Engine-CodesChevrolet – P067A 2014 Chevrolet Silverado

P067A 2014 Chevrolet Silverado Code - Cylinder 4 Glow Plug Control Circuit Low Voltage

Quick Answer

The P067A diagnostic trouble code (DTC) specifically indicates an issue with the glow plug control circuit in cylinder 4 of a 2014 Chevrolet Silverado. Common causes include Faulty glow plug in cylinder 4, Damaged glow plug control module, Wiring issues or short circuits in the glow plug control circuit. 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
P067A 2014 Chevrolet Silverado indicates Cylinder 4 Glow Plug Control Circuit Low Voltage.
Common causes
Common causes include Faulty glow plug in cylinder 4, Damaged glow plug control module, Wiring issues or short circuits in the glow plug control circuit.
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.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P067A 2014 Chevrolet Silverado Description

The P067A diagnostic trouble code (DTC) specifically indicates an issue with the glow plug control circuit in cylinder 4 of a 2014 Chevrolet Silverado. Glow plugs are essential components in diesel engines that help with cold starting 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. In this case, the low voltage in the circuit for cylinder 4 indicates that there is insufficient power reaching the glow plug, which can lead to difficulties starting the engine, especially in cold weather conditions.

OBDII Code P067A 2014 Chevrolet Silverado - Cylinder 4 Glow Plug Control Circuit Low Voltage
P067A 2014 Chevrolet Silverado Code - Cylinder 4 Glow Plug Control Circuit Low Voltage

Common Causes of P067A 2014 Chevrolet Silverado

  1. Faulty glow plug in cylinder 4
  2. Damaged glow plug control module
  3. Wiring issues or short circuits in the glow plug control circuit
  4. Poor connection in the circuit
  5. Corrosion or damage to electrical components

Symptoms of P067A 2014 Chevrolet Silverado

  1. Difficulties starting the engine, especially in cold weather
  2. Rough idling or misfires
  3. Decreased fuel efficiency
  4. Illumination of the check engine light
  5. Increased emissions

How to Fix P067A 2014 Chevrolet Silverado

  1. Begin by diagnosing the specific cause of the low voltage in the glow plug control circuit for cylinder 4 using a diagnostic scanner to retrieve the DTC.
  2. Inspect the glow plug in cylinder 4 for any signs of damage or wear and replace if necessary.
  3. Check the glow plug control module and wiring for any faults, damage, or loose connections, repairing or replacing as needed.
  4. Clear the DTC and reset the vehicle's computer to see if the issue has been resolved.
  5. Test the vehicle to ensure that the glow plug in cylinder 4 is receiving sufficient voltage and functioning correctly.

Cost to Fix P067A 2014 Chevrolet Silverado

The typical repair costs for addressing a P067A DTC in a 2014 Chevrolet Silverado can vary depending on the specific cause of the issue. Generally, replacing a glow plug can cost between $50 to $150 per plug, while a glow plug control module replacement can range from $150 to $300. Labor costs can add an additional $100 to $200, with total repair costs potentially ranging from $200 to $500 or more. It's important to note that these estimates are approximate, and actual costs may vary based on factors such as location, vehicle make and model, and the extent of the repairs needed. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate.

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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.

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