Engine-CodesChevrolet – P118F 2016 Chevrolet Silverado

P118F 2016 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 2 Performance Engine Running

Quick Answer

The P118F diagnostic trouble code (DTC) specifically relates to the Exhaust Gas Temperature (EGT) Sensor 2 on a 2016 Chevrolet Silverado. Common causes include Faulty EGT sensor, Wiring or electrical issues, Contamination of the sensor with exhaust residue. 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
P118F 2016 Chevrolet Silverado indicates Exhaust Gas Temperature Sensor 2 Performance Engine Running.
Common causes
Common causes include Faulty EGT sensor, Wiring or electrical issues, Contamination of the sensor with exhaust residue.
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 11, 2024
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Code P118F 2016 Chevrolet Silverado Description

The P118F diagnostic trouble code (DTC) specifically relates to the Exhaust Gas Temperature (EGT) Sensor 2 on a 2016 Chevrolet Silverado. This code indicates that there is a performance issue with the EGT sensor while the engine is running. The EGT sensor is responsible for monitoring the exhaust gas temperature after it passes through the diesel particulate filter (DPF). This sensor plays a crucial role in ensuring that the emissions system is functioning properly and that the engine is operating efficiently.

OBDII Code P118F 2016 Chevrolet Silverado - Exhaust Gas Temperature Sensor 2 Performance Engine Running
P118F 2016 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 2 Performance Engine Running

Common Causes of P118F 2016 Chevrolet Silverado

  1. Faulty EGT sensor
  2. Wiring or electrical issues
  3. Contamination of the sensor with exhaust residue
  4. Exhaust system leaks
  5. Software or calibration issues

Symptoms of P118F 2016 Chevrolet Silverado

  1. Decreased engine performance or power
  2. Poor fuel efficiency
  3. Illumination of the check engine light
  4. Increased emissions output
  5. Rough idling or engine vibrations

How to Fix P118F 2016 Chevrolet Silverado

  1. Begin by diagnosing the issue using a diagnostic scanner to confirm the P118F code and identify the specific cause of the problem.
  2. Inspect the EGT sensor and its wiring for any visible damage or contamination. Replace the sensor if necessary.
  3. Check for any exhaust system leaks that may be affecting the sensor's performance and repair as needed.
  4. Clear the DTC and reset the check engine light after completing the repairs.
  5. Test drive the vehicle to ensure that the issue has been resolved and that the engine is operating correctly.

Cost to Fix P118F 2016 Chevrolet Silverado

The typical repair costs for addressing a P118F code on a 2016 Chevrolet Silverado can range from $200 to $500. This estimate includes the cost of a new EGT sensor, potential wiring repairs, and labor charges. It is important to note that actual repair costs can vary depending on the specific diagnosis time and labor rates at auto repair shops. Rates can also be influenced by factors such as location, vehicle make and model, and engine type. To obtain a more accurate estimate, it is recommended to consult with local auto repair shops.

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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 P118F 2016 Chevrolet Silverado Code

What does OBDII code P118F mean on a 2016 Chevrolet Silverado?

P118F indicates an issue with Exhaust Gas Temperature Sensor 2, specifically its performance while the engine is running.

What are the symptoms of code P118F in a 2016 Chevrolet Silverado?

Common symptoms include an illuminated check engine light, reduced engine performance, and potential issues with emissions control or fuel efficiency.

What causes the P118F code to appear?

The code can be triggered by a faulty exhaust gas temperature sensor, damaged wiring or connectors, soot buildup on the sensor, or issues with the vehicle's exhaust or emissions system.

Can I drive my 2016 Chevrolet Silverado with the P118F code?

While it may be possible to drive the vehicle, it is not recommended, as ignoring the issue could lead to increased emissions, reduced fuel efficiency, and potential damage to the exhaust system.

How do I diagnose the P118F code?

Start by inspecting the wiring and connectors for the Exhaust Gas Temperature Sensor 2, checking for corrosion, damage, or loose connections. Use a scan tool to monitor sensor readings and compare them to expected values.

How do I fix the P118F code on a 2016 Chevrolet Silverado?

Repairs may include replacing the faulty exhaust gas temperature sensor, cleaning soot buildup, repairing damaged wiring, or updating the vehicle's engine control module (ECM software) if needed.

How much does it cost to fix the P118F code?

The repair cost varies, but replacing the exhaust gas temperature sensor typically costs $100 to $300, including parts and labor. Additional repairs could increase the total cost.

Can a dirty or clogged exhaust cause the P118F code?

Yes, excessive soot or blockages in the exhaust system can affect sensor readings and trigger the P118F code.

What tools are needed to troubleshoot the P118F code?

Common tools include an OBDII scan tool, a multimeter for testing electrical connections, and basic hand tools for sensor removal and inspection.

Does the P118F code affect emissions testing?

Yes, the P118F code can cause your vehicle to fail an emissions test due to improper exhaust gas temperature readings and potential increased emissions.

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