AutoCodes – GMC – P0068 2014 GMC Sierra

P0068 2014 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 2014 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.

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Code Popularity 379

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 16, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0068 2014 GMC Sierra Description

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). The Diagnostic Trouble Code (DTC) will be set if the ECM detects that the actual air flow rate is greater than the calculated air flow.

OBDII Code P0068 2014 GMC Sierra - Throttle Body Air Flow Performance - AutoCodes.com — P0068 2014 GMC Sierra Code - Throttle Body Air Flow Performance

What does this mean?

What are the Possible Causes of the DTC P0068 2014 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 2014 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 2014 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 2014 GMC Sierra code?

Need more information on how to fix the P0068 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P0068 2014 GMC Sierra Code

1. What does the OBDII code P0068 for a 2014 GMC Sierra mean?

The P0068 code indicates a potential issue with the throttle body's air flow performance in a 2014 GMC Sierra.

2. What are some common symptoms of a P0068 code in a GMC Sierra?

Common symptoms include rough idling, reduced engine power, poor acceleration, and the Check Engine Light coming on.

3. What are the possible causes of the P0068 code in a 2014 GMC Sierra?

Potential causes of the P0068 code include a faulty throttle body, a dirty or clogged air filter, vacuum leaks, or issues with the mass airflow sensor.

4. How can I diagnose the P0068 code in my GMC Sierra?

Diagnosing the P0068 code involves checking the throttle body for any signs of damage or malfunction, inspecting the air filter for dirt or clogs, and scanning the mass airflow sensor for issues.

5. Can I drive my GMC Sierra with a P0068 code?

It is not recommended to drive your GMC Sierra with a P0068 code as it can lead to poor engine performance and potential damage if left unresolved.

6. How can I repair a P0068 code in my 2014 GMC Sierra?

Repairing a P0068 code may involve cleaning or replacing the throttle body, replacing the air filter, fixing any vacuum leaks, or replacing the mass airflow sensor.

7. Will resetting the OBDII system clear the P0068 code in my GMC Sierra?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear.

8. How much does it typically cost to repair a P0068 code in a 2014 GMC Sierra?

The cost of repairing a P0068 code can vary depending on the specific cause of the issue, but it may range from a few hundred dollars to over a thousand dollars.

9. Can a DIY enthusiast fix a P0068 code in a GMC Sierra?

Some simple fixes like cleaning the throttle body or replacing the air filter can be done by DIY enthusiasts, but more complex issues may require professional help.

10. How often does the P0068 code occur in a 2014 GMC Sierra?

The occurrence of the P0068 code can vary depending on factors like driving conditions, maintenance history, and the overall health of the vehicle's components.