Engine-CodesChevrolet – P143E 2017 Chevrolet Silverado

P143E 2017 Chevrolet Silverado Code - Fuel Level Sensor 2 Reference Feedback Performance

Quick Answer

The P143E diagnostic trouble code for the 2017 Chevrolet Silverado indicates an issue with the Fuel Level Sensor 2 Reference Feedback Performance. Common causes include Faulty fuel level sensor, Damaged wiring or connectors, Corrosion or debris in the fuel tank affecting sensor performance. 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 2017 Chevrolet Silverado indicates Fuel Level Sensor 2 Reference Feedback Performance.
Common causes
Common causes include Faulty fuel level sensor, Damaged wiring or connectors, Corrosion or debris in the fuel tank affecting sensor performance.
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.
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P143E 2017 Chevrolet Silverado Description

The P143E diagnostic trouble code for the 2017 Chevrolet Silverado indicates an issue with the Fuel Level Sensor 2 Reference Feedback Performance. The fuel level sensor is a crucial component in the vehicle's fuel system, responsible for measuring the amount of fuel in the tank and sending this information to the engine control module (ECM). This data is essential for the ECM to accurately calculate fuel consumption and adjust fuel delivery accordingly.

OBDII Code P143E 2017 Chevrolet Silverado - Fuel Level Sensor 2 Reference Feedback Performance
P143E 2017 Chevrolet Silverado Code - Fuel Level Sensor 2 Reference Feedback Performance

Common Causes of P143E 2017 Chevrolet Silverado

  1. Faulty fuel level sensor
  2. Damaged wiring or connectors
  3. Corrosion or debris in the fuel tank affecting sensor performance
  4. ECM software or hardware issues
  5. Electrical system problems

Symptoms of P143E 2017 Chevrolet Silverado

  1. Inaccurate fuel level readings on the dashboard
  2. Poor fuel efficiency
  3. Engine stalling or hesitation
  4. Check Engine Light illuminated
  5. Difficulty starting the vehicle

How to Fix P143E 2017 Chevrolet Silverado

  1. Diagnose the issue by using a scan tool to retrieve the trouble codes and inspect the fuel level sensor 2 and related components.
  2. Test the fuel level sensor 2 using a multimeter to check for proper resistance values.
  3. Inspect the wiring and connectors for any damage, corrosion, or loose connections and repair or replace as necessary.
  4. Clean the fuel tank to remove any debris or contaminants affecting sensor performance.
  5. Clear the trouble codes, reset the ECM, and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P143E 2017 Chevrolet Silverado

The typical repair costs for addressing the P143E code on a 2017 Chevrolet Silverado can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. It's advisable to obtain quotes from local shops for a more accurate estimate.

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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 2017 Chevrolet Silverado Code

1. What does the OBDII code P143E mean for a 2017 Chevrolet Silverado?

P143E indicates a performance issue with the Fuel Level Sensor 2 Reference Feedback, which monitors fuel tank levels to ensure accurate readings and proper system operation.

2. What are the common symptoms of code P143E in a 2017 Chevrolet Silverado?

Symptoms may include inaccurate fuel gauge readings, a check engine light, and possible difficulty in monitoring fuel levels during operation.

3. What causes the P143E code in a Chevrolet Silverado?

Common causes include a faulty fuel level sensor, wiring issues, poor electrical connections, or a damaged fuel tank module.

4. How can I diagnose the P143E code on my Silverado?

Start by scanning for codes with an OBDII tool, inspect the wiring and connectors near the fuel level sensor, and verify sensor operation using a multimeter or diagnostic software.

5. Can I drive my 2017 Silverado with the P143E code?

While the vehicle may remain drivable, inaccurate fuel level readings could lead to running out of fuel unexpectedly, so prompt repairs are recommended.

6. How do I fix the P143E code on a Chevrolet Silverado?

Repair options include replacing the fuel level sensor, repairing damaged wiring or connectors, or replacing the fuel pump assembly if the sensor is integrated into it.

7. How much does it cost to repair the P143E code?

Repair costs vary but typically range from $200 to $600 depending on whether the sensor or fuel pump assembly needs replacement.

8. Can a bad fuel level sensor cause other issues in my Silverado?

Yes, it can lead to fuel system inefficiencies or incorrect data transmission to the engine control module, potentially affecting performance.

9. Do I need special tools to fix a P143E code?

Basic tools like a multimeter, OBDII scanner, and automotive repair tools are typically sufficient for diagnosing and repairing this issue.

10. Could the P143E code be triggered by a software issue?

Although rare, a software glitch in the engine control module (ECM) could cause incorrect sensor feedback, but this is less common than physical sensor or wiring issues.

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