P067B 2017 Chevrolet Silverado Code - Cylinder 4 Glow Plug Control Circuit High Voltage
Quick Answer
The P067B diagnostic trouble code (DTC) indicates a high voltage condition in the glow plug control circuit for cylinder 4 of a 2017 Chevrolet Silverado. Common causes include Faulty glow plug for cylinder 4, Damaged or corroded wiring or connectors in the glow plug circuit, Malfunctioning Engine Control Module (ECM). 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 2017 Chevrolet Silverado indicates Cylinder 4 Glow Plug Control Circuit High Voltage.
- Common causes
- Common causes include Faulty glow plug for cylinder 4, Damaged or corroded wiring or connectors in the glow plug circuit, Malfunctioning Engine Control Module (ECM).
- 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 P067B 2017 Chevrolet Silverado Description
The P067B diagnostic trouble code (DTC) indicates a high voltage condition in the glow plug control circuit for cylinder 4 of a 2017 Chevrolet Silverado. Glow plugs are essential components in diesel engines, as they preheat the combustion chamber to facilitate easier starting, especially in cold weather. When the Engine Control Module (ECM) detects a voltage level that exceeds the expected range for the glow plug circuit, it triggers this code.
Common Causes of P067B 2017 Chevrolet Silverado
- Faulty glow plug for cylinder 4.
- Damaged or corroded wiring or connectors in the glow plug circuit.
- Malfunctioning Engine Control Module (ECM).
- Issues with the vehicle's battery or charging system.
- Short circuit or open circuit in the glow plug control circuit.
Symptoms of P067B 2017 Chevrolet Silverado
- Difficulty starting the engine, especially in cold weather.
- Rough idling or misfiring during engine operation.
- Increased exhaust smoke, particularly during startup.
- Reduced fuel efficiency and overall engine performance.
- Illuminated check engine light on the dashboard.
How to Fix P067B 2017 Chevrolet Silverado
- Diagnostic Testing: Begin by using an OBD-II scanner to confirm the P067B code and check for any additional codes that may indicate related issues.
- Visual Inspection: Inspect the wiring and connectors associated with the glow plug circuit for signs of damage, corrosion, or loose connections.
- Glow Plug Testing: Test the glow plug for cylinder 4 using a multimeter to check for proper resistance. Replace the glow plug if it is found to be faulty.
- Wiring Repair: If damaged wiring or connectors are found, repair or replace them as necessary to restore proper electrical flow in the circuit.
- ECM Check: If the glow plug and wiring are in good condition, further diagnose the ECM to ensure it is functioning correctly and not misreading voltage levels.
Cost to Fix P067B 2017 Chevrolet Silverado
The typical repair costs for addressing a P067B code can vary widely based on the specific diagnosis and repair needed. On average, the cost for parts such as a glow plug can range from $30 to $100, while labor costs can vary significantly. Most auto repair shops charge between $80 and $150 per hour, with total labor time for this type of repair typically ranging from 1 to 3 hours. Therefore, the total cost for repair, including parts and labor, could range from approximately $150 to $600.
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