P068F 2017 Chevrolet Silverado Code - Cylinder 8 Glow Plug Control Circuit High Voltage
Quick Answer
The P068F diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates an issue with the cylinder 8 glow plug control circuit experiencing high voltage. Common causes include Faulty glow plug in cylinder 8, Wiring issues in the glow plug control 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
- P068F 2017 Chevrolet Silverado indicates Cylinder 8 Glow Plug Control Circuit High Voltage.
- Common causes
- Common causes include Faulty glow plug in cylinder 8, Wiring issues in the glow plug control 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 P068F 2017 Chevrolet Silverado Description
The P068F diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates an issue with the cylinder 8 glow plug control circuit experiencing high voltage. Glow plugs are essential components in diesel engines that help with cold starts by heating the combustion chamber. When the engine is cold, the glow plug control module sends a signal to the glow plugs to heat up, aiding in the combustion process. In this case, the control circuit for the glow plug in cylinder 8 is detecting a voltage higher than normal, which can lead to various performance issues.
Common Causes of P068F 2017 Chevrolet Silverado
- Faulty glow plug in cylinder 8.
- Wiring issues in the glow plug control circuit.
- Malfunctioning glow plug control module.
- Software malfunction in the engine control unit.
- Corrosion or damage to electrical connections related to the glow plug system.
Symptoms of P068F 2017 Chevrolet Silverado
- Difficulty starting the engine, especially in cold weather.
- Rough idling or engine misfires.
- Reduced fuel efficiency.
- Illumination of the check engine light.
- Engine performance issues, such as lack of power or acceleration.
How to Fix P068F 2017 Chevrolet Silverado
- Begin by diagnosing the specific cause of the high voltage in the cylinder 8 glow plug control circuit using a diagnostic scanner.
- Inspect the glow plug in cylinder 8 for any signs of damage or malfunction and replace if necessary.
- Check the wiring and connections in the glow plug control circuit for any faults, corrosion, or damage, and repair as needed.
- Test the glow plug control module for proper functioning and replace if it is found to be faulty.
- Clear the DTC from the vehicle's computer system and test the vehicle to ensure that the issue has been resolved.
Cost to Fix P068F 2017 Chevrolet Silverado
The cost of repairing a cylinder 8 glow plug control circuit high voltage issue in a 2017 Chevrolet Silverado can vary depending on the specific cause of the problem and the labor rates in your area. Typically, the cost of parts such as a glow plug, wiring repairs, or a control module can range from $100 to $300. Labor costs can add an additional $100 to $300, bringing the total repair cost to approximately $200 to $600. It is advisable to contact local auto repair shops for accurate estimates based on your vehicle's make and model. Keep in mind that rates can vary based on location, shop rates, and the complexity of the repair.
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Frequently Asked Questions about P068F 2017 Chevrolet Silverado Code
1. What does the OBDII code P068F mean on a 2017 Chevrolet Silverado?
P068F indicates an issue with the Cylinder 8 Glow Plug Control Circuit experiencing high voltage, often linked to the glow plug system or related wiring.
2. What are common symptoms of code P068F in a 2017 Chevrolet Silverado?
Symptoms may include difficulty starting the engine, reduced engine performance, increased emissions, and the check engine light being illuminated.
3. What causes the P068F code in the 2017 Chevrolet Silverado?
Common causes include a faulty glow plug for cylinder 8, damaged wiring or connectors in the glow plug circuit, or a malfunctioning glow plug control module.
4. Can you drive with the P068F code on a 2017 Chevrolet Silverado?
While the vehicle may be drivable, ignoring this code can lead to starting issues in cold weather and potentially damage other components over time.
5. How is the P068F code diagnosed on a 2017 Chevrolet Silverado?
A mechanic will typically use a scan tool to read the code, inspect the glow plug and its wiring for damage, and test the glow plug control module for proper operation.
6. How do you fix the P068F code on a 2017 Chevrolet Silverado?
Possible fixes include replacing the faulty glow plug for cylinder 8, repairing or replacing damaged wiring or connectors, or replacing the glow plug control module if needed.
7. How much does it cost to repair code P068F on a 2017 Chevrolet Silverado?
Repair costs can range from $100 to $400 depending on whether the glow plug, wiring, or control module needs replacement.
8. Can a bad glow plug cause P068F on a 2017 Chevrolet Silverado?
Yes, a bad glow plug for cylinder 8 can cause high voltage in the circuit, triggering the P068F code.
9. Does the P068F code affect engine performance on a 2017 Chevrolet Silverado?
Yes, it may impact starting performance, especially in cold weather, and can lead to increased emissions and reduced fuel efficiency.
10. How can I prevent the P068F code from appearing again on my 2017 Chevrolet Silverado?
Regular maintenance of the glow plug system, including checking for damaged wiring and replacing glow plugs as needed, can help prevent this issue.
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