Engine-CodesGMC – P06CC 2018 GMC Sierra

P06CC 2018 GMC Sierra Code - Cylinder 8 Glow Plug Incorrect

Quick Answer

The P06CC diagnostic trouble code (DTC) for a 2018 GMC Sierra specifically indicates an issue with the glow plug in cylinder 8 of the engine. Common causes include Faulty glow plug in cylinder 8, Wiring issues or electrical connections related to the glow plug, Malfunctioning glow plug control module. 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
P06CC 2018 GMC Sierra indicates Cylinder 8 Glow Plug Incorrect.
Common causes
Common causes include Faulty glow plug in cylinder 8, Wiring issues or electrical connections related to the glow plug, Malfunctioning glow plug control module.
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 16, 2024
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Code P06CC 2018 GMC Sierra Description

The P06CC diagnostic trouble code (DTC) for a 2018 GMC Sierra specifically indicates an issue with the glow plug in cylinder 8 of the engine. Glow plugs are essential components in diesel engines, as they help heat the combustion chamber to facilitate cold starts. When the engine is cold, the glow plug heats up to ensure proper ignition of the fuel-air mixture. In this case, the code suggests that the glow plug in cylinder 8 is not functioning correctly, which can lead to difficulties starting the engine, reduced performance, increased emissions, and potential long-term damage if not addressed promptly.

OBDII Code P06CC 2018 GMC Sierra - Cylinder 8 Glow Plug Incorrect
P06CC 2018 GMC Sierra Code - Cylinder 8 Glow Plug Incorrect

Common Causes of P06CC 2018 GMC Sierra

  1. Faulty glow plug in cylinder 8.
  2. Wiring issues or electrical connections related to the glow plug.
  3. Malfunctioning glow plug control module.
  4. Engine computer system issues.
  5. Environmental factors such as extreme cold affecting the glow plug's performance.

Symptoms of P06CC 2018 GMC Sierra

  1. Difficulties starting the engine, especially in cold weather.
  2. Rough idling or engine misfires.
  3. Decreased fuel efficiency.
  4. Engine stalling or hesitation during acceleration.
  5. Illumination of the check engine light on the dashboard.

How to Fix P06CC 2018 GMC Sierra

  1. Begin by diagnosing the specific cause of the issue using a diagnostic scanner to pinpoint the faulty component.
  2. Inspect the glow plug in cylinder 8 for any signs of damage or wear and replace if necessary.
  3. Check the wiring and electrical connections related to the glow plug for any faults or loose connections.
  4. Test the glow plug control module to ensure it is functioning correctly and replace if needed.
  5. Clear the DTC from the vehicle's computer system and test the vehicle to ensure the issue has been resolved.

Cost to Fix P06CC 2018 GMC Sierra

The typical repair costs for addressing a cylinder 8 glow plug incorrect code in a 2018 GMC Sierra can vary depending on the specific cause of the issue. On average, the cost of replacing a glow plug can range from $50 to $150 per plug, with additional costs for labor. The total repair cost, including parts and labor, may range from $150 to $500 or more. It's essential to consider the specific diagnosis time and labor rates at auto repair shops, which can vary based on factors such as location, vehicle make and model, and engine type. Rates typically range between $80 and $150 per hour, with rates potentially higher at dealerships or in metropolitan areas and lower at independent shops. It's advisable to obtain quotes from local shops for a more accurate estimate.

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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 P06CC 2018 GMC Sierra Code

What does the OBDII code P06CC mean on a 2018 GMC Sierra?

The P06CC code indicates that the Engine Control Module (ECM) has detected an issue with the glow plug in cylinder 8, typically due to incorrect operation or a fault.

What are the symptoms of a P06CC code on a 2018 GMC Sierra?

Symptoms may include a check engine light, difficulty starting in cold weather, rough idling, or reduced engine performance.

What causes the P06CC code on a 2018 GMC Sierra?

Common causes include a faulty glow plug, damaged glow plug wiring or connectors, a malfunctioning glow plug control module, or an ECM software issue.

How do I diagnose the P06CC code on a 2018 GMC Sierra?

Begin by scanning for trouble codes, inspecting the cylinder 8 glow plug and wiring for damage, and testing the glow plug for proper resistance and operation.

Can I drive my 2018 GMC Sierra with a P06CC code?

While the vehicle may still operate, driving with this code can lead to poor cold-weather performance and potentially damage other engine components if not addressed.

How do I fix the P06CC code on a 2018 GMC Sierra?

Repairs may involve replacing the faulty glow plug in cylinder 8, repairing damaged wiring or connectors, or replacing the glow plug control module if necessary.

How much does it cost to fix a P06CC code on a 2018 GMC Sierra?

The repair cost varies but typically ranges from $100 to $300, depending on whether the glow plug or control module needs replacing and labor costs.

Can a P06CC code clear on its own after repairs?

Yes, if the underlying issue is resolved, the code may clear on its own after a few drive cycles, or it can be manually cleared using an OBDII scanner.

What tools are needed to repair the P06CC code on a 2018 GMC Sierra?

Common tools include an OBDII scanner, a multimeter for testing resistance, basic hand tools for glow plug removal, and possibly a torque wrench for proper installation.

What happens if I ignore the P06CC code on my 2018 GMC Sierra?

Ignoring this code can lead to harder cold starts, increased fuel consumption, and potential long-term damage to the engine or emissions system.

Discuss the causes and fixes for P06CC 2018 GMC Sierra OBDII Code

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