P068E 2014 Chevrolet Silverado Code - Cylinder 8 Glow Plug Control Circuit Low Voltage
Quick Answer
The diagnostic trouble code P068E for a 2014 Chevrolet Silverado indicates an issue with the cylinder 8 glow plug control circuit experiencing low voltage. Common causes include Faulty glow plug: The glow plug itself may be malfunctioning, leading to low voltage readings, Wiring issues: There could be a wiring problem, such as a short or open circuit, that is causing the low voltage, Glow plug control module failure: The control module responsible for sending signals to the glow plug may be faulty. 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
- P068E 2014 Chevrolet Silverado indicates Cylinder 8 Glow Plug Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty glow plug: The glow plug itself may be malfunctioning, leading to low voltage readings, Wiring issues: There could be a wiring problem, such as a short or open circuit, that is causing the low voltage, Glow plug control module failure: The control module responsible for sending signals to the glow plug may be faulty.
- 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 P068E 2014 Chevrolet Silverado Description
The diagnostic trouble code P068E for a 2014 Chevrolet Silverado indicates an issue with the cylinder 8 glow plug control circuit experiencing low voltage. Glow plugs are crucial components in diesel engines, especially during cold starts, as they heat up the combustion chamber to aid in ignition. When the control circuit for the glow plug in cylinder 8 is detecting low voltage, it means that the glow plug may not be heating up properly, which can lead to difficulties in starting the engine, reduced performance, and potential long-term damage to the engine.
Common Causes of P068E 2014 Chevrolet Silverado
- Faulty glow plug: The glow plug itself may be malfunctioning, leading to low voltage readings.
- Wiring issues: There could be a wiring problem, such as a short or open circuit, that is causing the low voltage.
- Glow plug control module failure: The control module responsible for sending signals to the glow plug may be faulty.
- Poor electrical connection: A loose or corroded connection can result in low voltage reaching the glow plug.
- Engine control module (ECM) issue: A problem with the ECM that controls the glow plug circuit could also trigger this code.
Symptoms of P068E 2014 Chevrolet Silverado
- Difficulty starting the engine, especially in cold weather.
- Rough idling or misfires.
- Decreased engine performance and power.
- Increased emissions.
- Check Engine Light (CEL) illuminated on the dashboard.
How to Fix P068E 2014 Chevrolet Silverado
- Diagnose the issue: Use a scan tool to read the trouble code and pinpoint the exact cause of the low voltage in the glow plug circuit.
- Inspect the glow plug: Test the glow plug in cylinder 8 to determine if it is functioning correctly. Replace if necessary.
- Check wiring and connections: Inspect the wiring harness and connections for any damage, corrosion, or loose connections. Repair or replace as needed.
- Test the glow plug control module: Verify the functionality of the control module and replace if found to be faulty.
- Clear the trouble code: After completing the repairs, clear the code from the ECM's memory and test the vehicle to ensure the issue has been resolved.
Cost to Fix P068E 2014 Chevrolet Silverado
The typical cost to repair a cylinder 8 glow plug control circuit low voltage issue in a 2014 Chevrolet Silverado can range from $200 to $500, including parts and labor. However, the actual cost may vary depending on the extent of the problem, the cost of parts, and the labor rates charged by the repair shop. It's recommended to get a detailed quote from a trusted mechanic to determine the exact cost for your specific vehicle. Keep in mind that diagnostic time and labor rates can vary, so it's advisable to shop around for the best deal.
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Frequently Asked Questions about P068E 2014 Chevrolet Silverado Code
What does the OBDII code P068E mean for a 2014 Chevrolet Silverado?
P068E indicates a problem with the cylinder 8 glow plug control circuit, specifically low voltage detected by the PCM.
What are the symptoms of P068E on a 2014 Chevrolet Silverado?
Symptoms may include difficulty starting the engine, rough idling, decreased fuel efficiency, and an illuminated check engine light.
What causes the P068E code on a 2014 Silverado?
Common causes include a faulty glow plug, damaged wiring or connectors in the glow plug circuit, a bad glow plug control module, or corrosion in electrical connections.
Can I drive my 2014 Chevrolet Silverado with the P068E code?
While the truck may still be drivable, prolonged operation with this code could lead to starting issues or further damage to the glow plug circuit.
How do I diagnose the P068E code on a 2014 Silverado?
Check for damaged wiring, corroded connectors, or a failed glow plug. Using a multimeter to test voltage in the glow plug circuit can help pinpoint the issue.
How can the P068E code be fixed on a 2014 Chevrolet Silverado?
Repairs may include replacing the faulty glow plug, repairing or replacing damaged wiring, cleaning corroded connectors, or replacing the glow plug control module.
How much does it cost to fix the P068E code on a 2014 Silverado?
Costs can vary but typically range from $100 to $300 for parts and labor, depending on whether the glow plug or control module requires replacement.
Do I need special tools to fix the P068E code on my Silverado?
Basic tools like a multimeter, socket set, and wiring repair kit are often sufficient. Advanced diagnostics tools may be needed for PCM troubleshooting.
Can a faulty PCM cause the P068E code on a 2014 Silverado?
While rare, a malfunctioning PCM can misinterpret voltage signals and trigger the P068E code; testing the PCM may be necessary if other fixes fail.
What happens if I ignore the P068E code on my Silverado?
Ignoring this fault can lead to worsening cold start issues, decreased engine performance, and potential damage to other components in the glow plug system.
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