P0671 2016 Chevrolet Silverado Code - Cylinder 1 Glow Plug Circuit Fault
Quick Answer
The diagnostic trouble code P0671 for a 2016 Chevrolet Silverado indicates a fault in the glow plug circuit of cylinder 1. Common causes include Faulty glow plug in cylinder 1, Wiring or connection issues 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
- P0671 2016 Chevrolet Silverado indicates Cylinder 1 Glow Plug Circuit Fault.
- Common causes
- Common causes include Faulty glow plug in cylinder 1, Wiring or connection issues 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 P0671 2016 Chevrolet Silverado Description
The diagnostic trouble code P0671 for a 2016 Chevrolet Silverado indicates a fault in the glow plug circuit of cylinder 1. Glow plugs are essential components in diesel engines, as they heat up the combustion chamber to facilitate cold starts by igniting the air-fuel mixture. When the glow plug circuit malfunctions, it can lead to difficult starting, rough idling, decreased fuel efficiency, and even engine misfires. If left unaddressed, this issue can cause damage to the engine and other related components.
Common Causes of P0671 2016 Chevrolet Silverado
- Faulty glow plug in cylinder 1.
- Wiring or connection issues in the glow plug circuit.
- Malfunctioning glow plug control module.
- Corrosion or damage to the electrical components.
- Issues with the engine's temperature sensor affecting the glow plug operation.
Symptoms of P0671 2016 Chevrolet Silverado
- Difficult starting, especially in cold weather.
- Rough idling or vibrations when the engine is running.
- Decreased fuel efficiency due to inefficient combustion.
- Engine misfires or hesitation during acceleration.
- Illumination of the check engine light on the dashboard.
How to Fix P0671 2016 Chevrolet Silverado
- Begin by diagnosing the specific cause of the fault using a diagnostic scanner to pinpoint the issue.
- Inspect the glow plug in cylinder 1 to check for any damage or wear.
- Test the wiring and connections in the glow plug circuit for continuity and proper voltage.
- Replace the faulty glow plug, control module, or any damaged wiring as needed.
- Clear the diagnostic trouble codes and test the vehicle to ensure the issue has been resolved.
Cost to Fix P0671 2016 Chevrolet Silverado
The typical repair costs for addressing a cylinder 1 glow plug circuit fault in a 2016 Chevrolet Silverado can range from $150 to $400, including parts and labor. However, the final cost may vary depending on the specific components that need replacement and the labor rates at the auto repair shop. It's recommended to consult with a professional mechanic for a more accurate estimate based on your vehicle's condition and location.
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Frequently Asked Questions about P0671 2016 Chevrolet Silverado Code
1. What does the OBDII code P0671 mean for a 2016 Chevrolet Silverado?
P0671 indicates a fault in the glow plug circuit for cylinder 1, which may affect cold engine starting performance.
2. What are the symptoms of code P0671 in a 2016 Chevrolet Silverado?
Symptoms may include difficulty starting the engine in cold weather, rough idling, reduced fuel efficiency, and the check engine light being illuminated.
3. What causes the P0671 code on a 2016 Chevrolet Silverado?
Common causes include a faulty glow plug in cylinder 1, damaged glow plug wiring or connectors, a malfunctioning glow plug control module, or electrical issues such as corrosion or shorts in the circuit.
4. Can I drive my 2016 Chevrolet Silverado with code P0671?
While the truck may still be drivable, you could experience poor cold-start performance and reduced engine efficiency. It's best to address the issue promptly.
5. How do I diagnose the P0671 code on my Silverado?
Start by inspecting the glow plug for cylinder 1, checking for physical damage or corrosion. Use a multimeter to test the resistance of the glow plug and inspect wiring for shorts or damage.
6. How do I fix code P0671 on a 2016 Chevrolet Silverado?
Repair may involve replacing the glow plug for cylinder 1, repairing damaged wiring, cleaning corroded connectors, or replacing the glow plug control module if it’s faulty.
7. How much does it cost to repair the P0671 code on a Silverado?
Glow plug replacement typically costs $50 to $150 for parts and $100 to $250 for labor, depending on your location. Wiring repairs or module replacement may add to the cost.
8. Is the P0671 code specific to cold weather conditions?
Yes, the glow plug system is primarily used to assist in starting the engine during cold weather, so the issue may become more noticeable in colder climates.
9. How can I prevent a P0671 code from occurring in the future?
Regularly inspect and maintain the glow plug system, check for corroded or damaged wiring, and ensure the control module is functioning properly.
10. Will a faulty glow plug in cylinder 1 damage my engine?
While a faulty glow plug won’t directly damage the engine, prolonged issues can lead to harder starts, inefficient combustion, and increased wear on other components.
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