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Engine-Codes – GMC – P064A 2017 GMC Sierra

P064A 2017 GMC Sierra Code - Fuel Pump Control Module Performance

Quick Answer

The P064A diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the Fuel Pump Control Module (FPCM) performance. Common causes include Electrical Issues: Wiring harness problems, loose connections, or corroded terminals can disrupt the FPCM's operation, Faulty FPCM: The FPCM itself may be malfunctioning due to internal component failures or damage, Software Glitch: An issue with the FPCM's software or programming can also trigger the P064A code. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P064A 2017 GMC Sierra indicates Fuel Pump Control Module Performance.
Common causes
Common causes include Electrical Issues: Wiring harness problems, loose connections, or corroded terminals can disrupt the FPCM's operation, Faulty FPCM: The FPCM itself may be malfunctioning due to internal component failures or damage, Software Glitch: An issue with the FPCM's software or programming can also trigger the P064A code.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 18, 2024
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Code P064A 2017 GMC Sierra Description

The P064A diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the Fuel Pump Control Module (FPCM) performance. The FPCM is a crucial component of the fuel system that regulates the fuel pump's operation, ensuring the proper amount of fuel is delivered to the engine. When this code is triggered, it indicates that the FPCM is not functioning as expected, which can lead to various issues with the vehicle's fuel delivery system.

OBDII Code P064A 2017 GMC Sierra - Fuel Pump Control Module Performance
P064A 2017 GMC Sierra Code - Fuel Pump Control Module Performance

Common Causes of P064A 2017 GMC Sierra

  1. Electrical Issues: Wiring harness problems, loose connections, or corroded terminals can disrupt the FPCM's operation.
  2. Faulty FPCM: The FPCM itself may be malfunctioning due to internal component failures or damage.
  3. Software Glitch: An issue with the FPCM's software or programming can also trigger the P064A code.
  4. Fuel Pump Problems: Issues with the fuel pump, such as a clogged fuel filter or a failing pump, can impact the FPCM's performance.
  5. Environmental Factors: Exposure to moisture, heat, or other environmental factors can damage the FPCM and lead to performance issues.

Symptoms of P064A 2017 GMC Sierra

  1. Check Engine Light: The most common symptom associated with the P064A code is the illumination of the check engine light on the vehicle's dashboard.
  2. Reduced Engine Performance: A malfunctioning FPCM can lead to reduced engine performance, including decreased power and acceleration.
  3. Poor Fuel Efficiency: Inefficient fuel delivery due to a faulty FPCM can result in decreased fuel efficiency and increased fuel consumption.
  4. Engine Stalling: If the FPCM is not functioning correctly, it can cause the engine to stall or hesitate while driving.
  5. Rough Idling: A malfunctioning FPCM may also cause the engine to idle roughly or inconsistently.

How to Fix P064A 2017 GMC Sierra

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the trouble codes and perform a thorough inspection of the FPCM, wiring, and fuel pump to identify the root cause of the problem.
  2. Repair or Replace FPCM: Depending on the diagnosis, repair or replace the FPCM to restore proper functionality. Ensure the new component is programmed and calibrated correctly.
  3. Check Wiring and Connections: Inspect the wiring harness and connections for any damage, corrosion, or loose connections. Repair or replace as needed.
  4. Test Fuel Pump: Verify the fuel pump's operation and pressure to ensure it is functioning correctly. Address any issues with the fuel pump if necessary.
  5. Clear Codes and Test Drive: After completing the repairs, clear the trouble codes from the vehicle's computer and test drive the vehicle to confirm that the issue has been resolved.

Cost to Fix P064A 2017 GMC Sierra

The typical repair costs for addressing a P064A code on a 2017 GMC Sierra can range from $200 to $600, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops often charge less. It is advisable to obtain local estimates for a more accurate cost assessment.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P064A 2017 GMC Sierra Code

1. What does the OBDII code P064A mean on a 2017 GMC Sierra?

P064A indicates a performance issue with the Fuel Pump Control Module (FPCM), which manages the fuel pump's operation to supply the correct fuel pressure.

2. What are the common symptoms of a P064A code in a 2017 GMC Sierra?

Symptoms include difficulty starting the vehicle, poor fuel economy, engine misfires, rough idling, or the engine stalling unexpectedly.

3. What causes the P064A code to appear in a 2017 GMC Sierra?

Common causes include a faulty Fuel Pump Control Module, poor electrical connections, wiring issues, or a failed fuel pump.

4. Can I drive my 2017 GMC Sierra with a P064A code?

Driving with a P064A code is not recommended, as it can lead to inconsistent fuel delivery, poor performance, and potential engine damage.

5. How do I diagnose the P064A code on my GMC Sierra?

Start by checking the FPCM and its wiring for damage or corrosion, inspect the fuel pump, and use a scan tool to monitor FPCM data for irregularities.

6. How is the P064A code repaired on a 2017 GMC Sierra?

Repairs may involve replacing the Fuel Pump Control Module, repairing or replacing damaged wiring, cleaning corroded connectors, or, in rare cases, replacing the fuel pump.

7. How much does it cost to fix a P064A code on a 2017 GMC Sierra?

The repair cost varies, but replacing the Fuel Pump Control Module typically ranges from $300 to $700, including parts and labor.

8. Can a software update fix the P064A code on a 2017 GMC Sierra?

In some cases, a software update for the FPCM may resolve the issue if the problem is related to outdated programming.

9. What tools do I need to troubleshoot a P064A code on my GMC Sierra?

You’ll need an OBDII scan tool, a multimeter for testing electrical connections, and potentially a wiring diagram for the fuel system.

10. Can a weak battery cause the P064A code on a 2017 GMC Sierra?

Yes, a weak or failing battery can cause voltage irregularities, which may trigger the P064A code in the Fuel Pump Control Module.

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