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Engine-Codes – GMC – P064A 2014 GMC Sierra

P064A 2014 GMC Sierra Code - Fuel Pump Control Module Performance

Quick Answer

The P064A diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the Fuel Pump Control Module (FPCM) performance. Common causes include Faulty Fuel Pump Control Module (FPCM), Wiring or connector issues, Malfunctioning fuel pump. 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 2014 GMC Sierra indicates Fuel Pump Control Module Performance.
Common causes
Common causes include Faulty Fuel Pump Control Module (FPCM), Wiring or connector issues, Malfunctioning fuel pump.
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 2014 GMC Sierra Description

The P064A diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the Fuel Pump Control Module (FPCM) performance. The FPCM is responsible for controlling the fuel pump's operation, ensuring the correct fuel pressure is maintained for the engine's needs. When this code is triggered, it means that the FPCM is not functioning as it should, which can lead to various issues with the vehicle's fuel delivery system.

OBDII Code P064A 2014 GMC Sierra - Fuel Pump Control Module Performance
P064A 2014 GMC Sierra Code - Fuel Pump Control Module Performance

Common Causes of P064A 2014 GMC Sierra

  1. Faulty Fuel Pump Control Module (FPCM)
  2. Wiring or connector issues
  3. Malfunctioning fuel pump
  4. Problems with the Powertrain Control Module (PCM)
  5. Electrical system issues

Symptoms of P064A 2014 GMC Sierra

  1. Poor fuel economy
  2. Rough idling
  3. Stalling
  4. Hesitation during acceleration
  5. Difficulty starting the engine

How to Fix P064A 2014 GMC Sierra

  1. Begin by conducting a thorough diagnostic scan to confirm the P064A code and identify the specific cause of the issue.
  2. Inspect the wiring and connectors associated with the FPCM and fuel pump for any signs of damage or corrosion. Repair or replace as necessary.
  3. Test the fuel pump and FPCM for proper functionality. Replace any components that are found to be faulty.
  4. Clear the DTC and perform a test drive to ensure the issue has been resolved.
  5. If the problem persists, further diagnosis may be required to pinpoint the exact cause of the performance issue.

Cost to Fix P064A 2014 GMC Sierra

The typical repair costs for addressing a P064A code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of replacing a Fuel Pump Control Module (FPCM) can range from $200 to $500, including parts and labor. However, additional costs may be incurred if other components need to be replaced or if further diagnosis is required.

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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 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P064A in a 2014 GMC Sierra related to the Fuel Pump Control Module?

- Common symptoms include engine stalling, rough idling, poor acceleration, and difficulty starting the vehicle.

2. What are the possible causes of the P064A code in a 2014 GMC Sierra?

- The code P064A typically indicates a malfunction in the Fuel Pump Control Module, which can be caused by wiring issues, a faulty control module, or a problem with the fuel pump itself.

3. How can I diagnose the P064A code in my 2014 GMC Sierra?

- Diagnosing the P064A code involves using an OBDII scanner to retrieve the code and then inspecting the wiring connections, checking the fuel pump control module, and testing the fuel pump for proper function.

4. Can I still drive my 2014 GMC Sierra with the P064A code present?

- It is not recommended to drive the vehicle with the P064A code active, as it can lead to serious performance issues and potential engine damage. It's best to address the issue promptly.

5. What are some tips for repairing the P064A code in a 2014 GMC Sierra?

- Repairing the P064A code may involve repairing or replacing damaged wiring, replacing the fuel pump control module, or installing a new fuel pump if necessary. It is recommended to follow manufacturer guidelines for the specific repair process.

6. Is the P064A code in a 2014 GMC Sierra a serious issue?

- The P064A code related to the Fuel Pump Control Module performance should be taken seriously, as it can lead to drivability issues and potential engine damage if left unresolved.

7. How much does it typically cost to repair the P064A code in a 2014 GMC Sierra?

- The cost of repairing the P064A code can vary depending on the root cause of the issue and whether you choose to do the repairs yourself or take it to a mechanic. Costs may range from a few hundred to over a thousand dollars.

8. Will resetting the OBDII code P064A in my 2014 GMC Sierra make the issue go away?

- Resetting the code may temporarily turn off the check engine light, but it will not fix the underlying issue causing the P064A code. It's important to diagnose and repair the problem to prevent further issues.

9. Can a DIY enthusiast tackle the repair of the P064A code in a 2014 GMC Sierra?

- Depending on your skill level and access to tools, a DIY enthusiast may be able to tackle the repair of the P064A code. However, it's crucial to have the necessary knowledge and follow proper procedures to avoid complications.

10. How often does the P064A code related to the Fuel Pump Control Module performance occur in a 2014 GMC Sierra?

- The occurrence of the P064A code can vary depending on factors such as vehicle usage and maintenance. If the code does appear, it should be addressed promptly to prevent further issues.

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