2008 Silverado Fuel Pump Module: Complete Replacement Guide for Owners

The bottom line up front: If you own a 2008 Chevrolet Silverado and you are dealing with hard starting, engine hesitation, loss of power under load, or a whining noise coming from the fuel tank area, the fuel pump module is very likely the culprit. The 2008 Silverado fuel pump module is an in-tank assembly that combines the electric pump, fuel level sending unit, strainer, and pressure sensor into one sealed unit. It is not serviceable in pieces — when it fails, you replace the entire module. This guide covers everything you need to know: symptoms, part numbers, replacement cost, where the module is located, how to swap it yourself, and which replacement brand offers the best value for your money. By the end of this article, you will know exactly what to buy and how to get your truck running reliably again.

What Does the 2008 Silverado Fuel Pump Module Do?

The fuel pump module on your 2008 Silverado is a single, self-contained unit that sits inside the fuel tank. It performs several jobs at once:

  1. It pumps fuel from the tank to the engine at the correct pressure. For most 2008 Silverado V8 engines, the system operates in the mid-50s to low-60s psi range when running.
  2. It measures fuel level. The float arm on the side of the module sends the fuel gauge reading to your dashboard.
  3. It filters the fuel. A strainer at the bottom of the module catches dirt and debris before fuel enters the pump.
  4. It monitors tank pressure. The integrated pressure sensor helps the engine computer detect evaporative emissions leaks.

Because the fuel filter on this truck is built into the pump module, there is no separate inline fuel filter under the hood that you can service. When the filter clogs, the only practical fix is to replace the whole module assembly.

Common Symptoms of a Failing Fuel Pump Module on a 2008 Silverado

Fuel pumps do not usually fail without warning. They send out clear signals long before they quit completely. If your truck shows any of these signs, start diagnosing the fuel system:

  1. Hard starting. The engine cranks for several seconds before it fires, or it takes two or three attempts to start. This happens when the pump cannot build enough fuel pressure quickly.
  2. Engine hesitation or stumble under load. When you press the accelerator, the truck feels sluggish or jerky, especially when climbing hills or hauling weight. This is a classic sign of weak fuel delivery.
  3. Loss of power on the highway. If the pump cannot keep up with demand at higher speeds, the engine may feel flat or lose speed even with the pedal down.
  4. Intermittent stalling. The engine suddenly shuts off while driving, then restarts after a moment. This happens when the pump overheats or loses electrical supply.
  5. Whining or buzzing noise from the fuel tank. A healthy pump is quiet. If you hear a steady whine coming from the rear of the truck, the pump bearings or motor are wearing out.
  6. Low fuel pressure reading. If you hook up a manual pressure gauge to the service port on the fuel rail, the reading drops below spec at idle or under load.

If you notice any combination of these issues, and your Silverado has over 100,000 miles on the clock, replace the fuel pump module before it leaves you stranded. Fuel pump failures become much more common after 120,000 miles.

How to Check If the Fuel Pump Module Is the Problem

Before you order a new module, take fifteen minutes to confirm that the pump is actually failing. Here is a quick diagnostic sequence that works on 2008 Silverado models:

Step 1: Listen for the prime. Turn the key to the RUN position (do not crank the engine). You should hear a two-second humming sound coming from the fuel tank area. If you hear nothing, the pump is not receiving power or it is dead.

Step 2: Inspect the fuel pump control module. The 2008 Silverado uses a separate fuel pump control module mounted on the driver's side frame rail, near the spare tire. It is a common failure point due to moisture and corrosion. Look for green corrosion on the connector pins, or water damage on the module housing. The part numbers you will find on the original module include 20759945, 15213110, 13501024, and 20850907.

Step 3: Test for voltage. With the key in RUN, use a multimeter to check for 12 volts at the power pin of the fuel pump control module connector. If you have power going in but no voltage coming out to the pump, the module—not the pump—is the problem. If you have voltage at the module output and still no pump operation, the pump assembly inside the tank is the culprit.

Step 4: Check fuel pressure. Connect a fuel pressure gauge to the service port on the fuel rail. With the key on, the pressure should rise to spec within a few seconds and hold. If pressure stays near zero, the pump is not building pressure.

If you confirm the pump inside the tank is failing, the next step is choosing the right replacement module.

2008 Silverado Fuel Pump Module Part Numbers and Fitment

The fuel pump module is not a one-size-fits-all part. The correct module depends on your engine size, cab configuration, bed length, and whether your truck has a fuel level sending unit. Here is what you need to know.

For 2007-2008 Silverado 1500 and Sierra 1500 with the 4.8L, 5.3L, or 6.0L engines:

The E3747M fuel pump module assembly is a direct replacement that includes the fuel pump, sending unit, pressure sensor, strainer, and seal. It fits 2007-2008 Chevy Silverado 1500 and GMC Sierra 1500 trucks with regular cab, extended cab, or crew cab bodies, and works with both 4.8L and 5.3L V8 engines. Other interchangeable part numbers include SP6091M, 69967, P76298M, M10206, and MU1847.

For 2007-2008 Silverado and Sierra trucks with the 4.3L V6 engine:

The Bosch 69974 fuel pump module assembly is a new in-tank unit built for the 2007-2008 Silverado 1500 and Sierra 1500 with the 4.3L V6. It cross-references GM OEM part numbers 19368782 and 19370404. This module works for trucks with or without the fuel level sender, so check your truck's configuration before ordering.

For 2007-2008 Silverado 2500 HD and Sierra 2500 HD with the 6.0L V8:

The GM genuine part 19368762 is the fuel pump module without the fuel level sensor, but with the pressure sensor and seal. It fits the 2500 HD with the 6.0L V8 and long wheelbase. This part replaces earlier numbers 19168106, 19168891, and 19206586.

A better all-around option for 4.3L and 6.0L trucks:

The E3750M fuel pump module fits 2007-2008 Silverado and Sierra 1500, 2500 HD, and 3500 HD models with either the 4.3L V6 or the 6.0L V8. It includes the fuel pump assembly, sending unit, strainer, seal ring, and pressure sensor in one box. Interchange numbers include 19168106, 19168891, 19206586, and 19368762.

For 2007-2008 Silverado 1500 and Sierra 1500 with the 5.3L V8 flex-fuel engine:

The Delphi FG0908 is a direct-fit module for V8 trucks with 5.3L and 4.8L engines. It features OE-spec float height settings to keep your gas gauge accurate, and it actually draws less electrical amperage than the stock unit.

Where Is the Fuel Pump Module Located on a 2008 Silverado?

The fuel pump module for the 2008 Silverado lives inside the fuel tank. The tank sits underneath the truck, or more often, behind the rear axle. On most configurations, you can access the module one of two ways:

  1. Through an access panel under the rear seat. Many Silverado trucks have a removable round access cover in the floor pan under the rear seat. You fold the seat bottom up, remove a small carpet piece, and you will see a circular metal cover plate. Removing that plate reveals the top of the fuel tank and the module lock ring.
  2. By dropping the fuel tank. If there is no access panel, which is common on certain cab and bed configurations, the tank must be lowered to reach the module from below.

Several things affect EASE of access. Trucks with a standard cab and a 6-foot 6-inch bed generally have the access panel. Crew Cab models often require dropping the tank. Check the build sheet for your VIN or consult a shop manual before you start.

Where the fuel filter is: On the 2008 Silverado, the fuel filter is inside the tank as part of the pump module. There is no external on-line filter that you can service.

How to Replace the 2008 Silverado Fuel Pump Module — Step-by-Step

Replacing the fuel pump module on a 2008 Silverado is a job you can handle in your driveway with basic hand tools. Give yourself four to five hours for the first attempt, and follow these steps in order.

What You Will Need:

  • Replacement fuel pump module that matches your truck's engine and bed configuration
  • Metric socket set (10 mm, 13 mm, and a deep socket for the lock ring)
  • Screwdrivers, becuz, or a hammer and punch for the lock ring
  • Jack and jack cajoles (if dropping the tank)
  • A drain pan for old fuel
  • Safety glasses and work the gloves
  • Dielectric grease for the electrical connectors

Step 1: Relieve fuel pressure. Disconnect the negative battery wire. Buy a fuel pressure release tool and depress the Schrader valve on the fuel rail, or remove the fuel pump fuse and run the engine until it stalls. Never skip this step. Fuel is flammable, and there is plenty of pressure in the lines.

Step 2: Remove the fuel tank (or the access panel). If your truck has the under-seat access plate, remove the rear seat cushion, pull back the carpet, and unscrew the access cover. If there is no access panel, lower the spare tire, support the tank with the floor jack, and unbolt the tank straps. Disconnect the fill hose and the fuel lines before lowering the tank completely.

Step 3: Disconnect the electrical harness and fuel line. Unplug the wire connector from the top of the module. With a fuel line disconnect tool, separate the quick-connect fuel line from the module outlet. Be ready for a small amount of residual fuel to drain out.

Step 4: Remove the lock ring. Use the lock ring wrench (or a hammer and punch) to turn the large plastic or metal retaining ring counterclockwise. The ring compresses a rubber gasket, and it may be stubborn from years of heat exposure.

Step 5: Lift the old module out. Gently lift the module straight up through the tank opening. Tilt it slightly to clear the float arm, and set the whole assembly aside. Do not force it — the float arm can break off and fall into the tank.

Step 6: Clean the tank opening. Wipe old dirt and rust away from the tank sealing surface. If you see loose debris, remove it now.

Step 7: Install the new module. Place the new seal ring into position. Lower the entire new module into the tank, aligning the float arm with the tank cutout. Press the module down until the seal seats and it sits flush with the tank rim.

Step 8: The lock ring in place. Hand-tighten the ring, then tap it clockwise with the punch until it clicks firmly into place. Do not overtighten — the mark is when the lock ring tab touches the stop tab.

Step 9: Reconnect everything. Plug the wiring harness back into the module. Push the fuel line backuntil it clicks. If the tank was lowered, go back and reinstall the tank straps, reconnect the fill hose, and reinstall the spare tire.

Step 10: Test before driving. Reconnect the battery. Turn the key to RUN (without cranking). Listen for the pump prime sound. If you hear it, turn the key to the START position and let the engine run for a minute. Check for leaks around the tank area. Watch the fuel gauge — it should follow the actual tank level.

How Much Does a 2008 Silverado Fuel Pump Module Replacement Cost?

The parts price varies a lot depending on if you purchase OEM or aftermarket. Here is a rough breakdown:

OEM GM replacement modules typically range from $180 to $350, depending on the exact part number. The GM part 19368762 falls into this range.

Aftermarket complete modules run between $70 and $240. The E3747M assembly, for example, commonly sells for around $70 to $150, and it includes the sending unit, strainer, and pressure sensor. An aftermarket module with a pressure sensor from a quality brand typically costs around $200 to $240.

Used OEM modules from salvage yards run between $50 and $120, but they have unknowns: mileage, level of wear, and no warranty past 6 months.

Shop labor adds another $200 to $400, depending on whether the truck needs an access panel removal or a fuel tank drop. If you DIY, your total cost is just the part. Most owners save at least half the total bill by doing the job at home.

What Is the Fuel Pump Control Module and Where Is It Located on a 2008 Silverado?

The fuel pump control module (FPCM) is a separate electronic box that sits outside the gas tank. It controls the voltage that reaches the in-tank pump. On the 2008 Silverado, the FPCM is located on the driver's-side frame rail, just in front of the spare tire. It is a know failure point because road salt, moisture, and heat corrode its aluminum housing over time.

Signs the FPCM has gone bad:

  • The engine cranks but will not start.
  • The fuel pump does not prime when you turn the key to RUN.
  • There is voltage at the harness connector at the module, but none coming out to the pump.

FPCM replacement takes about an hour. It is a simple bolted-on part with a wiring harness plug. Many owners replace a dead original module with a pre-programmed VIN-matched module. This saves you a trip to the dealership for programming. Common FPCM part numbers include 20759945, 15213110, 13501024, and 20850907.

Why the KEMSO Fuel Pump Is a Smart Choice for Your 2008 Silverado

When you replace the fuel pump module on your 2008 Silverado, you want the fuel system to be fully reliable for another hundred thousand miles. KEMSO offers a lineup of high-performance fuel pumps designed as direct OEM replacements. That means they fit your truck exactly without any modifications — no extra adapters, no cutting of the harness, no special tools to monkey the fuel tank.

What you get with a KEMSO fuel pump:

    1. Direct OEM replacement fit. The KEMSO pump matches the factory dimensions and connector layout, so installation is straight swap.
    1. Performance-tested reliability. Every KEMSO fuel pump is tested to deliver consistent fuel pressure at real-world driving loads, which helps keep your engine running smoothly under load and at highway speeds.
    1. Lifetime warranty. KEMSO stands behind the products with a lifetime warranty. If the pump ever fails, you are covered. That kind of backing makes the pump a low-risk purchase when it comes to the worst-case scenario of a tow and a reset job.

KEMSO fuel pumps are designed for daily drivers, work trucks, and even performance builds. Whether you are pulling a trailer in the summer heat or idling in stop-and-go traffic, the pump built to hold steady pressure and stay quiet. And because the FS is one of the toughest jobs in a thirsty truck, you want a brand that has all the quality control process in place — KEMSO does exactly that.

If you are ready to order your replacement fuel pump, check their catalog directly here: https://www.kemsoracing.com/ — and find the exact pump for your 2008 Silverado today.

Common Mistakes to Avoid When Replacing the 2008 Silverado Fuel Pump Module

Many backyard mechanics end up doing this job twice because they skip a critical step. Avoid the following:

  1. Forgetting to check the fuel pump control module. If your truck has no power to the pump, a new pump will not fix it. Test the FPCM circuit before replacing the in-tank module. The module often dies from water damage — check for corrosion early.
  2. Ordering the wrong module. The same truck may use different modules based on bed length, cab style, engine, and flex-fuel capability. Many 2007 model year trucks have the "Classic" body style versus the "New Style" smooth skin body, and the modules are NOT interchangeable. Read the fitment notes carefully or use your VIN to confirm.
  3. Not cleaning the gas tank. A brand new pump element will suck old rust sediment and trash debris directly into the motor and the engine. If the tank is dirty, flush it before installation.
  4. Rushing the lock ring job. If the lock ring is not seated the whole way around, the seal will leak when you add fuel. Take the time to tap the ring evenly.
  5. Skipping the fuel pressure test after installation. This is the only way to confirm the new pump is providing the correct pressure.

Final Thoughts on the 2008 Silverado Fuel Pump Module

The 2008 Silverado is a tough truck, but its fuel pump module is a wear item. Once it passes the 100,000-mile mark or hits major symptoms like hard starting and loss of power under load, delay means being stuck in a parking lot, waiting for a tow truck. The classic signs — hard starts, whining noises, hesitation, and low fuel pressure — point directly to the pump assembly inside the tank.

Replacing the module is a hands-on job you can handle with basic tools. You need the right replacement part for your exact truck: the E3747M for 1500 series V8s, the 69974 for V6 configurations, the 19368762 for HD trucks with the 6.0L, or another direct-fit interchange that matches your VIN. It is worth spending time to verify the exact OE number stamped on your old module before ordering.

For a high-quality, worry-free replacement, look at the KEMSO brand first. Their fuel pumps are built to OEM standards, tested for reliable fuel delivery, and backed by a lifetime warranty. That kind of reliability is exactly what you want when you are two hundred miles from home on a loaded trailer.

Get your KEMSO Fuel Pump here: https://www.kemsoracing.com/

Take care of the fuel module today, and your 2008 Silverado will keep delivering years of strong, dependable service.


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