P0464 2014 Chevrolet Silverado Code - Fuel Level Sensor Circuit Intermittent
Quick Answer
Diesel Engine The primary fuel level sensor and the secondary fuel level sensor change resistance based on fuel level. Common causes include Faulty Fuel Level Sensor, Fuel Level Sensor harness is open or shorted, Fuel Level Sensor circuit poor electrical connection. 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
- P0464 2014 Chevrolet Silverado indicates Fuel Level Sensor Circuit Intermittent.
- Common causes
- Common causes include Faulty Fuel Level Sensor, Fuel Level Sensor harness is open or shorted, Fuel Level Sensor circuit poor electrical connection.
- 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.
Code P0464 2014 Chevrolet Silverado Description
The primary fuel level sensor and the secondary fuel level sensor change resistance based on fuel level. The Fuel Pump Driver Control Module monitors the signal circuits of the primary fuel level sensor and the secondary fuel level sensor and sends the signal information to the Engine Control Module (ECM) for all further handling. The ECM uses this value in order to determine the fuel level. When the fuel tank is full, the resistances of both fuel level sensors are low, and the ECM senses a low signal voltage on both the signal circuits of the primary fuel level sensor and the secondary fuel level sensor. When the fuel tank is empty, the resistances of the fuel level sensors are high, and the ECM senses a high signal voltage. The ECM uses the signal circuits of the primary fuel level sensor and the secondary fuel level sensor in order to calculate the percentage of remaining fuel in the tank. The ECM sends the fuel level percentage via the serial data circuit to the instrument cluster in order to control the fuel gauge.
Gasoline Engine
The primary fuel level sensor and the secondary fuel level sensor change resistance based on fuel level. The Engine Control Module (ECM) monitors the signal circuits of the primary fuel level sensor and the secondary fuel level sensor in order to determine the fuel level. When the fuel tank is full, the resistances of both fuel level sensors are low, and the ECM senses a low signal voltage on both the signal circuits of the primary fuel level sensor and the secondary fuel level sensor. When the fuel tank is empty, the resistances of the fuel level sensors are high, and the ECM senses a high signal voltage. The ECM uses the signal circuits of the primary fuel level sensor and the secondary fuel level sensor in order to calculate the percentage of remaining fuel in the tank. The ECM sends the fuel level percentage via the serial data circuit to the instrument cluster in order to control the fuel gauge.
The Diagnostic Trouble Code (DTC) will be set if the ECM detects the fuel level change is greater than 10% for a duration lasting less than 30 seconds.
What are the Possible Causes of the DTC P0464 2014 Chevrolet Silverado?
- Faulty Fuel Level Sensor
- Fuel Level Sensor harness is open or shorted
- Fuel Level Sensor circuit poor electrical connection
- Faulty Instrument Cluster
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0464 2014 Chevrolet Silverado?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0464 2014 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0464 2014 Chevrolet Silverado Code
1. What does the OBDII code P0464 mean on a 2014 Chevrolet Silverado?
P0464 indicates an intermittent issue in the fuel level sensor circuit, meaning the sensor is sending erratic or inconsistent signals to the vehicle's computer.
2. What are the common symptoms of code P0464 in a 2014 Chevrolet Silverado?
Symptoms may include a fluctuating or inaccurate fuel gauge, an illuminated check engine light, or difficulty determining how much fuel is in the tank.
3. What causes the P0464 code to appear on a 2014 Chevrolet Silverado?
Common causes include a faulty fuel level sensor, damaged or corroded wiring, a malfunctioning fuel pump assembly, or issues with the vehicle's powertrain control module (PCM).
4. Can a P0464 code affect the drivability of my 2014 Chevrolet Silverado?
While P0464 typically does not affect drivability, it can lead to inaccurate fuel level readings and increase the risk of running out of fuel unexpectedly.
5. How do I diagnose a P0464 code on my 2014 Chevrolet Silverado?
Diagnosis typically involves scanning for codes, inspecting the fuel level sensor and its wiring for damage or corrosion, and testing the sensor's signal output with a multimeter.
6. How do I fix the P0464 code on a 2014 Chevrolet Silverado?
Repairs may 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. Can driving with a P0464 code harm my 2014 Chevrolet Silverado?
Driving with a P0464 code is generally safe, but it can lead to inconvenience or running out of fuel due to inaccurate fuel gauge readings.
8. How much does it cost to fix a P0464 code on a 2014 Chevrolet Silverado?
Repair costs can vary, but replacing the fuel level sensor or fuel pump assembly may range from $200 to $600, including parts and labor.
9. Can I repair the P0464 code on my 2014 Chevrolet Silverado myself?
If you have mechanical knowledge, you can inspect and replace the fuel level sensor or repair wiring. However, diagnosing and fixing the issue may require specialized tools.
10. Will clearing the P0464 code fix the issue on my 2014 Chevrolet Silverado?
Clearing the code will turn off the check engine light temporarily, but the code will return if the underlying issue is not resolved.
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