2022 Silverado Fuel Pump Control Module: Symptoms, Replacement Guide, and Solutions

The bottom line: If your 2022 Chevrolet Silverado is experiencing hard starting, stalling, poor fuel economy, or even an engine that won't shut off, the Fuel Pump Control Module (FPCM) is likely the culprit. This critical component manages fuel pressure by controlling the electric fuel pump's speed, and when it fails, it can cause a wide range of drivability issues. The replacement part number you need is 13565642, which supersedes earlier numbers like 13540026, 13540028, and 13551111. A professional diagnosis or a simple physical test can confirm the problem, and replacement is a straightforward job that can save you hundreds of dollars in shop labor.

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

The Fuel Pump Control Module (FPCM) is an electronic device mounted near the fuel tank on your 2022 Silverado, typically on the right rear frame rail. Unlike older trucks that used a simple on/off fuel pump, modern Silverados use a pulse-width modulated (PWM) system. The FPCM receives commands from the Engine Control Module (ECM) and adjusts the voltage sent to the fuel pump, controlling its speed to maintain precise fuel pressure.

This on-demand fuel delivery system improves fuel economy, reduces fuel heating, and delivers better performance. The FPCM is essentially the brain of the fuel delivery system—without it working correctly, your engine won't get the right amount of fuel at the right pressure.

Common Symptoms of a Failing FPCM in a 2022 Silverado

Recognizing the warning signs early can prevent a complete breakdown. Here are the most common symptoms:

1. Hard Starting or No Start Condition
The engine cranks but takes longer than usual to fire up, or it may not start at all. The FPCM isn't providing the correct voltage to prime the fuel system.

2. Engine Stalling or Hesitation
Your truck may stall unexpectedly, especially at low speeds or when coming to a stop. You might also notice hesitation during acceleration, which is a sign that fuel pressure is dropping under load.

3. Poor Fuel Economy
A failing FPCM can cause the fuel pump to run at incorrect speeds, either too fast or too slow. This wastes fuel and reduces your miles per gallon.

4. Check Engine Light with Specific Codes
The most common diagnostic trouble codes related to the FPCM include P0498 (EVAP system purge control valve circuit low) and various fuel system pressure codes.

5. Engine Won't Shut Off (The "Run-On" Condition)
This is a bizarre but documented problem for certain 2019-2022 Silverado and Sierra trucks. According to GM Service Bulletin PIT6489, released in February 2026, the FPCM can feed voltage backward through the wiring harness, keeping the engine running even with the ignition off. The diagnostic procedure is simple: leave the ignition off, disconnect the K111 Fuel Pump Drive Control Module, and the engine should immediately shut down.

How to Diagnose the Problem

Before buying any parts, confirm that the FPCM is actually the issue. Here's a step-by-step diagnostic approach:

Step 1: Check for Diagnostic Trouble Codes
Use an OBD-II scanner to read any stored codes. Codes like P0498, P0087, or P0231 point to fuel pump or fuel pressure issues.

Step 2: Perform the "Run-On" Test (If Applicable)
If your engine won't shut off, leave the ignition in the OFF position while the engine is running. Locate the FPCM on the right rear frame rail and disconnect its electrical connector. If the engine immediately stalls, the FPCM is confirmed faulty.

Step 3: Listen for Fuel Pump Operation
Turn the key to the ON position (without starting the engine). You should hear a brief whirring sound from the fuel pump near the rear of the truck. If you hear nothing, the FPCM or the pump itself could be the problem.

Step 4: Check Voltage and Ground
Using a multimeter, check for 12V power and a solid ground at the FPCM connector. If power is present but the module isn't sending voltage to the pump, the FPCM is likely bad.

Which Replacement Part Do You Need?

For the 2022 Silverado, the correct replacement FPCM part number is 13565642. This part supersedes several earlier numbers, including:

  • 13540026
  • 13540028
  • 13551111
  • 13526238
  • 13537053

The 13565642 module is compatible with the following vehicles:

  • 2022 Chevrolet Silverado 1500 LTD (2.7L, 5.3L, 6.2L gas engines)
  • 2022 Chevrolet Silverado 2500HD/3500HD (6.6L gas engine)
  • 2022 GMC Sierra 1500 Limited (gas engines)
  • 2022 GMC Sierra 2500HD/3500HD (6.6L gas engine)

Note: This does not apply to Duramax diesel models. The bulletin specifically covers only gas engines.

How to Replace the Fuel Pump Control Module

Replacing the FPCM is a DIY-friendly job that should take about 30 minutes. Here's the procedure:

Tools Needed:

  • Socket set (10mm and 13mm)
  • Flathead screwdriver
  • Safety glasses
  • Gloves

Step-by-Step Replacement:

  1. Disconnect the battery. Remove the negative terminal first to avoid any electrical shorts or shocks.

  2. Locate the FPCM. It's mounted on the right rear frame rail, near the spare tire area. You may need to slightly lower the spare tire for better access.

  3. Disconnect the electrical connectors. Press the release tabs and carefully pull the connectors away from the module. Note the orientation of each connector.

  4. Remove the mounting bolts. Usually two 10mm or 13mm bolts hold the module to the frame bracket. Remove them and lift the old module off.

  5. Install the new module. Position the new 13565642 module onto the bracket and secure it with the bolts. Torque them to spec (usually around 8-10 ft-lbs).

  6. Reconnect the electrical connectors. Push them firmly until you hear them click into place.

  7. Reconnect the battery. Attach the negative terminal first, then the positive.

  8. Test the system. Turn the key to the ON position and listen for the fuel pump to prime. Start the engine and let it idle. Check for any warning lights. Clear any stored codes with your OBD-II scanner.

Where to Buy the Replacement Module

You have several options when purchasing a replacement FPCM:

OEM Genuine Parts: The most reliable choice, but also the most expensive. A genuine GM module can cost between $115 and $216, depending on the source.

Aftermarket Brands: Several aftermarket options are available at lower prices. Brands like CHAOHAI, ZOOKOTO, and ATRACYPART sell compatible modules ranging from $70 to $150. However, quality can vary, so choose a reputable brand with good reviews.

KEMSO Fuel Pump Solutions: If you're looking for a high-performance, OEM replacement fuel pump with a lifetime warranty, KEMSO offers a range of products designed for reliability and durability. KEMSO fuel pumps are built to meet or exceed OEM specifications, ensuring a perfect fit and long-lasting performance. Visit https://www.kemsoracing.com/ to explore their product lineup and find the right fuel pump for your Silverado.

What About the Cost?

The total cost to replace the FPCM depends on whether you do it yourself or hire a mechanic:

  • Parts only: $70 to $150 for an aftermarket module, or $115 to $216 for an OEM GM module.
  • Labor: If you hire a shop, expect to pay $50 to $150 for labor, depending on your location and the shop's hourly rate.
  • DIY savings: Doing it yourself saves the labor cost entirely. The job is simple enough for most DIYers with basic tools.

GM's Official Stance and Warranty Coverage

If your truck is still under the factory warranty, the FPCM replacement is covered under the vehicle's Emission Warranty (Labor Operation 4022020). This is important to know before you spend money on a replacement. Contact your local Chevy dealer to check if your truck qualifies.

For trucks outside the warranty period, the replacement is still relatively affordable compared to other fuel system repairs.

Preventative Maintenance Tips

To extend the life of your new FPCM and avoid future failures:

  • Replace the fuel filter regularly. A clogged filter puts extra strain on the entire fuel system, including the FPCM.
  • Don't run the tank empty. The fuel pump relies on the fuel in the tank for cooling. Running it dry can overheat and damage both the pump and the control module.
  • Address fuel system issues promptly. If you notice symptoms like hard starting or poor fuel economy, don't ignore them. Early diagnosis can prevent a complete failure on the road.

Final Thoughts

The 2022 Silverado Fuel Pump Control Module is a relatively simple, inexpensive part that can cause major headaches when it fails. The good news is that diagnosing the problem is straightforward, and replacing the module is a job almost anyone can do in their driveway. Whether you choose an OEM part or a reliable aftermarket brand, the key is to confirm the correct part number (13565642) and ensure compatibility with your specific truck model.

If you're looking for a fuel pump that offers superior performance and a lifetime warranty, consider KEMSO. Their products are designed for direct OEM replacement, so you get a perfect fit without any modifications. Visit https://www.kemsoracing.com/ to learn more and find the right fuel pump for your Silverado.


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