P066E 2017 Chevrolet Silverado Code - Cylinder 3 Glow Plug Control Circuit Low Voltage
Quick Answer
The P066E diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates a problem with the cylinder 3 glow plug control circuit experiencing low voltage. Common causes include Faulty glow plug control module, Damaged wiring harness or connectors, Defective glow plugs. 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
- P066E 2017 Chevrolet Silverado indicates Cylinder 3 Glow Plug Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty glow plug control module, Damaged wiring harness or connectors, Defective glow plugs.
- 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 P066E 2017 Chevrolet Silverado Description
The P066E diagnostic trouble code (DTC) for a 2017 Chevrolet Silverado indicates a problem with the cylinder 3 glow plug control circuit experiencing low voltage. Glow plugs are essential components in diesel engines that help with cold starts by heating the combustion chamber. When the glow plug control circuit is not receiving sufficient voltage, it can lead to difficulties starting the engine, reduced fuel efficiency, and potential engine misfires.
Common Causes of P066E 2017 Chevrolet Silverado
- Faulty glow plug control module
- Damaged wiring harness or connectors
- Defective glow plugs
- ECM software issues
- Electrical system malfunctions
Symptoms of P066E 2017 Chevrolet Silverado
- Hard starting or extended cranking time
- Rough idling or engine misfires
- Decreased fuel efficiency
- Illumination of the check engine light
- Reduced engine performance
How to Fix P066E 2017 Chevrolet Silverado
- Begin by diagnosing the specific cause of the low voltage issue using a diagnostic scanner to retrieve the fault codes and pinpoint the problem area.
- Inspect the glow plug control module, wiring harness, and connectors for any visible damage or corrosion. Replace any components that are faulty.
- Test the glow plugs for proper functionality using a multimeter. Replace any defective glow plugs.
- Check the ECM for any software updates or reprogramming that may be necessary to address the low voltage issue.
- Clear the DTCs from the ECM memory and perform a test drive to ensure that the repair was successful.
Cost to Fix P066E 2017 Chevrolet Silverado
The typical repair costs for addressing a P066E code in a 2017 Chevrolet Silverado can range from $200 to $500, depending on the specific cause of the issue and the cost of parts and labor. This estimate includes the cost of diagnostic time, replacement components, and labor charges. It's important to note that actual repair costs can vary based on the location, dealership rates, and the extent of the repair needed. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate.
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