P067F 2018 GMC Sierra Code - Cylinder 6 Glow Plug Control Circuit High Voltage
Quick Answer
The diagnostic trouble code P067F in a 2018 GMC Sierra specifically refers to an issue with the Cylinder 6 Glow Plug Control Circuit registering high voltage. Common causes include Faulty glow plug in Cylinder 6, Damaged wiring or connectors in the glow plug control circuit, Malfunctioning glow plug 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
- P067F 2018 GMC Sierra indicates Cylinder 6 Glow Plug Control Circuit High Voltage.
- Common causes
- Common causes include Faulty glow plug in Cylinder 6, Damaged wiring or connectors in the glow plug control circuit, Malfunctioning glow plug 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 P067F 2018 GMC Sierra Description
The diagnostic trouble code P067F in a 2018 GMC Sierra specifically refers to an issue with the Cylinder 6 Glow Plug Control Circuit registering high voltage. Glow plugs are essential components in diesel engines, as they help with the ignition process by heating up the combustion chamber to facilitate cold starts. When the control circuit for the glow plug in Cylinder 6 detects a voltage higher than the specified range, it triggers this code.
Common Causes of P067F 2018 GMC Sierra
- Faulty glow plug in Cylinder 6.
- Damaged wiring or connectors in the glow plug control circuit.
- Malfunctioning glow plug module.
- Issues with the ECM (Engine Control Module) programming.
- Corrosion or poor connections in the electrical system.
Symptoms of P067F 2018 GMC Sierra
- Difficulty starting the engine, especially in cold weather.
- Rough idling or misfiring of the engine.
- Reduced power output and acceleration.
- Increased exhaust emissions.
- Illumination of the check engine light on the dashboard.
How to Fix P067F 2018 GMC Sierra
- Begin by conducting a thorough inspection of the glow plug in Cylinder 6, checking for any signs of damage or malfunction.
- Test the wiring and connectors in the glow plug control circuit to identify any faults or breaks that may be causing the high voltage issue.
- Inspect the glow plug module for proper functionality and replace if necessary.
- Use a diagnostic tool to scan the ECM for any error codes and reprogram if needed.
- Clear the error code from the vehicle's system and test the engine to ensure that the issue has been resolved.
Cost to Fix P067F 2018 GMC Sierra
The typical repair costs for addressing a Cylinder 6 Glow Plug Control Circuit High Voltage issue in a 2018 GMC Sierra can vary depending on the specific cause of the problem. On average, the parts required for this repair, such as a new glow plug, wiring, connectors, or glow plug module, can range from $100 to $300. Labor costs at auto repair shops can add an additional $150 to $300, depending on the shop's hourly rates and the complexity of the repair. It is advisable to contact local auto repair shops for accurate pricing based on the vehicle's make and model, as well as the extent of the repair needed.
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