P067B 2018 Chevrolet Silverado Code - Cylinder 4 Glow Plug Control Circuit High Voltage
Quick Answer
The P067B diagnostic trouble code (DTC) indicates a problem with the glow plug control circuit for cylinder 4 in a 2018 Chevrolet Silverado. Common causes include Faulty glow plug for cylinder 4, Wiring issues or short circuits in the glow plug control circuit, Malfunctioning glow plug control module. 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
- P067B 2018 Chevrolet Silverado indicates Cylinder 4 Glow Plug Control Circuit High Voltage.
- Common causes
- Common causes include Faulty glow plug for cylinder 4, Wiring issues or short circuits in the glow plug control circuit, Malfunctioning glow plug control module.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P067B 2018 Chevrolet Silverado Description
The P067B diagnostic trouble code (DTC) indicates a problem with the glow plug control circuit for cylinder 4 in a 2018 Chevrolet Silverado. This code is specific to diesel engines that utilize glow plugs to assist in starting the engine, particularly in cold weather conditions. Glow plugs are heating elements that preheat the combustion chamber to facilitate the ignition of diesel fuel. When the engine control module (ECM) detects a high voltage condition in the glow plug control circuit for cylinder 4, it triggers this code.
Common Causes of P067B 2018 Chevrolet Silverado
- Faulty glow plug for cylinder 4.
- Wiring issues or short circuits in the glow plug control circuit.
- Malfunctioning glow plug control module.
- Poor electrical connections or corroded terminals.
- ECM software issues or faults in the engine control module itself.
Symptoms of P067B 2018 Chevrolet Silverado
- Difficulty starting the engine, particularly in cold weather.
- Rough idling or misfiring of the engine.
- Increased exhaust smoke, especially during startup.
- Illuminated check engine light on the dashboard.
- Decreased fuel efficiency and overall engine performance.
How to Fix P067B 2018 Chevrolet Silverado
- Diagnostic Testing: Begin with a thorough diagnostic scan to confirm the P067B code and check for any additional codes that may provide insight into the issue.
- Visual Inspection: Inspect the wiring and connectors associated with the glow plug control circuit for any signs of damage, corrosion, or loose connections.
- Glow Plug Replacement: If the glow plug for cylinder 4 is found to be faulty, replace it with a new unit to restore proper function.
- Control Module Check: Test the glow plug control module for proper operation. If it is malfunctioning, it may need to be replaced or reprogrammed.
- Clear Codes and Test Drive: After repairs, clear the diagnostic codes and perform a test drive to ensure the issue has been resolved and no new codes appear.
Cost to Fix P067B 2018 Chevrolet Silverado
The typical repair costs for addressing a P067B code can vary widely based on the specific diagnosis and repairs needed. On average, you might expect to pay between $200 and $600, which includes parts and labor. Glow plugs generally range from $20 to $100 each, while labor costs can vary significantly. Most auto repair shops charge between $80 and $150 per hour; however, rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It's advisable to check local rates for a more precise estimate. Additionally, if multiple glow plugs need replacement or if the control module is faulty, costs may increase accordingly.
Need more information about the P067B 2018 Chevrolet Silverado code?
Need more information on how to fix the P067B 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P067B 2018 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P067B 2018 Chevrolet Silverado Code
No Frequently Asked Questions about P067B 2018 Chevrolet Silverado Code found.
Discuss the causes and fixes for P067B 2018 Chevrolet Silverado OBDII Code
Code P067B 2018 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.