Engine-Codes.com
Engine-Codes – GMC – P113D 2018 GMC Sierra

P113D 2018 GMC Sierra Code - Exhaust Gas Temperature Sensor 3 Not Plausible

Quick Answer

The P113D diagnostic trouble code (DTC) on a 2018 GMC Sierra refers to the Exhaust Gas Temperature Sensor 3 not being plausible. Common causes include Faulty Exhaust Gas Temperature Sensor: The most common cause of the P113D code is a malfunctioning exhaust gas temperature sensor, Wiring Issues: Problems with the wiring connected to the sensor can also trigger this code, ECM Malfunction: A problem with the engine control module (ECM) can prevent the sensor data from being interpreted correctly. 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
P113D 2018 GMC Sierra indicates Exhaust Gas Temperature Sensor 3 Not Plausible.
Common causes
Common causes include Faulty Exhaust Gas Temperature Sensor: The most common cause of the P113D code is a malfunctioning exhaust gas temperature sensor, Wiring Issues: Problems with the wiring connected to the sensor can also trigger this code, ECM Malfunction: A problem with the engine control module (ECM) can prevent the sensor data from being interpreted correctly.
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 12, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P113D 2018 GMC Sierra Description

The P113D diagnostic trouble code (DTC) on a 2018 GMC Sierra refers to the Exhaust Gas Temperature Sensor 3 not being plausible. This sensor is responsible for monitoring the temperature of the exhaust gases leaving the engine. When the sensor detects that the temperature is outside of the expected range, it triggers the P113D code. This can indicate a problem with the sensor itself or with the exhaust system.

OBDII Code P113D 2018 GMC Sierra - Exhaust Gas Temperature Sensor 3 Not Plausible
P113D 2018 GMC Sierra Code - Exhaust Gas Temperature Sensor 3 Not Plausible

Common Causes of P113D 2018 GMC Sierra

  1. Faulty Exhaust Gas Temperature Sensor: The most common cause of the P113D code is a malfunctioning exhaust gas temperature sensor.
  2. Wiring Issues: Problems with the wiring connected to the sensor can also trigger this code.
  3. ECM Malfunction: A problem with the engine control module (ECM) can prevent the sensor data from being interpreted correctly.
  4. Exhaust System Problems: Issues with the exhaust system, such as leaks or blockages, can also lead to the P113D code.

Symptoms of P113D 2018 GMC Sierra

  1. Check Engine Light: The most common symptom associated with the P113D code is the illumination of the check engine light on the vehicle's dashboard.
  2. Decreased Fuel Efficiency: A malfunctioning exhaust gas temperature sensor can cause the engine to run inefficiently, leading to decreased fuel efficiency.
  3. Reduced Engine Performance: The ECM relies on data from the exhaust gas temperature sensor to adjust fuel delivery and timing. If the sensor is not functioning properly, engine performance may be compromised.
  4. Rough Idle: A faulty exhaust gas temperature sensor can also cause the engine to idle roughly or inconsistently.
  5. Increased Emissions: When the sensor is not providing accurate data, it can result in increased emissions from the vehicle.

How to Fix P113D 2018 GMC Sierra

  1. Diagnose the Issue: The first step in resolving the P113D code is to perform a thorough diagnosis to determine the exact cause of the problem. This may involve using a scan tool to read the code and inspecting the exhaust gas temperature sensor and related components.
  2. Replace the Exhaust Gas Temperature Sensor: If the sensor is found to be faulty, it will need to be replaced with a new, OEM-quality sensor.
  3. Check Wiring: Inspect the wiring connected to the sensor to ensure there are no breaks, shorts, or other issues that could be causing a poor connection.
  4. Test the ECM: If the sensor and wiring are in good condition, the ECM should be tested to ensure it is functioning properly and able to interpret the sensor data accurately.
  5. Clear the Code: Once the issue has been resolved, the code can be cleared from the ECM using a scan tool to reset the check engine light.

Cost to Fix P113D 2018 GMC Sierra

The typical repair costs for addressing the P113D code on a 2018 GMC Sierra can vary depending on the exact cause of the issue and the labor rates at the auto repair shop. On average, replacing the exhaust gas temperature sensor can cost between $150 and $300, including parts and labor. However, additional costs may apply if there are wiring issues or problems with the ECM that need to be addressed.

Need more information about the P113D 2018 GMC Sierra code?

Need more information on how to fix the P113D 2018 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P113D 2018 GMC Sierra code diagnosed by a professional: Find a repair shop in your area

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 P113D 2018 GMC Sierra Code

1. What does OBDII code P113D mean for a 2018 GMC Sierra?

Code P113D indicates that the Exhaust Gas Temperature Sensor 3 is providing readings that are not plausible or inconsistent with expected values.

2. What are the common symptoms of code P113D in a 2018 GMC Sierra?

Symptoms include the check engine light turning on, reduced engine performance, decreased fuel efficiency, and possible issues with emissions.

3. What causes code P113D on a 2018 GMC Sierra?

Common causes include a faulty Exhaust Gas Temperature Sensor, wiring issues, connector problems, or soot buildup affecting sensor accuracy.

4. Can I drive my 2018 GMC Sierra with code P113D active?

While the vehicle may still be drivable, driving with this code can lead to increased emissions and potential damage to the exhaust system, so it’s best to address the issue promptly.

5. How do I diagnose code P113D on a 2018 GMC Sierra?

Use an OBDII scanner to confirm the code and inspect the Exhaust Gas Temperature Sensor 3, wiring, and connectors for damage or soot buildup.

6. How do I fix code P113D on a 2018 GMC Sierra?

Repairs may include cleaning or replacing the Exhaust Gas Temperature Sensor 3, repairing damaged wiring, or ensuring connectors are secure and free of corrosion.

7. How much does it cost to fix code P113D on a 2018 GMC Sierra?

The cost varies depending on the repair, but replacing the Exhaust Gas Temperature Sensor typically costs between $100 and $300, including parts and labor.

8. Can a dirty Exhaust Gas Temperature Sensor cause code P113D?

Yes, soot or debris buildup on the sensor can lead to inaccurate readings and trigger this code.

9. Does code P113D affect fuel efficiency in a 2018 GMC Sierra?

Yes, inaccurate exhaust gas temperature readings can cause suboptimal engine performance, leading to reduced fuel efficiency.

10. Is Exhaust Gas Temperature Sensor 3 critical for the operation of my 2018 GMC Sierra?

Yes, it helps monitor exhaust temperatures for optimal engine and emissions system performance, so addressing issues is important for maintaining the vehicle's efficiency and compliance.

Discuss the causes and fixes for P113D 2018 GMC Sierra OBDII Code

Submit a New Comment

Code P113D 2018 GMC Sierra comments

No comments found for this page.