P1339 2017 Chevrolet Silverado Code - Cylinder 2 Glow Plug Offset Exceeded Learning Limit
Quick Answer
The P1339 diagnostic trouble code (DTC) for the 2017 Chevrolet Silverado specifically points to an issue with the glow plug in cylinder 2 exceeding the learning limit offset. Common causes include Faulty glow plug in cylinder 2, Wiring issues or electrical connections related to the glow plug, ECM software or calibration issues. 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
- P1339 2017 Chevrolet Silverado indicates Cylinder 2 Glow Plug Offset Exceeded Learning Limit.
- Common causes
- Common causes include Faulty glow plug in cylinder 2, Wiring issues or electrical connections related to the glow plug, ECM software or calibration issues.
- 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 P1339 2017 Chevrolet Silverado Description
The P1339 diagnostic trouble code (DTC) for the 2017 Chevrolet Silverado specifically points to an issue with the glow plug in cylinder 2 exceeding the learning limit offset. Glow plugs are crucial components in diesel engines, especially during cold starts, as they heat the combustion chamber to aid in starting the engine. When the glow plug offset exceeds the learning limit, it means that the engine control module (ECM) is detecting a discrepancy between the expected and actual performance of the glow plug in cylinder 2. This can lead to difficulties in starting the engine, reduced fuel efficiency, increased emissions, and overall poor engine performance.
Common Causes of P1339 2017 Chevrolet Silverado
- Faulty glow plug in cylinder 2.
- Wiring issues or electrical connections related to the glow plug.
- ECM software or calibration issues.
- Injector problems affecting cylinder 2.
- Carbon buildup in the combustion chamber affecting the glow plug's performance.
Symptoms of P1339 2017 Chevrolet Silverado
- Difficulties starting the engine, especially in cold weather.
- Rough idle or misfires while the engine is running.
- Decreased fuel efficiency and increased emissions.
- Engine hesitation or lack of power during acceleration.
- Illumination of the check engine light on the dashboard.
How to Fix P1339 2017 Chevrolet Silverado
- Begin by diagnosing the specific cause of the issue using a scan tool to read the DTC and pinpoint the problem area.
- Inspect the glow plug in cylinder 2 for proper operation and replace if necessary.
- Check the wiring and electrical connections related to the glow plug for any damage or corrosion, repairing or replacing as needed.
- Perform a thorough cleaning of the combustion chamber to remove any carbon buildup that may be affecting the glow plug's performance.
- Reset the ECM and perform a test drive to ensure the issue has been resolved and the DTC does not reappear.
Cost to Fix P1339 2017 Chevrolet Silverado
The typical repair costs for addressing a P1339 DTC in a 2017 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, replacing a glow plug and addressing related wiring or electrical issues can range from $200 to $500, including parts and labor. However, additional costs may apply if injector problems or extensive carbon buildup are identified during the diagnostic process. It is recommended to consult with a qualified mechanic or repair shop for a more accurate cost estimate based on the individual circumstances of the vehicle. Keep in mind that repair costs can fluctuate based on location, vehicle make and model, and the extent of the repairs needed.
Tech Notes for P1339 2017 Chevrolet Silverado
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Frequently Asked Questions about P1339 2017 Chevrolet Silverado Code
What does the OBDII code P1339 mean on a 2017 Chevrolet Silverado?
The P1339 code indicates that the Cylinder 2 Glow Plug Offset has exceeded the learning limit, suggesting an issue with the glow plug system or related components.
What are the common symptoms of the P1339 code?
Symptoms may include difficulty starting the engine in cold weather, a check engine light, rough idling, or reduced engine performance.
What causes the P1339 code on a 2017 Chevrolet Silverado?
Common causes include a faulty glow plug, damaged glow plug control module, poor electrical connections, or excessive carbon buildup around the glow plug.
Can I drive my Silverado with the P1339 code active?
While the vehicle may still drive, ignoring the code can lead to harder starts in cold weather and potential damage to the glow plug system over time.
How do I diagnose the P1339 code?
Diagnosing involves scanning the vehicle with an OBDII scanner, inspecting the glow plug and its wiring, and testing the glow plug control module for proper operation.
What tools are needed to fix the P1339 code?
You’ll typically need an OBDII scanner, a multimeter for electrical testing, and basic hand tools to replace the glow plug or repair wiring.
How do I fix the P1339 code?
Repairs may include replacing the faulty glow plug, cleaning carbon buildup around the glow plug, repairing damaged wiring, or replacing the glow plug control module if needed.
What’s the average cost to repair the P1339 code?
Costs can range from $100 to $300 for parts and labor, depending on whether just the glow plug or additional components like the control module need replacement.
How can I prevent the P1339 code from coming back?
Regular maintenance, including inspecting and cleaning the glow plugs and ensuring proper electrical connections, can help prevent this code from recurring.
Will resetting the code fix the issue permanently?
Resetting the code may clear the check engine light temporarily, but the underlying issue must be resolved to prevent the problem from returning.
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