Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part that helps start the engine on cold days for cylinder number 6. It's like when a light bulb is not working right because too much electricity is going to it.
The engine control module (ECM) has detected a high voltage condition in the glow plug control circuit for cylinder 6.
The P067F code indicates that the ECM has detected an abnormally high voltage in the glow plug circuit for cylinder 6. This could be due to an issue with the glow plug itself, the wiring, or the control module. Glow plugs are used in diesel engines to preheat the air in the combustion chamber for easier starting, especially in cold conditions.
• Difficulty starting the engine in cold weather
• Check Engine Light illuminated
• Rough idle or misfiring
• Faulty glow plug in cylinder 6
• Damaged wiring or connectors in the glow plug circuit
• Faulty glow plug control module
ECM: Engine Control Module, the computer that controls the engine's functions.
Glow Plug: A device used to preheat the air in a diesel engine's combustion chamber to aid starting.
• Inspect the glow plug and wiring for cylinder 6 for damage.
• Test the glow plug for proper resistance.
• Check the control module for faults.
• Replace the faulty glow plug.
• Repair or replace damaged wiring or connectors.
• Replace the glow plug control module if necessary.
• Multimeter
• Socket set
• Diagnostic scanner
$100 - $300
Moderate
• Ford F-250
• Chevrolet Silverado
• Dodge Ram
• Regularly inspect glow plugs and wiring for wear.
• Ensure proper maintenance of the engine electrical system.
• Use high-quality diesel fuel to prevent deposits.
Sensor Issue
• Have the vehicle inspected by a professional if you experience starting issues.
• Avoid prolonged cranking of the engine to prevent battery drain.
• Consider using a block heater in extremely cold conditions.
Glow plugs may be covered under the vehicle's powertrain warranty. Check with the manufacturer for specific details.
Glow plug issues are common in diesel engines, especially in older models or those used in cold climates.
Moderate – While the vehicle may still operate, starting issues can worsen, especially in cold weather.
Driving with faulty glow plugs can lead to starting issues and increased emissions. It is recommended to address the issue promptly.
• Engine cold start
• Ambient temperature below 40°F
The glow plug for cylinder 6 is located on the engine block, typically near the intake manifold on the passenger side.
Q: Can I drive with a P067F code?
A: Yes, but you may experience starting difficulties, especially in cold weather. It's best to fix it soon.
Q: How do I know if my glow plug is bad?
A: Symptoms include hard starting, rough idle, and a check engine light. Testing with a multimeter can confirm the issue.
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