P067D 2017 GMC Sierra Code - Cylinder 5 Glow Plug Control Circuit High Voltage
Quick Answer
The diagnostic trouble code P067D for a 2017 GMC Sierra indicates an issue with the Cylinder 5 Glow Plug Control Circuit High Voltage. Common causes include Faulty glow plug: A malfunctioning glow plug in cylinder 5 can cause high voltage in the control circuit, Wiring issues: Damaged or corroded wiring connections can lead to high voltage in the glow plug circuit, Faulty glow plug control module: A defective control module can send incorrect voltage signals to the glow plug. 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 2017 GMC Sierra indicates Cylinder 5 Glow Plug Control Circuit High Voltage.
- Common causes
- Common causes include Faulty glow plug: A malfunctioning glow plug in cylinder 5 can cause high voltage in the control circuit, Wiring issues: Damaged or corroded wiring connections can lead to high voltage in the glow plug circuit, Faulty glow plug control module: A defective control module can send incorrect voltage signals to the glow plug.
- 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 2017 GMC Sierra Description
The diagnostic trouble code P067D for a 2017 GMC Sierra indicates an issue with the Cylinder 5 Glow Plug Control Circuit High Voltage. Glow plugs are essential components in diesel engines that help with cold starting by heating the combustion chamber before ignition. In this case, the control circuit for the glow plug in cylinder 5 is experiencing high voltage, which can lead to various performance issues.
Common Causes of P067D 2017 GMC Sierra
- Faulty glow plug: A malfunctioning glow plug in cylinder 5 can cause high voltage in the control circuit.
- Wiring issues: Damaged or corroded wiring connections can lead to high voltage in the glow plug circuit.
- Faulty glow plug control module: A defective control module can send incorrect voltage signals to the glow plug.
- ECM (Engine Control Module) malfunction: Issues with the ECM can also result in high voltage in the glow plug circuit.
Symptoms of P067D 2017 GMC Sierra
- Hard starting: Difficulty starting the engine, especially in cold weather.
- Rough idling: The engine may run rough or unevenly at idle.
- Decreased fuel efficiency: High voltage in the glow plug circuit can affect fuel combustion efficiency.
- Check engine light: The illumination of the check engine light on the dashboard.
How to Fix P067D 2017 GMC Sierra
- Diagnose the issue: Use a diagnostic scanner to retrieve the trouble code and pinpoint the exact cause of the high voltage in the glow plug control circuit.
- Inspect glow plug and wiring: Check the condition of the glow plug in cylinder 5 and inspect the wiring for any damage or corrosion.
- Test glow plug control module: Test the glow plug control module to ensure it is functioning correctly.
- Replace faulty components: Replace any faulty glow plugs, wiring, or control modules as needed to resolve the high voltage issue.
- Clear trouble codes: After completing the repairs, clear the trouble codes and test the vehicle to ensure the issue has been resolved.
Cost to Fix P067D 2017 GMC Sierra
The cost of repairing a Cylinder 5 Glow Plug Control Circuit High Voltage issue can vary depending on the specific cause of the problem and the cost of parts and labor. On average, the repair cost for this type of issue can range from $200 to $500. This estimate includes the cost of diagnostic testing, replacement parts, and labor. However, it's important to note that actual repair costs can differ based on the location of the repair shop, the make and model of the vehicle, and the extent of the repairs needed. It's recommended to obtain quotes from local auto repair shops to get a more accurate estimate for this repair.
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