Engine-CodesGMC – P06C7 2016 GMC Sierra

P06C7 2016 GMC Sierra Code - Cylinder 3 Glow Plug Incorrect

Quick Answer

The diagnostic trouble code P06C7 for a 2016 GMC Sierra indicates a problem with the glow plug in cylinder 3. Common causes include Faulty glow plug in cylinder 3, Wiring or connection issues related to the glow plug, Faulty 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
P06C7 2016 GMC Sierra indicates Cylinder 3 Glow Plug Incorrect.
Common causes
Common causes include Faulty glow plug in cylinder 3, Wiring or connection issues related to the glow plug, Faulty 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 17, 2024
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Code P06C7 2016 GMC Sierra Description

The diagnostic trouble code P06C7 for a 2016 GMC Sierra indicates a problem with the glow plug in cylinder 3. Glow plugs are essential components in diesel engines, as they heat the combustion chamber to facilitate cold starts. When the engine is cold, the glow plug helps ignite the fuel-air mixture by providing additional heat. If the glow plug in cylinder 3 is incorrect or malfunctioning, it can lead to issues with starting the engine, reduced fuel efficiency, and potential damage to the engine over time.

OBDII Code P06C7 2016 GMC Sierra - Cylinder 3 Glow Plug Incorrect
P06C7 2016 GMC Sierra Code - Cylinder 3 Glow Plug Incorrect

Common Causes of P06C7 2016 GMC Sierra

  1. Faulty glow plug in cylinder 3
  2. Wiring or connection issues related to the glow plug
  3. Faulty glow plug control module
  4. Engine control module (ECM) issues
  5. Diesel fuel quality or contamination affecting the glow plug

Symptoms of P06C7 2016 GMC Sierra

  1. Difficulty starting the engine, especially in cold weather
  2. Rough idling or misfires
  3. Decreased engine performance
  4. Excessive smoke from the exhaust
  5. Reduced fuel efficiency

How to Fix P06C7 2016 GMC Sierra

  1. Diagnose the specific issue by using a scan tool to confirm the code and inspect the glow plug in cylinder 3.
  2. Replace the faulty glow plug in cylinder 3 with a new, compatible part.
  3. Inspect and repair any wiring or connection issues related to the glow plug.
  4. Check the glow plug control module and ECM for any faults or malfunctions and replace if necessary.
  5. Clear the diagnostic trouble code from the ECM and test the vehicle to ensure the issue has been resolved.

Cost to Fix P06C7 2016 GMC Sierra

The typical repair costs for addressing a cylinder 3 glow plug incorrect code in a 2016 GMC Sierra can range from $150 to $300, including parts and labor. However, it's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's recommended to check local rates 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.

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