P0672 2014 GMC Sierra Code - Cylinder 2 Glow Plug Circuit Fault
Quick Answer
The diagnostic trouble code P0672 for a 2014 GMC Sierra indicates a fault in the glow plug circuit for cylinder 2. Common causes include Faulty glow plug in cylinder 2, Damaged wiring or connectors in the glow plug 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
- P0672 2014 GMC Sierra indicates Cylinder 2 Glow Plug Circuit Fault.
- Common causes
- Common causes include Faulty glow plug in cylinder 2, Damaged wiring or connectors in the glow plug 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 P0672 2014 GMC Sierra Description
The diagnostic trouble code P0672 for a 2014 GMC Sierra indicates a fault in the glow plug circuit for cylinder 2. Glow plugs are essential components in diesel engines that help with cold starts by heating the air in the combustion chamber. When the engine is cold, the glow plugs heat up to ensure proper ignition of the fuel. In this case, a fault in the circuit for cylinder 2's glow plug means that there is an issue with the electrical connection or the glow plug itself.
Common Causes of P0672 2014 GMC Sierra
- Faulty glow plug in cylinder 2.
- Damaged wiring or connectors in the glow plug circuit.
- Malfunctioning glow plug control module.
- Corrosion or poor connections in the electrical system.
- Issues with the vehicle's battery or charging system affecting the glow plug operation.
Symptoms of P0672 2014 GMC Sierra
- Difficulty starting the engine, especially in cold weather.
- Rough idling or engine misfires.
- Decreased fuel efficiency.
- Engine stalling.
- Illumination of the check engine light on the dashboard.
How to Fix P0672 2014 GMC Sierra
- Begin by diagnosing the specific cause of the fault using a diagnostic scanner to confirm the P0672 code.
- Inspect the glow plug in cylinder 2 to determine if it is faulty and needs replacement.
- Check the wiring and connectors in the glow plug circuit for any damage or corrosion, repairing or replacing as necessary.
- Test the glow plug control module to ensure it is functioning correctly, replacing it if needed.
- Clear the diagnostic trouble codes, reset the engine control module, and test the vehicle to verify that the issue has been resolved.
Cost to Fix P0672 2014 GMC Sierra
The typical repair costs for addressing a cylinder 2 glow plug circuit fault in a 2014 GMC Sierra can range from $150 to $400, including parts and labor. However, actual costs may vary depending on the specific diagnosis time, labor rates, and parts pricing at auto repair shops. It is recommended to inquire about local rates to obtain a more accurate estimate for this repair. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more affordable options.
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