P0673 Ford Code - Cylinder 3 Glow Plug Circuit Fault
Quick Answer
The P0673 Ford diagnostic trouble code indicates a fault in the cylinder 3 glow plug circuit. Common causes include Failed or faulty glow plug in cylinder 3, Damaged wiring or connectors in the glow plug circuit, Malfunctioning PCM that controls the glow plug operation. 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
- P0673 Ford indicates Cylinder 3 Glow Plug Circuit Fault.
- Common causes
- Common causes include Failed or faulty glow plug in cylinder 3, Damaged wiring or connectors in the glow plug circuit, Malfunctioning PCM that controls the glow plug operation.
- 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 P0673 Ford Description
The P0673 Ford diagnostic trouble code indicates a fault in the cylinder 3 glow plug circuit. Glow plugs are essential components in diesel engines that help initiate the combustion process by heating the air in the combustion chamber, especially during cold starts. A malfunction in the glow plug circuit can lead to difficulty starting the engine, reduced engine performance, increased emissions, and potential damage to other engine components over time.
Common Causes of P0673 Ford
- Failed or faulty glow plug in cylinder 3.
- Damaged wiring or connectors in the glow plug circuit.
- Malfunctioning PCM that controls the glow plug operation.
- Poor grounding connections affecting the glow plug circuit.
- Corrosion or buildup on the glow plug, inhibiting proper heating.
Symptoms of P0673 Ford
- Difficulty starting the engine, especially in cold weather.
- Rough idling or misfires, particularly when the engine is cold.
- Reduced engine performance and acceleration.
- Increased exhaust emissions and black smoke from the tailpipe.
- Illumination of the check engine light on the dashboard.
How to Fix P0673 Ford
- Begin by conducting a visual inspection of the glow plug, wiring, and connectors in cylinder 3.
- Test the resistance of the glow plug to determine if it is functioning correctly.
- Check the continuity of the wiring harness and connectors to ensure proper electrical connections.
- If the glow plug is faulty, replace it with a new one designed for your vehicle's make and model.
- Clear the diagnostic trouble codes, reset the PCM, and test the vehicle to ensure the issue has been resolved.
Cost to Fix P0673 Ford
The cost of repairing a cylinder 3 glow plug circuit fault can vary depending on the vehicle's make and model, the quality of parts used, and labor rates in your area. On average, the cost of replacing a single glow plug ranges from $50 to $150, while labor costs can range from $100 to $200. Therefore, the total repair cost for this issue may fall between $150 and $350. It is advisable to consult with a certified mechanic or dealership to obtain a more accurate estimate based on your specific circumstances.
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