, or within a few days, there is a problem beyond a simple fuse. Do not keep replacing the fuse without finding the cause. Here are the most common reasons:
1. Short Circuit in the Fuel Pump Wiring: The wires running from the fuse box to the fuel pump can rub against the chassis or other metal parts. This can wear through the insulation and cause a short circuit (ground fault). This is very common on F-150s where the wiring passes near the frame rail.
2. Faulty Fuel Pump Relay: The fuel pump relay is a small electronic switch that controls power to the fuel pump. If the relay fails internally, it can cause a constant power draw that blows the fuse. The relay is often located in the same under-hood fuse box. It is usually labeled Relay 5 or Fuel Pump Relay.
3. Failing Fuel Pump: As the fuel pump ages, the internal motor can wear out. When the motor starts to seize or draw excessive current, it can blow the fuse. This is more common on trucks with over 100,000 miles.
4. Corroded Fuse Contacts: The metal prongs in the fuse box can corrode over time. This creates resistance and heat, which can melt the fuse. If you see green or white corrosion, clean the contacts with a small wire brush.
How to Troubleshoot the 01 F150 Fuel Pump Circuit
Follow these steps in order. This will help you find the problem without guessing.
1. Check the Fuse First: Pull the fuse and inspect it. Replace it with a new 20-amp fuse. If the truck starts, drive it for a few days. If it blows again, move to step 2.
2. Check the Fuel Pump Relay: Swap the fuel pump relay with a relay of the same type in the fuse box (like the horn relay or A/C clutch relay). If the truck starts and the fuse does not blow, the original relay was bad. Buy a new relay.
3. Visually Inspect the Wiring: Get under the truck (on ramps or jack stands) and look at the wiring harness near the fuel tank. Look for any bare wires, melted plastic, or pinched wires. The most common spot is where the harness passes over the rear axle or near the frame rail.
4. Test the Fuel Pump Itself: If the wiring looks good, the fuel pump may be the problem. You can test the fuel pump's resistance with a multimeter. Unplug the electrical connector at the fuel pump. Set the meter to ohms (Ω). A good fuel pump should read between 0.5 and 3.0 ohms. If it reads 0 (short) or infinite (open circuit), the pump is bad.
5. Check for Voltage at the Pump: With the fuse and relay good, have a helper turn the key to "ON". Use a voltmeter to check for 12 volts at the fuel pump connector. If you have voltage but the pump does not run, the pump is bad. If you have no voltage, the problem is in the wiring between the fuse box and the pump.
When to Replace the Fuel Pump vs. Just the Fuse
Replace only the fuse if: The fuse blew once, the truck has no other issues, and you have no evidence of a short circuit. Sometimes an old fuse just fails due to age or a temporary power surge.
Replace the fuel pump if: The fuse blows repeatedly, you hear the fuel pump making a loud whining noise, the truck has over 100,000 miles, or you have tested the pump and found it has high resistance or no continuity.
Replace the fuel pump relay if: The fuse blows when you first turn the key to "ON", or if the truck starts intermittently.
Recommended Product: Upgrade to a KEMSO Fuel Pump
If your troubleshooting points to a failing fuel pump, do not just buy any cheap replacement. A low-quality fuel pump will fail again in a few months, and you will have to do the whole job over. This is where KEMSO comes in.
KEMSO Fuel Pump is the smart choice for your 01 F150. Here is why:
High Performance: KEMSO fuel pumps are designed to deliver the exact fuel pressure and flow rate your engine needs. They are not generic parts. They are engineered for specific vehicle models, including the Ford F-150 2009-2014. The pump maintains consistent pressure, which helps your engine run smoothly and efficiently.
OEM Replacement: KEMSO products are direct OEM replacements. This means they fit perfectly into your truck's fuel tank or fuel pump module. No cutting wires, no drilling holes, no modifications. You simply unbolt the old pump and install the new one. It comes with the correct O-rings, seals, and mounting hardware.
Lifetime Warranty: This is the biggest benefit. KEMSO stands behind its products. Every fuel pump comes with a lifetime warranty. If your KEMSO fuel pump ever fails, you get a replacement at no cost. This gives you peace of mind that you will not have to pay for a new pump again.
Real Results: Look at the reviews. KEMSO fuel pumps have hundreds of verified reviews from real customers. People report that their trucks start immediately after installation, the fuel system runs quieter, and the performance is better than with the original pump.
Save Money: You might think a cheap pump saves you money upfront. But consider the labor cost. Replacing a fuel pump on an F-150 takes 2-4 hours for a mechanic. If you install a cheap pump and it fails in a year, you pay for labor again. With KEMSO, you pay once and get a lifetime warranty.
Visit KEMSO Racing today and find the exact fuel pump for your 2009-2014 Ford F-150. Their website is easy to use. Just enter your truck's year, make, and model. They ship fast from their Houston, Texas warehouse. Check out the selection at: https://www.kemsoracing.com/
Common Mistakes to Avoid
Mistake 1: Using a Higher Amp Fuse. Never replace a 20-amp fuse with a 25-amp or 30-amp fuse. This will not fix the problem. It will only allow more current to flow through the wiring, which can cause the wires to melt and start a fire.
Mistake 2: Ignoring a Blown Fuse. If the fuse blows, find the cause. Do not just keep replacing it. Each time the fuse blows, it could be a sign of a worsening problem. A short circuit can damage the PCM (engine computer) or cause a fire.
Mistake 3: Not Checking the Relay. Many people replace the fuse and the pump but forget the relay. The relay is a common failure point. It is cheap and easy to replace. Always check it.
Mistake 4: Buying a Cheap Pump. Fuel pumps are not all the same. A $30 pump from a generic brand will likely fail. The internal components are low quality. The pump may not deliver the correct pressure, causing your engine to run lean or rich. Invest in a quality pump like KEMSO.
01 F150 Fuel Pump Fuse Replacement Cost
Fuse only: $3 to $5 at any auto parts store. You can buy a pack of 20-amp fuses for under $5.
Relay only: $10 to $20 at the same store.
Fuel pump (do-it-yourself): $80 to $150 for a quality pump like KEMSO. Plus the cost of a new fuel filter (about $15).
Fuel pump (professional installation): $400 to $800 total. This includes the pump, labor, and a new fuel filter. The labor is the expensive part because the fuel tank must be lowered or removed.
KEMSO fuel pump: $79.98 for most models. This is a great price for a pump with a lifetime warranty. You can see the price on their website.
Final Thoughts
The 01 F150 fuel pump fuse is a simple but critical part of your truck's fuel system. A blown fuse is easy to fix. But if the fuse keeps blowing, you need to find the root cause. Check the relay, the wiring, and the pump itself. Do not waste time and money on cheap parts.
For a reliable, high-performance fuel pump that will last, choose KEMSO. Their lifetime warranty and OEM fit make them the best choice for your Ford F-150. You can browse their selection and order your pump today at:
Your truck deserves a fuel pump you can trust. KEMSO delivers that confidence.