P067E 2018 GMC Sierra Code - Cylinder 6 Glow Plug Control Circuit Low Voltage
Quick Answer
The diagnostic trouble code P067E for a 2018 GMC Sierra indicates an issue with the Cylinder 6 Glow Plug Control Circuit experiencing low voltage. Common causes include Faulty glow plug in Cylinder 6, Wiring issues or poor electrical connections in the glow plug control circuit, 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
- P067E 2018 GMC Sierra indicates Cylinder 6 Glow Plug Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty glow plug in Cylinder 6, Wiring issues or poor electrical connections in the glow plug control circuit, 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.
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Code P067E 2018 GMC Sierra Description
The diagnostic trouble code P067E for a 2018 GMC Sierra indicates an issue with the Cylinder 6 Glow Plug Control Circuit experiencing low voltage. Glow plugs are essential components in diesel engines, aiding in the combustion process by heating the air in the combustion chamber before ignition. When a glow plug control circuit is experiencing low voltage, it can lead to difficulties starting the engine, reduced fuel efficiency, and overall poor engine performance.
Common Causes of P067E 2018 GMC Sierra
- Faulty glow plug in Cylinder 6.
- Wiring issues or poor electrical connections in the glow plug control circuit.
- Malfunctioning glow plug control module.
- Low battery voltage affecting the glow plug circuit.
- Engine control module (ECM) failure or programming issues.
Symptoms of P067E 2018 GMC Sierra
- Difficulty starting the engine, especially in cold weather.
- Rough idling or engine misfires.
- Reduced fuel efficiency.
- Illuminated check engine light.
- Decreased engine power and performance.
How to Fix P067E 2018 GMC Sierra
- Begin by conducting a visual inspection of the glow plug in Cylinder 6 and the associated wiring for any visible damage or corrosion.
- Use a multimeter to test the voltage in the glow plug control circuit to determine if it falls below the specified threshold.
- Replace the faulty glow plug if necessary, ensuring it is the correct part for Cylinder 6.
- Inspect and repair any damaged wiring or connectors in the glow plug control circuit.
- If the issue persists, diagnose the glow plug control module and ECM for potential failures and replace as needed.
Cost to Fix P067E 2018 GMC Sierra
The typical repair costs for addressing a P067E code in a 2018 GMC Sierra can vary depending on the specific cause and required parts. Generally, replacing a glow plug can cost between $50 to $150 per plug, while diagnostic labor rates may range from $80 to $150 per hour. Additional costs for wiring repairs, control module replacement, or ECM programming may increase the overall repair expenses. It is advisable to consult with a qualified mechanic or service center for an accurate cost estimate based on the specific diagnosis and repair requirements for your vehicle.
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