Engine-CodesGMC – P14A0 2017 GMC Sierra

P14A0 2017 GMC Sierra Code - Charge Air Cooler Coolant Pump Status Signal Message Counter Incorrect

Quick Answer

The P14A0 diagnostic trouble code for a 2017 GMC Sierra indicates a problem with the Charge Air Cooler Coolant Pump Status Signal Message Counter being incorrect. Common causes include Faulty coolant pump, Wiring or connection issues, ECM malfunction. 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
P14A0 2017 GMC Sierra indicates Charge Air Cooler Coolant Pump Status Signal Message Counter Incorrect.
Common causes
Common causes include Faulty coolant pump, Wiring or connection issues, ECM malfunction.
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.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P14A0 2017 GMC Sierra Description

The P14A0 diagnostic trouble code for a 2017 GMC Sierra indicates a problem with the Charge Air Cooler Coolant Pump Status Signal Message Counter being incorrect. In modern vehicles, the charge air cooler (CAC) plays a crucial role in the turbocharging system by cooling the compressed air before it enters the engine. The coolant pump is responsible for circulating coolant through the CAC to maintain optimal temperatures and ensure efficient performance.

OBDII Code P14A0 2017 GMC Sierra - Charge Air Cooler Coolant Pump Status Signal Message Counter Incorrect
P14A0 2017 GMC Sierra Code - Charge Air Cooler Coolant Pump Status Signal Message Counter Incorrect

Common Causes of P14A0 2017 GMC Sierra

  1. Faulty coolant pump
  2. Wiring or connection issues
  3. ECM malfunction
  4. Sensor malfunction
  5. Software glitches

Symptoms of P14A0 2017 GMC Sierra

  1. Reduced engine performance
  2. Decreased fuel efficiency
  3. Illumination of the check engine light
  4. Engine overheating
  5. Turbocharger issues

How to Fix P14A0 2017 GMC Sierra

  1. Begin by conducting a thorough inspection of the coolant pump, wiring, and connections to identify any visible damage or issues.
  2. Test the coolant pump and sensors to determine if they are functioning correctly.
  3. Check the ECM for any error codes or malfunctions related to the coolant pump status signal.
  4. Replace any faulty components, such as the coolant pump, sensors, wiring, or ECM, as needed.
  5. Clear the diagnostic trouble codes and perform a test drive to ensure the issue has been resolved.

Cost to Fix P14A0 2017 GMC Sierra

The typical repair costs for addressing a P14A0 code on a 2017 GMC Sierra can vary depending on the specific cause of the issue. In general, replacing a faulty coolant pump or sensors may cost between $200 and $500, while addressing wiring or ECM issues could range from $300 to $800 or more. Labor costs can add an additional $80 to $150 per hour, with total repair costs potentially exceeding $1000 in some cases. It's advisable to consult with a trusted mechanic or repair shop for a more accurate estimate based on your vehicle's specific needs.

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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 P14A0 2017 GMC Sierra Code

1. What does the OBDII code P14A0 mean on a 2017 GMC Sierra?

The P14A0 code indicates an issue with the Charge Air Cooler Coolant Pump Status Signal, specifically that the message counter is incorrect.

2. What are the common symptoms of the P14A0 code on a 2017 GMC Sierra?

Symptoms may include reduced engine performance, increased intake air temperatures, or the activation of the check engine light.

3. What causes the P14A0 code to appear on a GMC Sierra?

Common causes include a faulty charge air cooler (CAC) coolant pump, damaged wiring or connectors, or issues with the control module communication.

4. Can I drive my 2017 GMC Sierra with the P14A0 code?

While the vehicle may still be drivable, ignoring the issue can lead to reduced performance and potential engine overheating due to inadequate cooling.

5. How do you diagnose the P14A0 code on a GMC Sierra?

Diagnosis involves scanning for codes, inspecting the wiring and connectors for damage, and testing the operation of the charge air cooler coolant pump.

6. How do you fix the P14A0 code on a 2017 GMC Sierra?

Repairs may include replacing the charge air cooler coolant pump, repairing damaged wiring or connectors, or reprogramming or replacing the control module if necessary.

7. Is the P14A0 code related to overheating in a GMC Sierra?

Yes, this code can lead to insufficient cooling of the intake air, which may contribute to overheating or reduced engine efficiency.

8. How much does it cost to repair the P14A0 code on a GMC Sierra?

Repair costs vary but typically range from $200 to $600, depending on whether the issue involves the pump, wiring, or control module.

9. Can a faulty control module cause the P14A0 code?

Yes, a malfunctioning control module can cause communication errors leading to this code.

10. How can I prevent the P14A0 code from recurring?

Regular maintenance, including inspecting the charge air cooler system and ensuring proper coolant levels, can help prevent this issue.

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