P143E 2015 GMC Sierra Code - Fuel Level Sensor 2 Reference Feedback Performance
Quick Answer
The P143E diagnostic trouble code (DTC) on a 2015 GMC Sierra indicates a problem with Fuel Level Sensor 2 Reference Feedback Performance. Common causes include Faulty fuel level sensor, Wiring issues or shorts in the sensor circuit, Corrosion or damage to sensor connections. 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
- P143E 2015 GMC Sierra indicates Fuel Level Sensor 2 Reference Feedback Performance.
- Common causes
- Common causes include Faulty fuel level sensor, Wiring issues or shorts in the sensor circuit, Corrosion or damage to sensor connections.
- 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 P143E 2015 GMC Sierra Description
The P143E diagnostic trouble code (DTC) on a 2015 GMC Sierra indicates a problem with Fuel Level Sensor 2 Reference Feedback Performance. This code is specifically related to the fuel level sensor in the vehicle. The fuel level sensor is responsible for measuring the amount of fuel in the tank and sending that information to the vehicle's engine control module (ECM). The ECM uses this information to calculate fuel consumption, optimize engine performance, and display the fuel level on the dashboard.
Common Causes of P143E 2015 GMC Sierra
- Faulty fuel level sensor
- Wiring issues or shorts in the sensor circuit
- Corrosion or damage to sensor connections
- ECM malfunction or software issues
- Fuel system contamination affecting sensor performance
Symptoms of P143E 2015 GMC Sierra
- Inaccurate fuel level readings on the dashboard
- Check engine light illuminated on the dashboard
- Fluctuating fuel gauge readings
- Poor fuel efficiency
- Engine stalling or misfiring
How to Fix P143E 2015 GMC Sierra
- Diagnose the issue using a scan tool to confirm the P143E code and check the fuel level sensor's performance.
- Inspect the sensor, wiring, and connections for any signs of damage or corrosion.
- Replace the fuel level sensor if it is found to be faulty, ensuring proper installation and connection.
- Clear the DTC and reset the ECM to relearn the fuel level sensor's parameters.
- Test drive the vehicle to ensure the issue has been resolved and the fuel level readings are accurate.
Cost to Fix P143E 2015 GMC Sierra
The cost of repairing a P143E code on a 2015 GMC Sierra can vary depending on the specific cause of the issue and the parts and labor required. On average, the cost of replacing a fuel level sensor can range from $150 to $300, including parts and labor. However, additional diagnostic time and any necessary repairs to the wiring or connections can increase the overall cost. It is recommended to consult with a qualified mechanic or auto repair shop for a more accurate estimate based on the specific circumstances of the vehicle. Labor rates at auto repair shops typically range from $80 to $150 per hour.
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Frequently Asked Questions about P143E 2015 GMC Sierra Code
What does the OBDII code P143E mean on a 2015 GMC Sierra?
The P143E code indicates a problem with the fuel level sensor 2 reference feedback performance, meaning the sensor is not providing accurate data to the engine control module.
What are the symptoms of P143E on a 2015 GMC Sierra?
Common symptoms include erratic fuel gauge readings, a check engine light, inaccurate fuel level information, or issues with the vehicle's range calculations.
What causes the P143E code to appear?
The code can be triggered by a faulty fuel level sensor, wiring or connection issues, corrosion in the fuel tank area, or a malfunctioning engine control module (ECM).
Can a dirty fuel tank trigger the P143E code?
Yes, debris or contamination in the fuel tank can interfere with the fuel level sensor's operation and potentially cause this code to appear.
Is the P143E code serious?
While it may not affect drivability immediately, it can lead to inaccurate fuel level readings, which could result in running out of fuel unexpectedly.
How do you diagnose the P143E code?
Diagnosis typically involves scanning the vehicle for codes, inspecting the fuel level sensor and its wiring, testing the sensor's resistance, and checking for any corrosion or damage in the fuel system.
Can you fix the P143E code without replacing parts?
In some cases, cleaning the fuel level sensor or repairing damaged wiring can resolve the issue. However, if the sensor itself is faulty, it will need to be replaced.
How much does it cost to repair the P143E code on a 2015 GMC Sierra?
Repair costs can vary but typically range from $150 to $400, depending on whether the fuel level sensor or related components need replacement.
Can driving with the P143E code damage the vehicle?
Driving with this code is unlikely to cause direct damage, but it can lead to running out of fuel unexpectedly, which could leave you stranded or damage the fuel pump.
How can you prevent the P143E code from reoccurring?
Regularly maintaining the fuel system, using quality fuel, and addressing wiring or sensor issues promptly can help prevent the code from reappearing.
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