P06C7 2014 Chevrolet Silverado Code - Cylinder 3 Glow Plug Incorrect
Quick Answer
n the diesel engine, air alone is compressed in the cylinder. Common causes include Faulty cylinder #1 glow plug, Cylinder #1 glow plug harness is open or shorted, Cylinder #1 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
- P06C7 2014 Chevrolet Silverado indicates Cylinder 3 Glow Plug Incorrect.
- Common causes
- Common causes include Faulty cylinder #1 glow plug, Cylinder #1 glow plug harness is open or shorted, Cylinder #1 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 P06C7 2014 Chevrolet Silverado 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. A Diagnostic Trouble Code (DTC) will be set if the Glow Plug resistance is not within a calibrated range.
What are the Possible Causes of the DTC P06C7 2014 Chevrolet Silverado?
- Faulty cylinder #1 glow plug
- Cylinder #1 glow plug harness is open or shorted
- Cylinder #1 glow plug circuit poor electrical connection
- Faulty Glow Plug Control Module
How to Fix the DTC P06C7 2014 Chevrolet Silverado?
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 P06C7 2014 Chevrolet Silverado 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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Frequently Asked Questions about P06C7 2014 Chevrolet Silverado Code
1. What does the OBDII code P06C7 mean on a 2014 Chevrolet Silverado?
P06C7 indicates "Cylinder 3 Glow Plug Incorrect," meaning the glow plug in cylinder 3 is not functioning as expected.
2. What are the symptoms of code P06C7 in a 2014 Chevrolet Silverado?
Common symptoms include difficulty starting the engine in cold weather, rough idling, reduced fuel efficiency, and potential engine misfires.
3. What causes code P06C7 in a Chevrolet Silverado?
Causes may include a faulty cylinder 3 glow plug, damaged glow plug wiring, a malfunctioning glow plug control module, or corrosion in the electrical connections.
4. Can I still drive my 2014 Chevrolet Silverado with a P06C7 code?
While the truck may still be drivable, starting and engine performance issues, especially in cold weather, could worsen. It’s best to address the issue promptly.
5. How do I diagnose a P06C7 code on a 2014 Chevrolet Silverado?
Diagnosis involves inspecting the cylinder 3 glow plug, checking for continuity with a multimeter, inspecting wiring and connectors for damage or corrosion, and testing the glow plug control module.
6. How is a P06C7 code fixed on a Chevrolet Silverado?
Common fixes include replacing the faulty cylinder 3 glow plug, repairing or replacing damaged wiring, cleaning corroded connectors, or replacing the glow plug control module if needed.
7. How much does it cost to repair a P06C7 code on a 2014 Chevrolet Silverado?
Repair costs vary, but replacing a glow plug typically costs $100-$250, including parts and labor. Additional repairs like wiring fixes may increase costs.
8. Can a bad glow plug affect engine performance?
Yes, a faulty glow plug can lead to hard starts, rough idling, misfires, and reduced fuel efficiency, especially in colder temperatures.
9. Do I need special tools to fix a P06C7 code?
Basic tools like a multimeter, socket set, and possibly a glow plug socket are typically sufficient. For advanced diagnostics, an OBDII scanner may be required.
10. How can I prevent a P06C7 code from occurring again?
Regular maintenance, including checking glow plugs and their wiring for wear or corrosion, can help prevent this code from recurring.
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