P067B 2017 GMC Sierra Code - Cylinder 4 Glow Plug Control Circuit High Voltage
Quick Answer
The P067B diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a problem with the Cylinder 4 Glow Plug Control Circuit High Voltage. Common causes include Faulty glow plug in cylinder 4, Wiring or connection issues 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
- P067B 2017 GMC Sierra indicates Cylinder 4 Glow Plug Control Circuit High Voltage.
- Common causes
- Common causes include Faulty glow plug in cylinder 4, Wiring or connection issues 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 P067B 2017 GMC Sierra Description
The P067B diagnostic trouble code (DTC) for a 2017 GMC Sierra indicates a problem with the Cylinder 4 Glow Plug Control Circuit High Voltage. Glow plugs are essential components in diesel engines that help with cold starting by heating the combustion chamber. In this case, the control circuit for the glow plug in cylinder 4 is experiencing high voltage, which can lead to various issues in the vehicle's performance.
Common Causes of P067B 2017 GMC Sierra
- Faulty glow plug in cylinder 4.
- Wiring or connection issues in the glow plug control circuit.
- Malfunctioning glow plug control module.
- Electrical system issues, such as a short circuit or high voltage supply.
- Corrosion or damage to the connectors in the glow plug circuit.
Symptoms of P067B 2017 GMC Sierra
- Difficulty starting the engine, especially in cold weather.
- Rough idling or misfiring of the engine.
- Decreased fuel efficiency.
- Illumination of the Check Engine Light.
- Increased emissions from the vehicle.
How to Fix P067B 2017 GMC Sierra
- Begin by diagnosing the specific cause of the high voltage in the glow plug control circuit, using a multimeter to test the voltage levels.
- Inspect the glow plug in cylinder 4 for any signs of damage or overheating, and replace it if necessary.
- Check the wiring and connections in the glow plug control circuit for any faults, repairing or replacing any damaged components.
- Test the glow plug control module to ensure it is functioning correctly, replacing it if needed.
- Clear the DTC from the vehicle's computer system and test the vehicle to ensure the issue has been resolved.
Cost to Fix P067B 2017 GMC Sierra
The typical repair costs for addressing a Cylinder 4 Glow Plug Control Circuit High Voltage issue in a 2017 GMC Sierra can range from $200 to $500, including parts and labor. However, it's important to note that 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. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may offer lower rates. It's recommended to inquire about local rates for a more accurate estimate.
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