P0672 Isuzu Code - Cylinder 2 Glow Plug Circuit Fault
Quick Answer
The P0672 diagnostic trouble code (DTC) for Isuzu vehicles indicates a fault in the cylinder 2 glow plug circuit. Common causes include Faulty glow plug: A defective glow plug in cylinder 2 can trigger this code, Wiring issues: Damage or corrosion in the wiring harness connected to the glow plug can disrupt the circuit, Glow plug control module failure: A malfunctioning control module that regulates the glow plug operation can cause this fault. 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 Isuzu indicates Cylinder 2 Glow Plug Circuit Fault.
- Common causes
- Common causes include Faulty glow plug: A defective glow plug in cylinder 2 can trigger this code, Wiring issues: Damage or corrosion in the wiring harness connected to the glow plug can disrupt the circuit, Glow plug control module failure: A malfunctioning control module that regulates the glow plug operation can cause this fault.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0672 Isuzu Description
The P0672 diagnostic trouble code (DTC) for Isuzu vehicles indicates a fault in the cylinder 2 glow plug circuit. Glow plugs are essential components in diesel engines as they help heat the combustion chamber to facilitate cold starts. When the engine is cold, the glow plugs heat up to ensure proper ignition of the air-fuel mixture.
Common Causes of P0672 Isuzu
- Faulty glow plug: A defective glow plug in cylinder 2 can trigger this code.
- Wiring issues: Damage or corrosion in the wiring harness connected to the glow plug can disrupt the circuit.
- Glow plug control module failure: A malfunctioning control module that regulates the glow plug operation can cause this fault.
- ECM malfunction: An issue with the Engine Control Module (ECM) responsible for monitoring the glow plug circuit could also be a potential cause.
Symptoms of P0672 Isuzu
- Hard starting: Difficulty starting the engine, especially in cold weather, can be a common symptom of a faulty glow plug in cylinder 2.
- Rough idling: A rough or unstable idle could indicate a problem with the glow plug circuit, affecting the combustion process.
- Decreased fuel efficiency: Malfunctioning glow plugs can lead to incomplete combustion, resulting in poor fuel efficiency.
- Check engine light: The illumination of the check engine light on the dashboard is a common indicator of issues with the glow plug circuit.
How to Fix P0672 Isuzu
- Diagnose the issue: Use a scan tool to retrieve the trouble codes and perform a visual inspection of the glow plug in cylinder 2 and its associated wiring.
- Test the glow plug: Check the resistance of the glow plug to determine if it is functioning correctly.
- Inspect wiring: Examine the wiring harness for any damage or corrosion, repairing or replacing as necessary.
- Check the glow plug control module: Test the control module to ensure it is sending the proper signals to the glow plug.
- Clear codes and test: After completing repairs, clear the DTCs and test the vehicle to verify that the issue has been resolved.
Cost to Fix P0672 Isuzu
The cost of repairing a Cylinder 2 Glow Plug Circuit Fault can vary depending on the extent of the issue and the specific components that need to be replaced. On average, the cost of replacing a glow plug can range from $50 to $150 per plug, while the cost of a control module can be around $150 to $300. Labor costs can add an additional $80 to $150 per hour, with the total repair cost typically falling between $200 to $500. It is important to note that actual costs may vary based on the vehicle's make and model, as well as the labor rates in your area. Be sure to consult a professional mechanic for an accurate estimate.
When is the Code Detected?
Need more information about the P0672 Isuzu code?
Need more information on how to fix the P0672 Isuzu code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0672 Isuzu code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0672 Isuzu Code
1. What are the common symptoms of OBDII code P0672 in an Isuzu related to the Cylinder 2 Glow Plug Circuit Fault?
- Common symptoms include hard starting, rough idling, reduced engine performance, and increased exhaust smoke.
2. What causes the Cylinder 2 Glow Plug Circuit Fault (P0672) in an Isuzu?
- The code P0672 is typically triggered by a faulty glow plug in cylinder 2, a damaged glow plug wiring harness, or a malfunction in the glow plug control module.
3. How can I diagnose the Cylinder 2 Glow Plug Circuit Fault in my Isuzu?
- Diagnose the issue by checking the glow plug in cylinder 2 for continuity, inspecting the wiring harness for damage, and testing the glow plug control module for proper functionality.
4. Can I still drive my Isuzu with OBDII code P0672 active?
- It is not recommended to drive the vehicle with the Cylinder 2 Glow Plug Circuit Fault as it can lead to engine performance issues and potential damage if left unresolved.
5. What is the typical repair process for addressing the P0672 code in an Isuzu?
- The repair process involves identifying the faulty component (glow plug, wiring harness, or control module), replacing the defective part, clearing the code, and testing the system to ensure proper functioning.
6. Are there any preventive measures to avoid the Cylinder 2 Glow Plug Circuit Fault in my Isuzu?
- To prevent the recurrence of the fault, it is advisable to perform regular maintenance checks on the glow plug system and promptly address any issues detected during routine inspections.
7. Can a DIY enthusiast fix the P0672 code in an Isuzu, or is professional assistance required?
- While some experienced DIY enthusiasts may be able to replace a faulty glow plug or wiring harness, diagnosing and repairing issues related to the glow plug circuit may require professional assistance for accurate troubleshooting.
8. How long does it typically take to repair the Cylinder 2 Glow Plug Circuit Fault in an Isuzu?
- The repair time can vary depending on the extent of the issue and the availability of parts, but a skilled technician can usually address the P0672 code within a few hours to a day.
9. Will resetting the OBDII code P0672 on my Isuzu make the issue disappear permanently?
- Resetting the code without addressing the underlying problem will only temporarily clear the fault indicator. It is crucial to diagnose and repair the root cause to prevent the code from reoccurring.
10. Is the Cylinder 2 Glow Plug Circuit Fault a common issue in Isuzu vehicles?
- Glow plug circuit faults, including the Cylinder 2 Glow Plug Circuit Fault (P0672), can occur in Isuzu vehicles, especially in diesel engines, due to the wear and tear of components over time. Regular maintenance can help prevent such issues.
Discuss the causes and fixes for P0672 Isuzu OBDII Code
Code P0672 Isuzu comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.