P0674 Chrysler Code - Cylinder 4 Glow Plug Circuit Fault
Quick Answer
The P0674 Chrysler code indicates a fault in the glow plug circuit for cylinder 4. Common causes include Faulty glow plug in cylinder 4, Wiring issues or a poor connection in the glow plug circuit, Corrosion or damage to the glow plug harness. 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
- P0674 Chrysler indicates Cylinder 4 Glow Plug Circuit Fault.
- Common causes
- Common causes include Faulty glow plug in cylinder 4, Wiring issues or a poor connection in the glow plug circuit, Corrosion or damage to the glow plug harness.
- 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 P0674 Chrysler Description
The P0674 Chrysler code indicates a fault in the glow plug circuit for cylinder 4. Glow plugs are essential components in a diesel engine that help with cold starts by heating up the combustion chamber to aid in ignition. When there is a fault in the glow plug circuit, it can cause issues with starting the vehicle, especially in cold weather. This can lead to poor performance, reduced fuel efficiency, and potential long-term damage to the engine if not addressed promptly.
Common Causes of P0674 Chrysler
- Faulty glow plug in cylinder 4.
- Wiring issues or a poor connection in the glow plug circuit.
- Corrosion or damage to the glow plug harness.
- Issues with the glow plug control module.
- Engine control module (ECM) failure.
Symptoms of P0674 Chrysler
- Hard starting or difficulty starting the vehicle, particularly in cold weather.
- Rough idling or misfiring of the engine.
- Decreased fuel efficiency.
- Illumination of the Check Engine Light.
- Increased emissions or black smoke coming from the exhaust.
How to Fix P0674 Chrysler
- Begin by diagnosing the specific issue causing the fault code using a diagnostic scanner.
- Inspect the glow plug in cylinder 4 for functionality and replace if necessary.
- Check the wiring and connections in the glow plug circuit for any damage or corrosion, repairing or replacing as needed.
- Test the glow plug control module and ECM for proper operation, replacing if faulty.
- Clear the fault code from the vehicle's computer and test the vehicle to ensure the issue has been resolved.
Cost to Fix P0674 Chrysler
The repair costs for a cylinder 4 glow plug circuit fault can vary depending on the specific cause of the issue and the make and model of the vehicle. On average, the cost for parts such as a glow plug and control module can range from $50 to $200. Labor costs typically range from $100 to $300, with total repair costs falling between $150 to $500. It's important to note that these are rough estimates, and actual costs may differ based on location and other factors.
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