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Engine-Codes – GMC – P143E GMC

P143E GMC Code - Fuel Level Sensor 2 Reference Feedback Performance

Quick Answer

The P143E GMC code indicates an issue with the Fuel Level Sensor 2 Reference Feedback Performance in the vehicle. Common causes include Faulty fuel level sensor, Wiring or connector issues, Corrosion or damage to the sensor. 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 GMC indicates Fuel Level Sensor 2 Reference Feedback Performance.
Common causes
Common causes include Faulty fuel level sensor, Wiring or connector issues, Corrosion or damage to the sensor.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P143E GMC Description

The P143E GMC code indicates an issue with the Fuel Level Sensor 2 Reference Feedback Performance 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 computer system. This information is crucial for accurately displaying the fuel level on the dashboard and ensuring that the engine runs smoothly. When the sensor malfunctions or fails to provide accurate feedback, it can lead to various performance issues and potentially cause long-term damage if not addressed promptly.

OBDII Code P143E GMC - Fuel Level Sensor 2 Reference Feedback Performance
P143E GMC Code - Fuel Level Sensor 2 Reference Feedback Performance

Common Causes of P143E GMC

  1. Faulty fuel level sensor
  2. Wiring or connector issues
  3. Corrosion or damage to the sensor
  4. Issues with the vehicle's computer system
  5. Fuel contamination affecting sensor performance

Symptoms of P143E GMC

  1. Inaccurate fuel level readings on the dashboard
  2. Engine stalling or hesitation
  3. Check Engine light illuminated
  4. Reduced fuel efficiency
  5. Difficulty starting the engine

How to Fix P143E GMC

  1. Diagnose the issue by using a scan tool to read the trouble code and investigate the fuel level sensor's performance.
  2. Inspect the wiring and connectors for any damage or corrosion. Repair or replace as necessary.
  3. Test the fuel level sensor's operation and replace it if it is found to be faulty.
  4. Clear the trouble code from the vehicle's computer system and test drive the vehicle to ensure the issue has been resolved.
  5. If the problem persists, further diagnostics may be required to identify any underlying issues with the vehicle's systems.

Cost to Fix P143E GMC

The typical repair costs for addressing the P143E GMC code can range from $150 to $400, depending on the extent of the issue and the cost of parts and labor in your area. It is important to note that diagnostic time and labor rates at auto repair shops can vary significantly, so it is advisable to obtain quotes from multiple shops to ensure you are getting a fair price. Additionally, factors such as the vehicle make and model, as well as the engine type, can also impact the overall repair costs.

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Information for Specific GMC Models

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P143E GMC Code

1. What are the common symptoms of OBDII code P143E (GMC) related to the Fuel Level Sensor 2 Reference Feedback Performance?

- Common symptoms include inaccurate fuel gauge readings, fluctuating fuel levels while driving, and potential illumination of the check engine light.

2. What are the possible causes of OBDII code P143E (GMC) indicating an issue with Fuel Level Sensor 2 Reference Feedback Performance?

- Possible causes may include a faulty fuel level sensor, wiring or connector issues, a defective fuel pump module, or a problem with the fuel tank.

3. How can I diagnose the root cause of OBDII code P143E (GMC) regarding Fuel Level Sensor 2 Reference Feedback Performance?

- Diagnosis typically involves inspecting the fuel level sensor, checking for any damaged wiring or loose connections, testing the fuel pump module, and examining the fuel tank for any issues.

4. Can I continue driving my vehicle with OBDII code P143E (GMC) triggered by Fuel Level Sensor 2 Reference Feedback Performance?

- It is generally not recommended to drive with this code as it can lead to inaccurate fuel readings and potentially cause other fuel system issues. It's advisable to address the problem promptly.

5. What are some DIY repair tips for resolving OBDII code P143E (GMC) related to Fuel Level Sensor 2 Reference Feedback Performance?

- DIY repair tips may include checking and cleaning the sensor connectors, inspecting the wiring for any visible damage, and ensuring the fuel tank is securely in place.

6. Is it necessary to replace the fuel level sensor when dealing with OBDII code P143E (GMC) regarding Fuel Level Sensor 2 Reference Feedback Performance?

- In many cases, replacing the fuel level sensor is the most effective solution to resolve the issue and ensure accurate fuel level readings.

7. How much does it typically cost to repair OBDII code P143E (GMC) caused by Fuel Level Sensor 2 Reference Feedback Performance?

- The cost of repair can vary depending on the underlying cause, but it may involve expenses for parts such as the fuel level sensor, labor costs, and any additional components that need replacement.

8. Can a malfunctioning fuel level sensor trigger other related OBDII codes in addition to P143E (GMC)?

- Yes, a faulty fuel level sensor can potentially trigger other codes related to fuel system malfunctions or sensor performance issues.

9. Are there any preventive measures to avoid encountering OBDII code P143E (GMC) associated with Fuel Level Sensor 2 Reference Feedback Performance in the future?

- Regular maintenance checks, avoiding running the vehicle on low fuel levels frequently, and promptly addressing any fuel system issues can help prevent the recurrence of this code.

10. How long does it typically take to repair OBDII code P143E (GMC) linked to Fuel Level Sensor 2 Reference Feedback Performance?

- The repair duration can vary based on the specific cause of the issue, the availability of parts, and the expertise of the technician, but it may range from a few hours to a full day.

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