Fuel Pump Fuse Chevy Silverado: Complete Guide to Location, Troubleshooting, and Replacement

If your Chevy Silverado won't start or stalls while driving, the fuel pump fuse is one of the first things to check. On most Chevrolet Silverado models, the fuel pump fuse is located in the engine compartment fuse block (under-hood fuse box), though the exact position and fuse rating vary by model year and generation. For 2014-2018 Silverado models, the fuel pump fuse is typically Fuse 18 (20-amp mini fuse) in the under-hood fuse box . For 2009 models, it is Fuse 20 (20-amp) in the same location . Older models like the 1995 and 2000 Silverado also place the fuel pump fuse in the under-hood fuse box, usually labeled "FUEL PUMP" or "ECM B" . Before replacing any parts, always check the fuse first—it is the simplest and cheapest fix for a fuel delivery problem.

Where to Find the Fuel Pump Fuse on Your Chevy Silverado

The fuel pump fuse location depends on your Silverado's model year. Here is a breakdown by generation:

For 2014-2018 Silverado (K2XX Generation): The fuel pump fuse is Fuse 18 in the engine compartment fuse block. It is a 20-amp mini fuse. The fuse block is located on the passenger side of the engine compartment for 1500 models and on the driver side for 2500/3500 models . There is also a Fuel Pump 2 fuse (Fuse 41) and a Fuel Pump Power Module fuse (Fuse 21) in the same fuse block .

For 2009 Silverado (GMT900 Generation): The fuel pump fuse is Fuse 20 (20-amp) in the under-hood fuse block. It is listed as "Fuel Pump" in the fuse box diagram .

For 1995-2000 Silverado: The fuel pump fuse is in the under-hood fuse box, typically labeled as "FUEL PUMP" or "ECM B." It is usually a 15-amp or 20-amp fuse. For the 1995 model, it is commonly Fuse 20 (15-amp, blue) .

For 2019-2026 Silverado 4500HD/5500HD/6500HD: The fuel pump fuse is Fuse 44 (labeled "Fuel Pump/Spare") in the engine compartment fuse block .

Important: Always consult the diagram on the fuse box cover or your owner's manual for the exact location. The labeling can vary between trims and engine options .

How to Check and Replace the Fuel Pump Fuse

Step 1: Locate the fuse box. For most Silverado models, the engine compartment fuse block is near the battery. Lift the cover to access the fuses and relays .

Step 2: Identify the fuel pump fuse. Look for the diagram on the underside of the fuse box cover. It should list the fuel pump fuse position. If the diagram is missing or worn, refer to the owner's manual or the online resources listed above.

Step 3: Inspect the fuse. Use a fuse puller (often stored in the instrument panel fuse block) or needle-nose pliers to remove the fuse. Hold it up to the light to check for a broken metal filament. A blown fuse will have a visible gap or dark discoloration .

Step 4: Test with a multimeter (optional but recommended). Set the multimeter to continuity mode. Touch the probes to both metal prongs of the fuse. A reading of zero or near zero ohms means the fuse is good. Infinite resistance means it is blown .

Step 5: Replace with the correct amperage. Always replace a blown fuse with one of the exact same amperage rating. Never use a higher-rated fuse, as it can cause wiring damage or fire . The fuel pump fuse is typically 15-20 amps, but verify your specific model.

Step 6: Reinstall the fuse and test. Insert the new fuse firmly. Start the engine and listen for the fuel pump to prime (a brief humming sound from the fuel tank area). If the pump works, the problem is solved .

What to Do If the New Fuse Blows Immediately

If you replace the fuel pump fuse and it blows again right away, you have an underlying electrical issue. Do not keep replacing fuses without diagnosing the root cause. Here are the most common reasons:

1. Failing fuel pump drawing excess current. A fuel pump that is wearing out can draw more current than normal, causing the fuse to blow. This is especially common on trucks with over 150,000 miles . The pump may be shorted internally.

2. Damaged or corroded wiring. Inspect the wiring harness from the fuse box to the fuel pump. Look for melted insulation, exposed wires, or corrosion at connectors. Moisture and road salt can cause shorts over time .

3. Clogged fuel filter. A severely restricted fuel filter forces the fuel pump to work harder, increasing current draw. Replace the fuel filter as part of routine maintenance .

4. Faulty fuel pump relay. The relay and fuse work together. If the relay is stuck closed or has burnt contacts, it can cause the pump to run continuously or draw excessive current. Try swapping the fuel pump relay with a similar relay (like the horn relay) to test .

5. Bad ground connection. Poor ground connections are a common but overlooked issue. Check the ground wire at the fuel pump assembly and at the chassis. Clean corroded terminals with a wire brush and apply dielectric grease .

Beyond the Fuse: Other Fuel System Components to Check

If the fuse is good but the fuel pump still does not run, the problem may be elsewhere:

Fuel pump relay. The relay supplies power to the fuel pump control module when the ignition is on. In the 2014-2018 Silverado, the fuel pump relay is Relay 59 in the engine compartment fuse block . If the relay fails, the pump gets no power even with a good fuse.

Fuel pump control module. On many Silverado models, the fuel pump control module (also called the fuel pump driver module) regulates power to the pump. It receives power from the ignition main relay. If the module fails, the pump may not run or may run intermittently .

Inertia switch. Some Silverado models have an inertia switch that cuts power to the fuel pump during a collision. It is usually located near the driver-side kick panel. If the switch is tripped, press the reset button .

Wiring and connectors. Use a multimeter to check for voltage at the fuel pump connector while cranking the engine. You should see battery voltage (around 12V) for a few seconds. If no voltage is present, trace the wiring back to the relay and fuse .

Common Fuse Problems on the 2014-2018 Silverado

Based on real-world owner reports, here are common fuse-related issues on the K2XX generation Silverado:

• Fuse 7 (engine bay, 20A) fuel pump fuse failure: Often indicates a failing fuel pump drawing excess current, especially above 150,000 miles .
• Fuse 18 (fuel pump) blowing: Check for a shorted fuel pump or wiring harness damage near the fuel tank .
• Fuse 55 (fuel pump 2) blowing: May indicate a secondary fuel pump issue on trucks equipped with dual pumps .

Why Choose KEMSO Fuel Pump for Your Chevy Silverado

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Summary: Quick Reference Table

Always check your owner's manual for the exact fuse location and rating for your specific model and trim level. If you are unsure, consult a professional mechanic to avoid damage to your vehicle's electrical system. And when you need a replacement fuel pump, trust KEMSO Racing for quality, performance, and a lifetime warranty.

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