P06C6 2015 GMC Sierra Code - Cylinder 2 Glow Plug Incorrect
Quick Answer
The P06C6 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates an issue with the glow plug in cylinder 2. Common causes include Faulty glow plug in cylinder 2, 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
- P06C6 2015 GMC Sierra indicates Cylinder 2 Glow Plug Incorrect.
- Common causes
- Common causes include Faulty glow plug in cylinder 2, 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.
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Code P06C6 2015 GMC Sierra Description
The P06C6 diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates an issue with the glow plug in cylinder 2. Glow plugs are essential components in diesel engines, especially during cold starts, as they heat the combustion chamber to aid in the ignition process. When the engine is cold, the glow plug helps to ensure proper combustion by creating the necessary heat for the fuel to ignite. In this case, the code specifically points to an incorrect performance from the glow plug in cylinder 2. This can lead to difficulties starting the engine, decreased fuel efficiency, and potential drivability issues.
Common Causes of P06C6 2015 GMC Sierra
- Faulty glow plug in cylinder 2.
- Wiring or connection issues related to the glow plug.
- Faulty glow plug control module.
- Engine control module (ECM) issues.
- Poor quality diesel fuel or contamination.
Symptoms of P06C6 2015 GMC Sierra
- Difficulty starting the engine, especially in cold weather.
- Rough idling or misfires.
- Decreased fuel efficiency.
- Engine hesitation or lack of power.
- Illumination of the check engine light.
How to Fix P06C6 2015 GMC Sierra
- Diagnose the specific issue by using a scan tool to pinpoint the faulty glow plug in cylinder 2.
- Inspect the wiring and connections related to the glow plug for any damage or corrosion.
- Test the glow plug control module to ensure it is functioning correctly.
- Replace the faulty glow plug in cylinder 2 with a new, high-quality part.
- Clear the DTC and test the vehicle to ensure the issue has been resolved.
Cost to Fix P06C6 2015 GMC Sierra
The typical repair costs for addressing a cylinder 2 glow plug incorrect issue can vary depending on the specific problem and the labor rates in your area. Generally, replacing a glow plug can cost between $100 and $200 per plug, including parts and labor. If additional components need to be replaced or if there are wiring issues, the cost can increase. Diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Keep in mind that rates at dealerships and in metropolitan areas may be higher, while independent shops may offer more competitive prices.
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