Engine-Codes.com
Engine-Codes – GMC – P2033 2017 GMC Sierra

P2033 2017 GMC Sierra Code - Exhaust Gas Temperature Sensor 2 Circuit High Voltage

Quick Answer

The P2033 diagnostic trouble code (DTC) for a 2017 GMC Sierra refers to the Exhaust Gas Temperature Sensor 2 Circuit High Voltage. Common causes include Faulty Sensor: The exhaust gas temperature sensor itself may be faulty, leading to high voltage readings, Wiring Issues: Damaged or corroded wiring connected to the sensor can cause electrical issues and trigger the P2033 code, ECM Malfunction: A malfunctioning engine control module (ECM) can also cause the sensor to read high voltage incorrectly. 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
P2033 2017 GMC Sierra indicates Exhaust Gas Temperature Sensor 2 Circuit High Voltage.
Common causes
Common causes include Faulty Sensor: The exhaust gas temperature sensor itself may be faulty, leading to high voltage readings, Wiring Issues: Damaged or corroded wiring connected to the sensor can cause electrical issues and trigger the P2033 code, ECM Malfunction: A malfunctioning engine control module (ECM) can also cause the sensor to read high voltage incorrectly.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 13, 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 P2033 2017 GMC Sierra Description

The P2033 diagnostic trouble code (DTC) for a 2017 GMC Sierra refers to the Exhaust Gas Temperature Sensor 2 Circuit High Voltage. This code indicates that the exhaust gas temperature sensor 2 is detecting a higher than normal voltage, which can lead to various issues within the vehicle's emissions control system. The exhaust gas temperature sensor is responsible for monitoring the temperature of the exhaust gases leaving the engine. This information is crucial for the engine control module (ECM) to adjust fuel delivery and timing to optimize performance and reduce emissions.

OBDII Code P2033 2017 GMC Sierra - Exhaust Gas Temperature Sensor 2 Circuit High Voltage
P2033 2017 GMC Sierra Code - Exhaust Gas Temperature Sensor 2 Circuit High Voltage

Common Causes of P2033 2017 GMC Sierra

  1. Faulty Sensor: The exhaust gas temperature sensor itself may be faulty, leading to high voltage readings.
  2. Wiring Issues: Damaged or corroded wiring connected to the sensor can cause electrical issues and trigger the P2033 code.
  3. ECM Malfunction: A malfunctioning engine control module (ECM) can also cause the sensor to read high voltage incorrectly.
  4. Exhaust System Leaks: Leaks in the exhaust system can affect the sensor's readings, leading to erroneous high voltage signals.
  5. Sensor Placement: Improper placement or mounting of the exhaust gas temperature sensor can result in inaccurate readings and trigger the code.

Symptoms of P2033 2017 GMC Sierra

  1. Check Engine Light: The most common symptom associated with the P2033 code is the illumination of the check engine light on the vehicle's dashboard.
  2. Reduced Fuel Efficiency: A malfunctioning exhaust gas temperature sensor can lead to decreased fuel efficiency as the engine may not be operating optimally.
  3. Rough Idling: The engine may experience rough idling or hesitation when the exhaust gas temperature sensor is not functioning correctly.
  4. Emission Issues: High voltage readings from the exhaust gas temperature sensor can result in increased emissions, potentially causing the vehicle to fail emissions tests.
  5. Loss of Power: In severe cases, the vehicle may experience a loss of power or acceleration due to the incorrect readings from the sensor.

How to Fix P2033 2017 GMC Sierra

  1. Diagnostic Testing: Begin by conducting a thorough diagnostic test to confirm the P2033 code and pinpoint the exact cause of the high voltage readings.
  2. Sensor Replacement: If the exhaust gas temperature sensor is determined to be faulty, replace it with a new, OEM-quality sensor.
  3. Wiring Inspection: Check the wiring connected to the sensor for any damage or corrosion. Repair or replace any damaged wires as needed.
  4. ECM Check: Inspect the engine control module for any malfunctions or errors. Reset or reprogram the ECM if necessary to address the high voltage readings.
  5. Clearing Codes: After completing the repairs, clear the diagnostic trouble codes from the vehicle's ECM and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2033 2017 GMC Sierra

The typical repair costs for addressing the P2033 code on a 2017 GMC Sierra can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor in your area. This estimate includes the cost of a new exhaust gas temperature sensor, potential wiring repairs, and diagnostic testing. Keep in mind that labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. It is advisable to contact local auto repair shops for a more accurate estimate based on your location and vehicle specifics.

What does this mean?

Tech Notes for P2033 2017 GMC Sierra

After starting the engine, the exhaust gas temperature sensor temperature should rise steadily, then stabilize after the engine reaches operating temperature. Exhaust gas temperature sensors may fail intermittently while operating under extreme temperatures. Review the Freeze Frame/Failure Records to verify the failure criteria.

Need more information about the P2033 2017 GMC Sierra code?

Need more information on how to fix the P2033 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2033 2017 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 P2033 2017 GMC Sierra Code

1. What are the common symptoms of OBDII code P2033 in a 2017 GMC Sierra related to the Exhaust Gas Temperature Sensor 2 Circuit High Voltage?

The common symptoms include the illumination of the Check Engine Light on the dashboard, decreased fuel efficiency, and potential issues with the vehicle's emissions system.

2. What are the possible causes of OBDII code P2033 in a 2017 GMC Sierra?

Possible causes of this code include a faulty exhaust gas temperature sensor, issues with the sensor's wiring or connectors, a damaged sensor housing, or problems with the vehicle's engine control module.

3. How can I diagnose the OBDII code P2033 in my 2017 GMC Sierra?

Diagnosing this code typically involves using an OBDII scanner to retrieve the specific fault code, inspecting the exhaust gas temperature sensor and its connections for any visible damage, and testing the sensor's functionality using a multimeter.

4. Can I continue driving my 2017 GMC Sierra with OBDII code P2033 present?

It is generally not recommended to continue driving the vehicle with this code active, as it can lead to further damage to the emissions system and potentially affect the engine performance. It's best to address the issue promptly.

5. What are the repair options for fixing OBDII code P2033 in a 2017 GMC Sierra?

Repair options may include replacing the faulty exhaust gas temperature sensor, repairing any damaged wiring or connectors, cleaning or replacing the sensor housing, or reprogramming the engine control module as necessary.

6. Are there any DIY tips for addressing OBDII code P2033 in a 2017 GMC Sierra?

While some basic troubleshooting steps can be performed by DIY enthusiasts, it is recommended to consult a qualified mechanic for proper diagnosis and repair of this code to ensure it is resolved correctly.

7. How much can I expect to pay to fix OBDII code P2033 in my 2017 GMC Sierra?

The cost of fixing this code can vary depending on the specific cause of the issue, the labor rates in your area, and whether you choose to address the problem yourself or take it to a professional mechanic. Costs may range from a few hundred to over a thousand dollars.

8. Can OBDII code P2033 in a 2017 GMC Sierra cause any long-term damage if left unresolved?

Leaving this code unresolved can potentially lead to increased emissions, reduced fuel efficiency, and further damage to the vehicle's emissions system over time. It's best to address the issue promptly to prevent any long-term damage.

9. Will resetting the Check Engine Light resolve OBDII code P2033 in my 2017 GMC Sierra?

Simply resetting the Check Engine Light will not fix the underlying issue causing this code. It may temporarily turn off the light, but the problem will persist until properly diagnosed and repaired.

10. Is OBDII code P2033 a common issue in 2017 GMC Sierra vehicles?

While not extremely common, OBDII code P2033 related to the Exhaust Gas Temperature Sensor 2 Circuit High Voltage can occur in 2017 GMC Sierra vehicles, especially as they age and components wear out. Proper maintenance can help prevent such issues.

Discuss the causes and fixes for P2033 2017 GMC Sierra OBDII Code

Submit a New Comment

Code P2033 2017 GMC Sierra comments

No comments found for this page.