P067F Chevrolet Code - Cylinder 6 Glow Plug Control Circuit High Voltage
Quick Answer
n the diesel engine, air alone is compressed in the cylinder. Common causes include Faulty cylinder #6 glow plug, Cylinder #6 glow plug harness is open or shorted, Cylinder #6 glow plug circuit poor electrical connection. 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
- P067F Chevrolet indicates Cylinder 6 Glow Plug Control Circuit High Voltage.
- Common causes
- Common causes include Faulty cylinder #6 glow plug, Cylinder #6 glow plug harness is open or shorted, Cylinder #6 glow plug circuit poor electrical connection.
- 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.
Code P067F Chevrolet Description
Control of the glow plugs is accomplished by the Glow Plug Control Module. The nominal voltage for the glow plugs is 5.4 volts. When the ignition is turned On, the Glow Plug Control Module applies 7.2 V for 2.2 s, then 5.7 V for 0.8 s, and then 5.4 V until 1200°C (2192°F) is reached. The maximum voltage of the system is 10 V. While the engine is running the voltage will vary between 4.7 - 10 V when in closed loop control to maintain a glow plug temperature that ranges from 1150° - 1180°C (2102° - 2156°F). The temperature and the power consumption are controlled between the Engine Control Module (ECM) and the Glow Plug Control Module within a wide range to suit the engine's pre-heating requirements. Each glow plug is energized individually. This capability yields more optimum heat times for the glow plugs, thus pre - glow times can be kept to a minimum for a short wait to crank times and maximum glow plug durability.
What are the Possible Causes of the DTC P067F Chevrolet?
- Faulty cylinder #6 glow plug
- Cylinder #6 glow plug harness is open or shorted
- Cylinder #6 glow plug circuit poor electrical connection
- Faulty Glow Plug Control Module
How to Fix the DTC P067F Chevrolet?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P067F Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Chevrolet Models
- P067F 2014 Chevrolet Silverado — Cylinder 6 Glow Plug Control Circuit High Voltage
- P067F 2015 Chevrolet Silverado — Cylinder 6 Glow Plug Control Circuit High Voltage
- P067F 2016 Chevrolet Silverado — Cylinder 6 Glow Plug Control Circuit High Voltage
- P067F 2017 Chevrolet Silverado — Cylinder 6 Glow Plug Control Circuit High Voltage
- P067F 2018 Chevrolet Silverado — Cylinder 6 Glow Plug Control Circuit High Voltage
Frequently Asked Questions about P067F Chevrolet Code
1. What does the OBDII code P067F mean for a Chevrolet?
P067F indicates a high voltage issue in the Cylinder 6 Glow Plug Control Circuit, which helps preheat the cylinder for better combustion in diesel engines.
2. What are the symptoms of the P067F code in a Chevrolet?
Common symptoms include difficulty starting the engine, rough idling, reduced engine performance, and an illuminated Check Engine Light.
3. What causes the P067F code to appear in a Chevrolet?
Possible causes include a faulty glow plug, damaged wiring or connectors in the glow plug circuit, a malfunctioning glow plug control module, or high resistance in the circuit.
4. Can I drive my Chevrolet with the P067F code?
Driving with this code is not recommended, as it can lead to poor engine performance and starting issues, especially in cold weather.
5. How do I diagnose the P067F code on a Chevrolet?
Diagnosing this code involves inspecting the glow plug for Cylinder 6, checking the wiring and connectors for damage, and testing the glow plug control module for proper operation.
6. How can I fix the P067F code on my Chevrolet?
Repairs may include replacing the faulty glow plug, repairing or replacing damaged wiring, or replacing the glow plug control module if it has failed.
7. How much does it cost to repair the P067F code on a Chevrolet?
The repair cost can vary but typically ranges from $100 to $300, depending on whether parts like the glow plug or wiring need replacement.
8. Can a bad battery cause the P067F code in a Chevrolet?
Yes, a weak or failing battery can contribute to electrical issues, including high voltage problems in the glow plug circuit.
9. How do I prevent the P067F code from recurring in my Chevrolet?
Regular maintenance, inspecting the glow plugs and wiring, and ensuring the battery and alternator are in good condition can help prevent this code from reappearing.
10. Does the P067F code only affect diesel Chevrolet vehicles?
Yes, this code specifically applies to diesel engines that use glow plugs to assist with cold starts. Gasoline engines do not use glow plugs.
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