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P2067 2018 GMC Sierra Code - Fuel Level Sensor 2 Circuit Low Voltage

Quick Answer

The P2067 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the Fuel Level Sensor 2 Circuit, specifically reporting low voltage. Common causes include Malfunctioning fuel level sensor, Corroded or damaged wiring in the sensor circuit, Poor connection between the sensor and the ECM. 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
P2067 2018 GMC Sierra indicates Fuel Level Sensor 2 Circuit Low Voltage.
Common causes
Common causes include Malfunctioning fuel level sensor, Corroded or damaged wiring in the sensor circuit, Poor connection between the sensor and the ECM.
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 16, 2024
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Code P2067 2018 GMC Sierra Description

The P2067 diagnostic trouble code (DTC) for a 2018 GMC Sierra indicates a problem with the Fuel Level Sensor 2 Circuit, specifically reporting low voltage. The fuel level sensor is a crucial component of 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, optimize engine performance, and trigger warning indicators when the fuel level is low.

OBDII Code P2067 2018 GMC Sierra - Fuel Level Sensor 2 Circuit Low Voltage
P2067 2018 GMC Sierra Code - Fuel Level Sensor 2 Circuit Low Voltage

Common Causes of P2067 2018 GMC Sierra

  1. Malfunctioning fuel level sensor.
  2. Corroded or damaged wiring in the sensor circuit.
  3. Poor connection between the sensor and the ECM.
  4. ECM software issues.
  5. Fuel system contamination affecting sensor performance.

Symptoms of P2067 2018 GMC Sierra

  1. Inaccurate fuel level readings on the dashboard gauge.
  2. Decreased fuel efficiency.
  3. Rough idling or engine stalling.
  4. Check Engine Light illuminated.
  5. Difficulty starting the vehicle.

How to Fix P2067 2018 GMC Sierra

  1. Diagnose the issue by using a scan tool to read the DTC and inspect the fuel level sensor and its wiring.
  2. Replace the faulty fuel level sensor if it is determined to be the cause of the low voltage signal.
  3. Repair or replace any damaged wiring in the sensor circuit.
  4. Ensure a secure and proper connection between the sensor and the ECM.
  5. Clear the DTC and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P2067 2018 GMC Sierra

The typical repair costs for addressing a P2067 code on a 2018 GMC Sierra can vary depending on the specific cause of the issue. Replacement fuel level sensors can range from $50 to $150, while labor costs can add another $100 to $200. Overall, the total repair cost may fall between $150 and $350. However, it's important to note that diagnosis time and labor rates at auto repair shops can fluctuate based on various factors, so it's advisable to check with local service providers for a more accurate estimate.

What does this mean?

Tech Notes for P2067 2018 GMC Sierra

A low fuel level can trigger this code. Before replacing any parts, try filling up the fuel tank and erasing the engine code. If the problem persists, it may be necessary to replace the fuel level sensor.

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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 P2067 2018 GMC Sierra Code

1. What does the OBDII code P2067 indicate on a 2018 GMC Sierra?

The P2067 code indicates that the Engine Control Module (ECM) has detected a low voltage signal from the Fuel Level Sensor 2 circuit.

2. What symptoms might I notice if my 2018 GMC Sierra has the P2067 code?

Symptoms can include inaccurate fuel gauge readings, the fuel gauge fluctuating erratically, or the fuel gauge showing empty despite having fuel in the tank.

3. What are common causes of the P2067 code in a 2018 GMC Sierra?

Common causes include a faulty fuel level sensor, damaged wiring or connectors in the fuel level sensor circuit, or a problem with the ECM itself.

4. How can I fix the P2067 code on my 2018 GMC Sierra?

To fix the P2067 code, you should inspect and, if necessary, replace the fuel level sensor. Also, check for and repair any damaged wiring or connectors in the sensor circuit.

5. Is it safe to drive my 2018 GMC Sierra with the P2067 code?

While you can still drive your vehicle, you may encounter issues with fuel management due to inaccurate fuel level readings, which could potentially cause the vehicle to run out of fuel unexpectedly.

6. How do I confirm that the fuel level sensor is the issue when diagnosing the P2067 code?

A professional mechanic can perform a diagnostic test using a multimeter to check the voltage output of the fuel level sensor. If the readings are outside the manufacturer's specifications, the sensor needs to be replaced.

7. Can the P2067 code affect the fuel efficiency of my 2018 GMC Sierra?

Indirectly, yes. If the fuel gauge is inaccurate, it could lead you to either overfill or run out of fuel unexpectedly, which in turn can affect driving habits and fuel management.

8. What tools are needed to diagnose the P2067 code on a 2018 GMC Sierra?

Diagnosing the P2067 code typically requires a digital multimeter to measure voltages in the fuel level sensor circuit and an OBDII scanner to read the code and clear it after repairs.

9. How much does it typically cost to repair a P2067 code in a 2018 GMC Sierra?

The cost can vary widely depending on whether the issue is with the sensor itself or the wiring. Replacing a fuel level sensor can cost anywhere from $200 to $400 including parts and labor, while fixing wiring issues might be cheaper unless extensive repairs are needed.

10. After repairing a P2067 code, is there anything specific that should be checked or adjusted on a 2018 GMC Sierra?

After repairs, ensure that the fuel gauge reads accurately by comparing the gauge reading with the actual fuel level after filling the tank. It's also wise to clear the code with an OBDII scanner and check if the code returns upon driving.

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