P067D 2018 Chevrolet Silverado Code - Cylinder 5 Glow Plug Control Circuit High Voltage
Quick Answer
The diagnostic trouble code P067D for a 2018 Chevrolet Silverado indicates an issue with the glow plug control circuit in cylinder 5, specifically detecting high voltage. Common causes include Faulty glow plug in cylinder 5, Damaged wiring harness or connector in the glow plug circuit, Malfunctioning glow plug control module. 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
- P067D 2018 Chevrolet Silverado indicates Cylinder 5 Glow Plug Control Circuit High Voltage.
- Common causes
- Common causes include Faulty glow plug in cylinder 5, Damaged wiring harness or connector in the glow plug circuit, Malfunctioning glow plug control module.
- 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 P067D 2018 Chevrolet Silverado Description
The diagnostic trouble code P067D for a 2018 Chevrolet Silverado indicates an issue with the glow plug control circuit in cylinder 5, specifically detecting high voltage. Glow plugs are essential components in diesel engines, as they heat the air in the combustion chamber to facilitate cold starts. When the control circuit for the glow plug in cylinder 5 is experiencing high voltage, it can lead to various performance issues and potential long-term effects if left unaddressed.
Common Causes of P067D 2018 Chevrolet Silverado
- Faulty glow plug in cylinder 5
- Damaged wiring harness or connector in the glow plug circuit
- Malfunctioning glow plug control module
- Issues with the engine control module (ECM)
- Other related sensor malfunctions
Symptoms of P067D 2018 Chevrolet Silverado
- Hard starting or extended cranking time
- Rough idling or misfiring
- Decreased fuel efficiency
- Illumination of the check engine light
- Increased emissions output
How to Fix P067D 2018 Chevrolet Silverado
- Begin by diagnosing the specific cause of the high voltage in the glow plug control circuit, using a diagnostic scanner to retrieve freeze frame data and pinpoint the issue.
- Inspect the glow plug in cylinder 5 for any signs of damage or malfunction, and replace if necessary.
- Check the wiring harness and connector for the glow plug circuit, repairing or replacing any damaged components.
- Test the glow plug control module and related sensors for proper functionality, replacing any faulty parts.
- Clear the diagnostic trouble codes, reset the ECM, and test the vehicle to ensure the issue has been resolved.
Cost to Fix P067D 2018 Chevrolet Silverado
The typical repair costs for addressing a cylinder 5 glow plug control circuit high voltage issue in a 2018 Chevrolet Silverado can vary depending on the specific cause of the problem. Parts such as a new glow plug, wiring harness, or control module can range from $50 to $200 each, with labor costs typically adding another $100 to $300. Overall, the total repair cost could range from $200 to $600 or more, depending on the extent of the repairs needed. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.
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