Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the heater in the engine that helps start the car when it's cold isn't working right for one of the cylinders.
The P06C7 code indicates an issue with the glow plug in cylinder 3, which is not functioning as expected.
The glow plug in cylinder 3 is not operating correctly. Glow plugs are used in diesel engines to heat the air in the cylinders to a temperature that allows the fuel to ignite. This code suggests that the glow plug might be faulty, the wiring could be damaged, or there might be an issue with the control module.
• Difficulty starting the engine in cold weather
• Engine misfire
• Illuminated check engine light
• Faulty glow plug in cylinder 3
• Damaged wiring or connectors
• Faulty glow plug control module
Glow Plug: A device used to heat the air in a diesel engine cylinder to aid in starting.
Cylinder: A chamber where the fuel is burned in an engine.
• Scan the vehicle for codes and freeze frame data
• Inspect the glow plug and its wiring for damage
• Test the glow plug for proper operation
• Replace the faulty glow plug
• Repair or replace damaged wiring or connectors
• Replace the glow plug control module if necessary
• OBD-II scanner
• Multimeter
• Socket set
$100 - $300
Moderate
• Ford F-250
• Chevrolet Silverado 2500
• Dodge Ram 2500
• Regularly inspect glow plugs and wiring
• Perform routine maintenance checks
• Use high-quality fuel to prevent deposits
Engine Performance
• Have the vehicle inspected by a professional if you experience starting issues.
• Avoid using the vehicle in extremely cold conditions until repaired.
Check with the vehicle manufacturer for warranty coverage on engine components.
Glow plug issues have been common in diesel engines, especially in colder climates where starting conditions are more demanding.
Moderate – The vehicle may still operate, but starting issues can worsen in cold weather.
Driving with a faulty glow plug can lead to increased emissions and engine performance issues.
• Engine must be cold
• Ensure battery is fully charged
The glow plug for cylinder 3 is located on the engine block, typically near the cylinder head.
Q: Can I drive with a P06C7 code?
A: It's possible to drive, but you may experience starting issues, especially in cold weather.
Q: How can I prevent glow plug issues?
A: Regular maintenance and using high-quality fuel can help prevent glow plug issues.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
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Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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Fitment Required · Vehicle-fitment part
Commonly relevant for misfire, ignition-efficiency, and some drivability-related repairs.
Misfire and ignition-related faults commonly involve spark plugs as part of the repair path.
Check the correct plug type, gap, and engine application for your vehicle.
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Fitment Required · Vehicle-fitment part
Relevant when the fault points toward ignition-coil performance or cylinder-specific ignition issues.
Some ignition faults involve coil performance or cylinder-specific coil problems.
Match the coil to your engine and confirm the failed component before ordering.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.