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P00AF 2017 GMC Sierra Code - Turbocharger Boost Control Module Performance

Quick Answer

The P00AF diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates an issue with the Turbocharger Boost Control Module's performance. Common causes include Faulty boost control solenoid, Damaged wiring harness, Leaking or disconnected vacuum lines. 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
P00AF 2017 GMC Sierra indicates Turbocharger Boost Control Module Performance.
Common causes
Common causes include Faulty boost control solenoid, Damaged wiring harness, Leaking or disconnected vacuum lines.
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 17, 2024
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Code P00AF 2017 GMC Sierra Description

The P00AF diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates an issue with the Turbocharger Boost Control Module's performance. The turbocharger boost control module is responsible for regulating the amount of boost pressure that the turbocharger generates. This code typically signifies that the module is not functioning as intended, which can lead to a decrease in engine performance and efficiency.

OBDII Code P00AF 2017 GMC Sierra - Turbocharger Boost Control Module Performance
P00AF 2017 GMC Sierra Code - Turbocharger Boost Control Module Performance

Common Causes of P00AF 2017 GMC Sierra

  1. Faulty boost control solenoid
  2. Damaged wiring harness
  3. Leaking or disconnected vacuum lines
  4. Turbocharger malfunction
  5. Software or calibration issues with the control module

Symptoms of P00AF 2017 GMC Sierra

  1. Decreased engine power
  2. Sluggish acceleration
  3. Reduced fuel efficiency
  4. Engine misfires
  5. Illumination of the check engine light

How to Fix P00AF 2017 GMC Sierra

  1. Begin by conducting a thorough diagnostic scan to confirm the P00AF code and identify the specific cause of the issue.
  2. Inspect the boost control solenoid, wiring harness, and vacuum lines for any signs of damage or leaks. Replace or repair as necessary.
  3. Test the turbocharger for proper function and address any issues found.
  4. Check for any software updates or recalibrations needed for the turbocharger boost control module.
  5. Clear the DTC and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix P00AF 2017 GMC Sierra

The typical repair costs for addressing a P00AF code on a 2017 GMC Sierra can range from $200 to $800, depending on the specific cause of the issue and the parts needed for repair. This estimate includes both parts and labor. It is important to note that diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. Rates may be higher at dealerships or in metropolitan areas, while independent shops may offer lower rates. For a more accurate estimate, it is recommended to inquire with local auto repair shops.

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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 P00AF 2017 GMC Sierra Code

1. What does the OBDII code P00AF mean on a 2017 GMC Sierra?

P00AF indicates a performance issue with the Turbocharger Boost Control Module, which is responsible for managing and regulating boost pressure from the turbocharger.

2. What are the common symptoms of code P00AF in a 2017 GMC Sierra?

Symptoms may include reduced engine power, poor acceleration, decreased fuel efficiency, excessive smoke from the exhaust, or the Check Engine Light being illuminated.

3. What causes code P00AF on a 2017 GMC Sierra?

Common causes include a faulty turbocharger boost control module, damaged or stuck turbocharger vanes, wiring issues, a malfunctioning turbocharger actuator, or vacuum/pressure leaks in the turbo system.

4. Can I drive my 2017 GMC Sierra with code P00AF?

While you may be able to drive the vehicle, it is not recommended, as the engine may experience reduced performance, and continued driving could lead to further damage to the turbocharger or related components.

5. How do I fix code P00AF on a 2017 GMC Sierra?

Repairs typically include inspecting and replacing the turbocharger boost control module, repairing wiring or connector issues, cleaning or repairing stuck turbo vanes, or replacing a faulty turbo actuator.

6. How do I diagnose the P00AF code on a 2017 GMC Sierra?

Diagnosis involves using an OBDII scanner to confirm the code, visually inspecting the turbocharger system, checking for wiring or connector damage, and testing the turbo actuator and boost control module for functionality.

7. Can a dirty air filter cause the P00AF code on a 2017 GMC Sierra?

While a dirty air filter is unlikely to directly trigger P00AF, it can contribute to reduced airflow, which may exacerbate turbo-related issues. It’s good practice to ensure the air filter is clean.

8. How much does it cost to repair the P00AF code on a 2017 GMC Sierra?

Repair costs can vary widely, ranging from $100 for wiring repairs to over $1,000 if the turbocharger or boost control module needs replacement.

9. Is the P00AF code related to the turbocharger itself?

Yes, the code often points to issues within the turbocharger system, such as the boost control module, actuator, or vanes, but it does not always mean the entire turbocharger is faulty.

10. Can a software update fix the P00AF code on a 2017 GMC Sierra?

In some cases, a reflash or update of the engine control module (ECM) software may resolve the issue if it was caused by a calibration or communication problem. However, mechanical components should be inspected first.

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