P0068 2015 GMC Sierra Code - Throttle Body Air Flow Performance
Quick Answer
The Engine Control Module (ECM) compares actual air flow based on Throttle Position (TP) to a calculated air flow based on the Manifold Absolute Pressure (MAP) sensor, and Mass Air Flow (MAF). Common causes include Air leak between the Mass Air Flow (MAF) sensor and Throttle Body, Restricted Air Filter, Dirty Throttle Body. 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
- P0068 2015 GMC Sierra indicates Throttle Body Air Flow Performance.
- Common causes
- Common causes include Air leak between the Mass Air Flow (MAF) sensor and Throttle Body, Restricted Air Filter, Dirty Throttle Body.
- 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.
Code P0068 2015 GMC Sierra Description
What are the Possible Causes of the DTC P0068 2015 GMC Sierra?
- Air leak between the Mass Air Flow (MAF) sensor and Throttle Body
- Restricted Air Filter
- Dirty Throttle Body
- Dirty Mass Air Flow sensor
- Faulty Mass Air Flow sensor
- Faulty Manifold Absolute Pressure (MAP)
- Faulty Throttle Body
How to Fix the DTC P0068 2015 GMC Sierra?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0068 2015 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0068 2015 GMC Sierra code?
Need more information on how to fix the P0068 2015 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
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Frequently Asked Questions about P0068 2015 GMC Sierra Code
1. What does the OBDII code P0068 on a 2015 GMC Sierra indicate?
The P0068 code specifically refers to a Throttle Body Air Flow Performance issue detected by the vehicle's onboard diagnostics system.
2. What are some common symptoms of the P0068 code in a 2015 GMC Sierra?
Common symptoms of the P0068 code may include engine stalling, rough idling, reduced engine power, hesitation during acceleration, and the illumination of the Check Engine Light.
3. What are the possible causes of the P0068 code in a 2015 GMC Sierra?
Possible causes of the P0068 code include a faulty mass air flow sensor, a dirty or clogged air filter, a malfunctioning throttle body, vacuum leaks, or issues with the intake air system.
4. How can I diagnose the P0068 code on my 2015 GMC Sierra?
Diagnosing the P0068 code typically involves using an OBDII scanner to retrieve the code, inspecting the air intake system for any issues, checking the mass air flow sensor for proper operation, and ensuring there are no vacuum leaks.
5. Can I still drive my 2015 GMC Sierra with the P0068 code present?
It is not recommended to drive your vehicle with the P0068 code present, as it can lead to further engine damage and potential safety hazards. It's best to address the issue promptly.
6. How can I repair the P0068 code on my 2015 GMC Sierra?
Repairing the P0068 code may involve cleaning or replacing the mass air flow sensor, replacing the air filter, cleaning the throttle body, fixing any vacuum leaks, and ensuring proper functioning of the intake air system.
7. Will resetting the Check Engine Light resolve the P0068 code on my 2015 GMC Sierra?
Simply resetting the Check Engine Light may temporarily clear the code, but it will not fix the underlying issue causing the P0068 code. It's essential to diagnose and address the root cause of the problem.
8. How much does it typically cost to repair the P0068 code on a 2015 GMC Sierra?
The cost of repairing the P0068 code can vary depending on the exact cause of the issue and the labor rates in your area. It's advisable to consult with a qualified mechanic for an accurate estimate.
9. Can a DIY enthusiast fix the P0068 code on a 2015 GMC Sierra?
While some aspects of addressing the P0068 code, such as cleaning the mass air flow sensor or replacing the air filter, can be tackled by a DIY enthusiast, more complex issues like throttle body replacement may require professional help.
10. How often does the P0068 code occur in a 2015 GMC Sierra?
The occurrence of the P0068 code can vary depending on factors like vehicle maintenance, driving conditions, and overall vehicle health. If the necessary maintenance and inspections are carried out regularly, the likelihood of encountering this code may be reduced.
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