P067A 2014 GMC Sierra Code - Cylinder 4 Glow Plug Control Circuit Low Voltage
Quick Answer
The diagnostic trouble code P067A for a 2014 GMC Sierra indicates a problem with the Cylinder 4 Glow Plug Control Circuit having low voltage. Common causes include Faulty glow plug in Cylinder 4, Wiring issues or a short circuit 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
- P067A 2014 GMC Sierra indicates Cylinder 4 Glow Plug Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty glow plug in Cylinder 4, Wiring issues or a short circuit 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 P067A 2014 GMC Sierra Description
The diagnostic trouble code P067A for a 2014 GMC Sierra indicates a problem with the Cylinder 4 Glow Plug Control Circuit having low voltage. Glow plugs are crucial components in diesel engines that help with cold start-ups by preheating the combustion chamber. When the control circuit for the glow plug in Cylinder 4 is registering low voltage, it can lead to issues with starting the engine, reduced performance, and increased emissions. This can be caused by a faulty glow plug, wiring issues, or problems with the control module.
Common Causes of P067A 2014 GMC Sierra
- Faulty glow plug in Cylinder 4.
- Wiring issues or a short circuit in the glow plug control circuit.
- Malfunctioning glow plug control module.
- Corrosion or damage to the connectors in the circuit.
- Electrical issues such as a weak battery or alternator.
Symptoms of P067A 2014 GMC Sierra
- Difficulty starting the engine, especially in cold weather.
- Rough idling or misfires.
- Decreased fuel efficiency.
- Check Engine Light illuminated on the dashboard.
- Increased emissions.
How to Fix P067A 2014 GMC Sierra
- Begin by diagnosing the specific cause of the low voltage issue by testing the glow plug, wiring, and control module.
- Replace the faulty glow plug in Cylinder 4 if it is determined to be the cause.
- Check and repair any damaged wiring or connectors in the glow plug control circuit.
- Test the glow plug control module and replace if necessary.
- Clear the diagnostic trouble code and test the vehicle to ensure the issue is resolved.
Cost to Fix P067A 2014 GMC Sierra
The cost of repairing a Cylinder 4 Glow Plug Control Circuit Low Voltage issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, the cost for parts such as a glow plug or control module can range from $50 to $200. Labor costs can vary but typically fall between $100 to $300. Therefore, the total repair cost could range from $150 to $500. It's recommended to obtain quotes from local auto repair shops to get a more accurate estimate based on your location and vehicle.
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