2019 Silverado Fuel Pump Control Module: Complete Guide to Symptoms, Replacement, and Best Solutions

If you own a 2019 Chevrolet Silverado and are experiencing engine performance issues, the fuel pump control module is likely the culprit. Replace it immediately to avoid being stranded. This module is a critical component that controls fuel delivery to your engine, and when it fails, your truck will show clear warning signs. Based on official GM service bulletins and real-world repair data, the fuel pump driver control module on the 2019 Silverado has a known software error that can trigger diagnostic trouble code P1005 and illuminate the Service Engine Soon (SES) light. The fix is straightforward: replace the module with the updated GM part number, and your truck will be back on the road.

What Is the Fuel Pump Control Module and Why Does It Matter?

The fuel pump control module, also called the fuel pump driver module or fuel pump power control module, is an electronic component that manages your Silverado's fuel pump operation. It controls when the pump starts and stops, monitors fuel pressure, communicates with the engine control module (ECM) to match fuel delivery with engine demand, and performs fault diagnosis and safety strategies.

Without a properly functioning fuel pump control module, your engine cannot get the right amount of fuel at the right pressure. This leads to poor performance, reduced gas mileage, and eventually a no-start condition. The module is mounted externally on the frame rail near the fuel tank on most 2019 Silverado models, making it accessible for replacement without dropping the fuel tank.

Common Symptoms of a Failing Fuel Pump Control Module

When the fuel pump control module starts to fail on your 2019 Silverado, you will notice one or more of these symptoms:

1. Service Engine Soon (SES) Light Illuminates

The most common symptom reported in GM service bulletins is the SES MIL (Malfunction Indicator Lamp) coming on. When a technician checks the vehicle for diagnostic trouble codes, a P1005 code will be set in the ECM. This code specifically points to a software error in the fuel pump driver control module.

2. Engine Cranks But Won't Start

If the module fails completely, the fuel pump will not receive power. You will hear the engine crank normally, but it will not fire up because no fuel is reaching the injectors.

3. Intermittent Starting Issues

Some owners report that their truck starts fine one day but refuses to start the next. This intermittent behavior is a classic sign of an electronic module failure rather than a mechanical fuel pump issue.

4. Hesitation During Acceleration

A failing module may provide inconsistent fuel pressure, causing the engine to hesitate or stumble when you press the gas pedal. This is especially noticeable when merging onto highways or climbing hills.

5. Poor Fuel Economy

When the module cannot regulate fuel pressure properly, the engine may run rich (too much fuel) or lean (too little fuel). Both conditions reduce fuel economy significantly.

6. Whining Noise from the Fuel Tank Area

While this is more commonly associated with a failing fuel pump itself, a faulty control module can cause the pump to run erratically, producing unusual noises.

The Known P1005 Code Issue on 2019 Silverado

According to General Motors official preliminary information bulletin PIT5636D, published on October 17, 2023, the 2019 Silverado 1500 (New Model) is included in the affected vehicles for DTC P1005. The bulletin states that the cause is a software error in the fuel pump driver control module.

GM Engineering has released an updated fuel pump driver control module to correct this concern. The corrected part numbers are:

  • For engines: LV3, L3B, L82, L84, L87, L8T – Part Number 13540028
  • For engines: LM2, L5P – Part Number 13540026

If your 2019 Silverado is still under emission warranty, the replacement is covered. The labor operation code is 4087298, which pays 0.5 hours of labor time for the replacement.

How to Diagnose the Fuel Pump Control Module

Before replacing any parts, you need to confirm that the fuel pump control module is indeed the problem. Here is a step-by-step diagnostic process:

Step 1: Check for Diagnostic Trouble Codes

Use an OBD2 scanner to read any stored codes. If you see P1005, P0498, or U0118, the fuel pump control module is likely the issue. The U0118 code specifically means "Lost Communication with Fuel Pump Control Module," which is common in 2014-2019 Chevrolet Silverado models.

Step 2: Perform a Visual Inspection

Locate the fuel pump control module on the frame rail near the fuel tank. Check for obvious damage, corrosion, loose connectors, or broken wires. Moisture exposure is a common cause of module failure.

Step 3: Test the Module with a Multimeter

If you have basic electrical testing skills, you can use a multimeter to check for power and ground at the module connector. The module should receive battery voltage when the ignition is on.

Step 4: Check Fuel Pressure

Using a fuel pressure gauge connected to the Schrader valve on the fuel rail, check if the pressure meets specifications. For the 2019 Silverado 5.3L engine, fuel pressure should be around 55-62 psi with the engine running.

Replacement Options for the 2019 Silverado Fuel Pump Control Module

You have several options when it comes to replacing the fuel pump control module on your 2019 Silverado:

Option 1: OEM GM Replacement

The safest and most reliable option is to use a genuine GM part. The updated part numbers from the GM service bulletin are 13540028 for most gasoline engines and 13540026 for diesel engines. These parts come with GM's factory warranty and are guaranteed to fit and function correctly.

Option 2: Aftermarket Drop-In Replacement

Several aftermarket manufacturers produce fuel pump control modules that are direct replacements for the OEM part. For example, some aftermarket modules replace OEM part numbers 13540028, 13544060, and 13531875. These are often more affordable than genuine GM parts but may have varying quality and warranty terms.

Option 3: Complete Fuel Pump Module Assembly

Some owners choose to replace the entire fuel pump module assembly, which includes both the pump and the control module. However, this requires dropping the fuel tank and is significantly more labor-intensive. This approach is usually unnecessary if only the control module has failed.

Step-by-Step Replacement Guide

Replacing the fuel pump control module on a 2019 Silverado is a manageable DIY job if you have basic mechanical skills. Here is how to do it:

Tools You Will Need:

  • 8mm and 10mm sockets
  • Ratchet and extension
  • Flathead screwdriver
  • Safety glasses
  • Jack and jack stands (if needed)

Procedure:

  1. Disconnect the negative battery cable. This is crucial for safety and to prevent any electrical shorts.

  2. Locate the module. On most 2019 Silverado models, the fuel pump control module is mounted on the passenger side frame rail, near the rear of the cab and forward of the fuel tank.

  3. Remove the module bracket. Using an 8mm or 10mm socket, remove the bolts that hold the module bracket to the frame.

  4. Disconnect the electrical connectors. Press the retaining tabs and pull the connectors straight out. Be careful not to damage the pins or wiring.

  5. Remove the old module. Slide the module out of its mounting bracket.

  6. Install the new module. Slide the new module into the bracket and secure it with the bolts. Tighten to factory specifications (typically 8-10 ft-lbs).

  7. Reconnect the electrical connectors. Make sure they click firmly into place.

  8. Reconnect the negative battery cable.

  9. Test the system. Turn the ignition to the ON position without starting the engine. You should hear the fuel pump prime for 2-3 seconds. Then start the engine and check for proper operation.

  10. Clear any diagnostic codes. Use your OBD2 scanner to clear the P1005 or any other stored codes.

Repair Costs and Warranty Coverage

The cost to replace the fuel pump control module on a 2019 Silverado varies depending on whether you do it yourself or have a shop perform the work:

  • DIY Parts Cost: An OEM module costs approximately $97-$150, while aftermarket modules range from $50-$100.
  • Professional Installation: Labor costs typically range from $100-$200 for the 0.5-hour job specified in GM's service bulletin.
  • Total Professional Repair: Expect to pay between $200 and $350 for parts and labor.

Warranty Coverage: If your 2019 Silverado is still within the emission warranty period, the repair may be covered at no cost to you. The GM bulletin specifies that warranty coverage codes E and E2 apply to labor operation 4087298. Check your vehicle history through a GM dealer to confirm coverage.

Why Choose KEMSO for Your Fuel Pump Replacement

When it comes time to replace the fuel pump control module or the entire fuel pump assembly on your 2019 Silverado, quality matters. A low-quality aftermarket part may fail prematurely, leaving you stranded and costing more in the long run.

KEMSO Racing offers high-performance fuel pump products that are designed as OEM replacements, meaning they match the original equipment specifications exactly. Every KEMSO fuel pump product comes with a lifetime warranty, giving you peace of mind that your investment is protected for as long as you own your truck.

KEMSO products are built with high-quality materials that resist impact, oil, and gasoline corrosion. Each unit is pre-shipment checked to ensure quality. Whether you need a fuel pump control module, a complete fuel pump assembly, or performance fuel system components, KEMSO has you covered.

Visit KEMSO Racing today to find the perfect fuel pump solution for your 2019 Silverado: https://www.kemsoracing.com/

Preventive Maintenance Tips

To extend the life of your new fuel pump control module and avoid future issues, follow these simple guidelines:

1. Keep the module clean and dry. The module is mounted on the frame where it can be exposed to road salt, mud, and water. Periodically inspect the area and clean off any buildup.

2. Check electrical connections. Loose or corroded connectors can cause voltage drops that stress the module. Apply dielectric grease to the connectors to prevent corrosion.

3. Use quality fuel. Low-quality fuel can contain contaminants that damage the fuel system. Stick with top-tier gasoline from reputable stations.

4. Address warning lights promptly. If the SES light comes on again after replacement, have the codes read immediately. Early diagnosis prevents more expensive repairs.

5. Maintain proper fuel levels. Running the tank consistently low can cause the fuel pump to overheat, putting additional stress on the control module.

Frequently Asked Questions

Q: Can I drive my 2019 Silverado with a bad fuel pump control module?
A: It depends on the severity. If the module is failing intermittently, you may be able to drive short distances, but you risk being stranded. If the module has failed completely, the truck will not start at all.

Q: Is the fuel pump control module the same as the fuel pump?
A: No. The control module is an electronic component that controls the fuel pump, while the fuel pump is the mechanical device that pushes fuel to the engine. On the 2019 Silverado, they are separate components.

Q: How long does it take to replace the fuel pump control module?
A: For a DIY mechanic, the job takes about 30 minutes to 1 hour. A professional technician can complete it in the 0.5 hours specified in the GM service bulletin.

Q: Will replacing the module clear the check engine light?
A: Yes, once the faulty module is replaced and any stored codes are cleared, the check engine light should turn off.

Q: Do I need to reprogram the new module?
A: No. The fuel pump control module on the 2019 Silverado is a plug-and-play component. No programming or dealer-level tools are required.

Final Thoughts

The 2019 Silverado fuel pump control module is a known weak point due to the software error identified by GM. If you are experiencing the symptoms described above, do not delay the replacement. The good news is that this is a relatively simple and affordable repair that you can do yourself in under an hour.

For the best results, use an OEM replacement part from GM or a high-quality aftermarket option. And remember, when you need a reliable fuel pump solution with lifetime warranty protection, KEMSO Racing is your trusted source.

Visit KEMSO Racing today: https://www.kemsoracing.com/ for premium fuel pump products backed by a lifetime warranty and built to OEM specifications. Your 2019 Silverado deserves the best, and KEMSO delivers.


Back to blog