P0137 Chevrolet Code - HO2S Circuit Low Voltage Bank 1 Sensor 2
Quick Answer
The P0137 code for Chevrolet vehicles indicates a problem with the HO2S (Heated Oxygen Sensor) circuit having low voltage for Bank 1 Sensor 2. Common causes include Faulty Oxygen Sensor: The most common cause of this code is a malfunctioning Bank 1 Sensor 2 HO2S, Wiring Issues: Damaged or corroded wiring connections leading to the sensor can cause low voltage readings, Exhaust System Leaks: Any leaks in the exhaust system before the sensor can affect its readings. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0137 Chevrolet indicates HO2S Circuit Low Voltage Bank 1 Sensor 2.
- Common causes
- Common causes include Faulty Oxygen Sensor: The most common cause of this code is a malfunctioning Bank 1 Sensor 2 HO2S, Wiring Issues: Damaged or corroded wiring connections leading to the sensor can cause low voltage readings, Exhaust System Leaks: Any leaks in the exhaust system before the sensor can affect its readings.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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Code P0137 Chevrolet Description
The P0137 code for Chevrolet vehicles indicates a problem with the HO2S (Heated Oxygen Sensor) circuit having low voltage for Bank 1 Sensor 2. This sensor is responsible for monitoring the oxygen levels in the exhaust gases after they have passed through the catalytic converter. The data collected by this sensor is crucial for the engine control module to adjust the air-fuel mixture for optimal combustion. When the voltage output from the sensor is lower than expected, it can lead to poor engine performance, decreased fuel efficiency, and increased emissions.
Common Causes of P0137 Chevrolet
- Faulty Oxygen Sensor: The most common cause of this code is a malfunctioning Bank 1 Sensor 2 HO2S.
- Wiring Issues: Damaged or corroded wiring connections leading to the sensor can cause low voltage readings.
- Exhaust System Leaks: Any leaks in the exhaust system before the sensor can affect its readings.
- Engine Misfires: Misfires can lead to unburned fuel entering the exhaust stream, impacting the sensor's readings.
- Exhaust System Damage: Physical damage to the exhaust system, such as dents or cracks, can affect sensor performance.
Symptoms of P0137 Chevrolet
- Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
- Poor Fuel Economy: A malfunctioning HO2S sensor can cause the engine to run rich or lean, leading to decreased fuel efficiency.
- Rough Idle: The engine may idle roughly or inconsistently due to incorrect air-fuel mixture adjustments.
- Decreased Engine Performance: You may notice a lack of power or hesitation during acceleration.
- Failed Emissions Test: If the issue is not addressed, it could lead to increased emissions, potentially causing the vehicle to fail emissions testing.
How to Fix P0137 Chevrolet
- Diagnose the Issue: Use a scan tool to confirm the P0137 code and verify the sensor's voltage readings.
- Replace Oxygen Sensor: Replace the Bank 1 Sensor 2 HO2S with a new, OEM equivalent sensor.
- Check Wiring: Inspect the wiring harness for any damage or corrosion and repair or replace as needed.
- Clear Codes: Clear the diagnostic trouble codes stored in the engine control module and perform a test drive to ensure the issue is resolved.
- Retest: After repairs are completed, recheck the sensor's voltage readings to ensure they are within the expected range.
Cost to Fix P0137 Chevrolet
The cost of repairing a P0137 code on a Chevrolet vehicle can vary depending on the specific model and labor rates in your area. On average, replacing an oxygen sensor can range from $150 to $400, including parts and labor. Additional costs may apply if wiring repairs or other components need attention. It's advisable to contact local auto repair shops for accurate pricing based on your vehicle's make and model.
Tech Notes for P0137 Chevrolet
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Information for Specific Chevrolet Models
- P0137 2014 Chevrolet Silverado — HO2S Circuit Low Voltage Bank 1 Sensor 2
- P0137 2015 Chevrolet Silverado — HO2S Circuit Low Voltage Bank 1 Sensor 2
- P0137 2016 Chevrolet Silverado — HO2S Circuit Low Voltage Bank 1 Sensor 2
- P0137 2017 Chevrolet Silverado — HO2S Circuit Low Voltage Bank 1 Sensor 2
- P0137 2018 Chevrolet Silverado — HO2S Circuit Low Voltage Bank 1 Sensor 2
Frequently Asked Questions about P0137 Chevrolet Code
1. What are the common symptoms of OBDII code P0137 on a Chevrolet?
- Common symptoms include decreased fuel efficiency, rough idling, engine hesitation, and the illumination of the check engine light.
2. What does the HO2S Circuit Low Voltage Bank 1 Sensor 2 code mean for a Chevrolet vehicle?
- This code indicates that the downstream oxygen sensor in Bank 1 is registering a voltage lower than normal, potentially causing issues with the fuel mixture.
3. What are the possible causes of the P0137 code on a Chevrolet?
- Possible causes include a faulty oxygen sensor, damaged wiring or connectors, exhaust leaks, engine misfires, or issues with the fuel system.
4. How can I diagnose the cause of the P0137 code on my Chevrolet?
- To diagnose the issue, you can use an OBDII scanner to read the code and monitor the oxygen sensor's voltage output. Additionally, inspect the sensor, wiring, and related components for any signs of damage.
5. Is it safe to continue driving with the P0137 code on a Chevrolet?
- While the vehicle may still be driveable with this code, it is not recommended to ignore it, as it can lead to further engine problems and decreased fuel efficiency.
6. Can I repair the P0137 code on a Chevrolet myself?
- Depending on your level of automotive expertise, you may be able to replace the oxygen sensor or repair wiring issues yourself. However, it is recommended to consult a professional if you are unsure.
7. How much does it typically cost to repair the P0137 code on a Chevrolet?
- The cost of repairs can vary depending on the exact cause of the code and the labor rates in your area. On average, expect to pay between $100 to $300 for parts and labor.
8. Are there any maintenance tips to prevent the P0137 code from reoccurring on a Chevrolet?
- Regularly inspecting and maintaining the oxygen sensors, fuel system, and exhaust system can help prevent issues that may trigger the P0137 code in the future.
9. Can a bad catalytic converter cause the P0137 code on a Chevrolet?
- A failing catalytic converter can sometimes lead to issues with oxygen sensor readings, potentially triggering the P0137 code. It is recommended to inspect the converter as part of the diagnostic process.
10. How long does it typically take to repair the P0137 code on a Chevrolet?
- The repair time can vary based on the specific issue causing the code. In general, a straightforward oxygen sensor replacement can be completed in about an hour, while more complex issues may take longer.
Discuss the causes and fixes for P0137 Chevrolet OBDII Code
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That is a real good post with easy solution. I have undergone many problems since the purchase so i need to check on it. I a sure this problem will arise sooner or later. Hope this post will be of help during the time of need.
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