Engine-CodesGMC – P0454 2016 GMC Sierra

P0454 2016 GMC Sierra Code - Fuel Tank Pressure Sensor Circuit Intermittent

Quick Answer

The P0454 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Fuel Tank Pressure Sensor Circuit Intermittent. Common causes include Faulty fuel tank pressure sensor, Damaged or corroded wiring in the sensor circuit, Loose or disconnected electrical connectors. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0454 2016 GMC Sierra indicates Fuel Tank Pressure Sensor Circuit Intermittent.
Common causes
Common causes include Faulty fuel tank pressure sensor, Damaged or corroded wiring in the sensor circuit, Loose or disconnected electrical connectors.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P0454 2016 GMC Sierra Description

The P0454 diagnostic trouble code (DTC) for a 2016 GMC Sierra relates to the Fuel Tank Pressure Sensor Circuit Intermittent. This code indicates that there is an intermittent issue with the fuel tank pressure sensor circuit, which is responsible for monitoring the pressure inside the fuel tank. The fuel tank pressure sensor plays a crucial role in the vehicle's evaporative emissions control system, which helps reduce harmful emissions released into the atmosphere.

OBDII Code P0454 2016 GMC Sierra - Fuel Tank Pressure Sensor Circuit Intermittent
P0454 2016 GMC Sierra Code - Fuel Tank Pressure Sensor Circuit Intermittent

Common Causes of P0454 2016 GMC Sierra

  1. Faulty fuel tank pressure sensor
  2. Damaged or corroded wiring in the sensor circuit
  3. Loose or disconnected electrical connectors
  4. Issues with the ECM or other related components
  5. Fuel cap not properly sealed or damaged

Symptoms of P0454 2016 GMC Sierra

  1. Check engine light illuminated on the dashboard
  2. Decreased fuel efficiency
  3. Rough idling or stalling
  4. Difficulty starting the engine
  5. Increased emissions

How to Fix P0454 2016 GMC Sierra

  1. Diagnose the issue by using a scan tool to retrieve the DTC and inspecting the fuel tank pressure sensor and circuit for any visible damage.
  2. Replace the faulty fuel tank pressure sensor if it is determined to be the cause of the issue.
  3. Check and repair any damaged or corroded wiring in the sensor circuit.
  4. Ensure all electrical connectors are securely connected and free of corrosion.
  5. Clear the DTC and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P0454 2016 GMC Sierra

The typical repair costs for addressing a P0454 code on a 2016 GMC Sierra can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more competitive pricing.

Tech Notes for P0454 2016 GMC Sierra









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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.

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