P067F 2018 Chevrolet Silverado Code - Cylinder 6 Glow Plug Control Circuit High Voltage
Quick Answer
The P067F diagnostic trouble code (DTC) indicates that there is a high voltage condition detected in the glow plug control circuit for cylinder 6 of a 2018 Chevrolet Silverado. Common causes include Faulty glow plug for cylinder 6, Damaged or corroded wiring in the glow plug control circuit, Malfunctioning glow plug relay or 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
- P067F 2018 Chevrolet Silverado indicates Cylinder 6 Glow Plug Control Circuit High Voltage.
- Common causes
- Common causes include Faulty glow plug for cylinder 6, Damaged or corroded wiring in the glow plug control circuit, Malfunctioning glow plug relay or 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.
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Code P067F 2018 Chevrolet Silverado Description
The P067F diagnostic trouble code (DTC) indicates that there is a high voltage condition detected in the glow plug control circuit for cylinder 6 of a 2018 Chevrolet Silverado. Glow plugs are essential components in diesel engines, as they preheat the combustion chamber to facilitate easier starting, especially in cold conditions. When the Engine Control Module (ECM) detects a voltage level that exceeds the normal operating range for the glow plug circuit, it triggers this code.
Common Causes of P067F 2018 Chevrolet Silverado
- Faulty glow plug for cylinder 6.
- Damaged or corroded wiring in the glow plug control circuit.
- Malfunctioning glow plug relay or control module.
- Short circuit in the glow plug circuit.
- Issues with the Engine Control Module (ECM) programming or failure.
Symptoms of P067F 2018 Chevrolet Silverado
- Difficulty starting the engine, especially in cold weather.
- Rough idling or misfiring during initial engine operation.
- Increased exhaust smoke, particularly during startup.
- Illuminated check engine light on the dashboard.
- Poor fuel economy due to inefficient combustion.
How to Fix P067F 2018 Chevrolet Silverado
- Diagnostic Testing: Begin with a thorough diagnostic scan to confirm the P067F code and check for any additional codes that may provide more context.
- Visual Inspection: Inspect the wiring and connectors associated with the glow plug circuit for any signs of damage, corrosion, or loose connections.
- Glow Plug Testing: Remove and test the glow plug for cylinder 6 to determine if it is functioning correctly or if it needs replacement.
- Relay and Circuit Check: Test the glow plug relay and the associated control circuit for proper operation and replace any faulty components.
- ECM Reprogramming: If necessary, reprogram or replace the ECM if it is determined to be the source of the high voltage condition.
Cost to Fix P067F 2018 Chevrolet Silverado
The typical repair costs for addressing a P067F code can vary widely based on the specific issue identified during diagnosis. On average, the cost for parts and labor can range from $200 to $800. This estimate includes glow plugs, wiring repairs, and potential ECM reprogramming or replacement. Labor rates can fluctuate significantly; most auto repair shops charge between $80 and $150 per hour. In metropolitan areas or at dealerships, rates may be higher, while independent shops often offer lower rates. It is advisable to check local rates for a more precise estimate tailored to your specific situation.
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