P143E 2016 GMC Sierra Code - Fuel Level Sensor 2 Reference Feedback Performance
Quick Answer
The diagnostic trouble code P143E for a 2016 GMC Sierra indicates a problem with the Fuel Level Sensor 2 Reference Feedback Performance. Common causes include Faulty fuel level sensor 2, Wiring or connection issues, Corrosion or damage to sensor components. 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 2016 GMC Sierra indicates Fuel Level Sensor 2 Reference Feedback Performance.
- Common causes
- Common causes include Faulty fuel level sensor 2, Wiring or connection issues, Corrosion or damage to sensor components.
- 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 2016 GMC Sierra Description
The diagnostic trouble code P143E for a 2016 GMC Sierra indicates a problem with the Fuel Level Sensor 2 Reference Feedback Performance. This code is specifically related to the fuel level sensor, which is responsible for sending information about the fuel level in the tank to the vehicle's engine control module (ECM). The ECM uses this information to calculate fuel consumption, optimize engine performance, and trigger the low fuel warning light when necessary.
Common Causes of P143E 2016 GMC Sierra
- Faulty fuel level sensor 2
- Wiring or connection issues
- Corrosion or damage to sensor components
- ECM software malfunction
- Fuel system contamination
Symptoms of P143E 2016 GMC Sierra
- Inaccurate fuel level readings on the dashboard
- Fluctuating fuel gauge
- Check Engine Light illuminated
- Engine running lean or rich
- Difficulty starting the vehicle
How to Fix P143E 2016 GMC Sierra
- Diagnose the issue by using a scan tool to read the trouble code and perform a visual inspection of the sensor and wiring.
- Test the fuel level sensor 2 using a multimeter to check for proper resistance values.
- Replace the faulty fuel level sensor 2 if necessary, ensuring proper installation and connection.
- Inspect and repair any damaged wiring or connections.
- Clear the trouble code from the ECM and perform a test drive to ensure the issue has been resolved.
Cost to Fix P143E 2016 GMC Sierra
The cost of repairing a Fuel Level Sensor 2 Reference Feedback Performance issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, the cost of replacing a fuel level sensor can range from $150 to $300, including parts and labor. Additional costs may apply if wiring repairs or ECM reprogramming are needed. It's recommended to consult with a qualified mechanic or auto repair shop for a more accurate cost estimate based on your vehicle's make and model. Keep in mind that labor rates can vary between different repair shops and locations.
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Frequently Asked Questions about P143E 2016 GMC Sierra Code
What does OBDII code P143E mean on a 2016 GMC Sierra?
P143E indicates an issue with the Fuel Level Sensor 2 Reference Feedback Performance. It means the fuel level sensor is not providing accurate data to the vehicle’s computer.
What are the symptoms of code P143E in a 2016 GMC Sierra?
Symptoms may include erratic or inaccurate fuel level readings, an illuminated check engine light, and potential difficulty in monitoring fuel consumption.
What causes the P143E code to appear?
Common causes include a faulty fuel level sensor, wiring issues, corroded connections, or a malfunction in the fuel pump module.
Can a bad fuel pump cause the P143E code?
Yes, if the fuel pump module, which houses the fuel level sensor, is malfunctioning, it can trigger the P143E code.
How can I diagnose the P143E code?
Start by checking the wiring and connectors for the fuel level sensor. Use a scan tool to monitor fuel level readings and inspect for any inconsistencies or voltage issues.
Is it safe to drive with a P143E code?
While the truck may still operate, driving with this code can lead to inaccurate fuel level readings, increasing the risk of running out of fuel unexpectedly.
How can I fix the P143E code on a 2016 GMC Sierra?
Repairs may include replacing the faulty fuel level sensor, repairing damaged wiring, or replacing the fuel pump module if necessary.
Does the P143E code require a fuel level sensor replacement?
Not always. The issue could be related to wiring, connectors, or the fuel pump module. Proper diagnosis is needed to determine the exact cause.
Can a software issue cause the P143E code?
Although rare, a malfunctioning PCM (Powertrain Control Module) or outdated software could potentially contribute to the issue.
How much does it cost to repair the P143E code?
Repair costs vary but typically range from $150 to $400, depending on whether the fuel level sensor or fuel pump module needs replacement.
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