What is the fault code P0672? What is the Cylinder 2 Glow Plug Circuit/Open Malfunction description? How do I fix the P0672 fault code What are the symptoms and causes for the P0672 fault code
What is the P0672 fault code? What does it signify?
P0672 is a code. “Cylinder 2 Glow Plug Circuit/Open” . This code is set when a malfunction occurs in the cylinder 2 glowplug circuit.
Diesel vehicles have a tendency to lose the temperature of the compressed gas quickly when it is cold. This problem is solved by a glow plug (preheating element). The glow plugs are usually mounted through the cylinder heads as close to the combustion chambers as possible.
The powertrain control module (PCM) controls glow plugs. It monitors coolant and oil temperatures, transmission temperature, and intake air temperature. If the PCM senses cold engine, the PCM will activate the glow plug to help with starting. Code P0672 is activated if the PCM detects the glow plug not heating up. This code usually indicates a fault in the electrical circuit and points at the glow plug of #2.
When the engine is hot, however, glow plugs will not be required. To prevent damage to the engine and glow plugs, the PCM switches off the glow control system once the coolant temperature has reached a certain threshold.
What is the P0672 Fault Code and Why Does It Happen?
These are the most common reasons that P0672 fault codes are triggered:
- – Defective glow plug, Cylinder 2
- – Defective timer or glow plug control module
- – In the glow plug circuit, damaged, defective, corroded wires, harnesses or associated connectors
- – Defective glowplug relay
- Blown fuse
What are the symptoms for P0672 Malfunction Codes?
You may experience the following symptoms if your vehicle has the code P0672:
- – Illumination for the check engine light
- – Waiting too long before the engine starts
- In cold weather, the engine might not start at all
- – The Preheat light doesn’t turn on or stay on constantly
- – When the vehicle is starting, white smoke comes from the exhaust
- – The engine may lose power while it warms up.
- – Unusually loud engine sound
- Engine misfire
How do I fix the P0672 fault code?
This code should be diagnosed first if a P0670 code (Glow Plug Control Modular Circuit Malfunction Code) is present.
There are several repairs that can resolve the P0672 fault code.
- Repair or replacement of damaged, corrosion-prone fused wires, and loose connectors
- Repair or replacement bent or damaged pins for electrical connectors
- Repairing short or open circuit problems and replacing blown fuse
- – Replacing defective glow plug in cylinder 2.
- Replacing a faulty glowing plug relay
- – Replacing a faulty timer or glow plug control module
- Clear all codes, test your vehicle, and check the PCM again to make sure that there are no errors.
How Serious Is the P0672 Fault Code
A code P0672 is not likely to prevent a vehicle starting. The engine can still run if only one spark plug has failed. It is possible to make it more difficult to start the engine in cold weather. However, this can be caused by time and temperature changes. This can result in a loss in power and acceleration.
