P067F 2016 GMC Sierra Code - Cylinder 6 Glow Plug Control Circuit High Voltage
Quick Answer
The diagnostic trouble code P067F for a 2016 GMC Sierra indicates an issue with the Cylinder 6 Glow Plug Control Circuit High Voltage. Common causes include Faulty glow plug control module, Short circuit in the wiring connected to the glow plug, Damaged or worn-out glow plug. 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
- P067F 2016 GMC Sierra indicates Cylinder 6 Glow Plug Control Circuit High Voltage.
- Common causes
- Common causes include Faulty glow plug control module, Short circuit in the wiring connected to the glow plug, Damaged or worn-out glow plug.
- 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 P067F 2016 GMC Sierra Description
The diagnostic trouble code P067F for a 2016 GMC Sierra indicates an issue with the Cylinder 6 Glow Plug Control Circuit High Voltage. Glow plugs are essential components in diesel engines, as they help heat the combustion chamber for easier starting in cold conditions. The glow plug control module regulates the voltage supplied to the glow plugs to ensure proper combustion. When the control circuit for cylinder 6's glow plug detects high voltage, it can lead to various performance issues.
Common Causes of P067F 2016 GMC Sierra
- Faulty glow plug control module.
- Short circuit in the wiring connected to the glow plug.
- Damaged or worn-out glow plug.
- Issues with the engine control module (ECM).
- Corrosion or poor connections in the glow plug circuit.
Symptoms of P067F 2016 GMC Sierra
- Check engine light illuminated on the dashboard.
- Difficulties starting the engine, especially in cold weather.
- Reduced fuel efficiency.
- Rough idling or engine misfires.
- Engine performance issues, such as lack of power or acceleration.
How to Fix P067F 2016 GMC Sierra
- Begin by diagnosing the specific cause of the high voltage in the cylinder 6 glow plug control circuit using a diagnostic scanner.
- Inspect the glow plug control module, wiring, and glow plug for any visible damage or signs of wear.
- Test the glow plug control module and wiring for proper voltage output and continuity.
- Replace any faulty components, such as the glow plug control module, damaged wiring, or malfunctioning glow plug.
- Clear the diagnostic trouble code from the vehicle's ECM using the diagnostic scanner and test the vehicle to ensure the issue has been resolved.
Cost to Fix P067F 2016 GMC Sierra
The typical repair costs for addressing a Cylinder 6 Glow Plug Control Circuit High Voltage issue in a 2016 GMC Sierra can range from $200 to $500, including parts and labor. However, 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. It is advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.
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