AutoCodesChevrolet – P067D 2016 Chevrolet Silverado

P067D 2016 Chevrolet Silverado Code - Cylinder 5 Glow Plug Control Circuit High Voltage

Quick Answer

n the diesel engine, air alone is compressed in the cylinder. Common causes include Faulty cylinder #5 glow plug, Cylinder #5 glow plug harness is open or shorted, Cylinder #5 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
P067D 2016 Chevrolet Silverado indicates Cylinder 5 Glow Plug Control Circuit High Voltage.
Common causes
Common causes include Faulty cylinder #5 glow plug, Cylinder #5 glow plug harness is open or shorted, Cylinder #5 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.
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Code Popularity 293
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 24, 2024
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Code P067D 2016 Chevrolet Silverado Description

n the diesel engine, air alone is compressed in the cylinder. Then, after the air has been compressed, a charge of fuel is sprayed into the cylinder and ignition occurs, due to the heat of compression. Eight glow plugs are used as an aid to starting.
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.
OBDII Code P067D 2016 Chevrolet Silverado - Cylinder 5 Glow Plug Control Circuit High Voltage - AutoCodes.com
P067D 2016 Chevrolet Silverado Code - Cylinder 5 Glow Plug Control Circuit High Voltage

What are the Possible Causes of the DTC P067D 2016 Chevrolet Silverado?

  • Faulty cylinder #5 glow plug
  • Cylinder #5 glow plug harness is open or shorted
  • Cylinder #5 glow plug circuit poor electrical connection
  • Faulty Glow Plug Control Module

How to Fix the DTC P067D 2016 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 P067D 2016 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.

Need more information about the P067D 2016 Chevrolet Silverado code?

Need more information on how to fix the P067D 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P067D 2016 Chevrolet Silverado Code

1. What does the OBDII code P067D mean on a 2016 Chevrolet Silverado?

P067D indicates a high voltage issue in the glow plug control circuit for cylinder 5, which is essential for proper engine operation in cold conditions.

2. What are the symptoms of code P067D on a 2016 Chevrolet Silverado?

Common symptoms include difficulty starting in cold weather, increased exhaust smoke during startup, and reduced engine performance.

3. What causes the P067D code on a 2016 Chevrolet Silverado?

Possible causes include a faulty glow plug, damaged wiring or connectors in the glow plug circuit, or a malfunctioning glow plug control module.

4. Can I drive my 2016 Chevrolet Silverado with code P067D?

While the truck may still run, driving with this code can lead to poor cold starts and increased engine wear over time. It’s best to address the issue promptly.

5. How do I diagnose the P067D code on a 2016 Chevrolet Silverado?

Start by inspecting the wiring and connectors for cylinder 5’s glow plug, testing the glow plug itself, and checking the glow plug control module for faults.

6. How do I fix the P067D code on a 2016 Chevrolet Silverado?

Repairs may involve replacing the faulty glow plug, repairing damaged wiring or connectors, or replacing the glow plug control module if necessary.

7. How much does it cost to repair the P067D code on a 2016 Chevrolet Silverado?

Repair costs vary but typically range from $100 to $300, depending on whether the glow plug, wiring, or control module needs replacement.

8. What tools are needed to fix the P067D code on a 2016 Chevrolet Silverado?

You’ll need a multimeter to test electrical connections, a socket set for removing the glow plug, and possibly a scan tool to clear the code after repairs.

9. Can a bad glow plug cause other issues in a 2016 Chevrolet Silverado?

Yes, a faulty glow plug can lead to hard starts, increased emissions, and reduced fuel efficiency, especially in cold weather.

10. How do I prevent the P067D code from recurring on my 2016 Chevrolet Silverado?

Regular maintenance, including inspecting glow plugs and their wiring, can help prevent issues and ensure reliable cold-weather performance.

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