Engine-Codes.com
Engine-Codes – Chevrolet – P2033 2018 Chevrolet Silverado

P2033 2018 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 2 Circuit High Voltage

Quick Answer

The P2033 diagnostic trouble code (DTC) on a 2018 Chevrolet Silverado indicates a problem with the Exhaust Gas Temperature (EGT) Sensor 2 Circuit, specifically detecting high voltage. Common causes include Faulty EGT Sensor: The EGT sensor itself may be malfunctioning, providing incorrect temperature readings, Wiring or Connector Issues: Damaged wiring or connectors leading to the EGT sensor can cause high voltage readings, ECM Malfunction: A problem with the engine control module can also trigger this code. 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 2018 Chevrolet Silverado indicates Exhaust Gas Temperature Sensor 2 Circuit High Voltage.
Common causes
Common causes include Faulty EGT Sensor: The EGT sensor itself may be malfunctioning, providing incorrect temperature readings, Wiring or Connector Issues: Damaged wiring or connectors leading to the EGT sensor can cause high voltage readings, ECM Malfunction: A problem with the engine control module can also trigger this code.
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 14, 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 2018 Chevrolet Silverado Description

The P2033 diagnostic trouble code (DTC) on a 2018 Chevrolet Silverado indicates a problem with the Exhaust Gas Temperature (EGT) Sensor 2 Circuit, specifically detecting high voltage. The EGT 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 optimize performance.

OBDII Code P2033 2018 Chevrolet Silverado - Exhaust Gas Temperature Sensor 2 Circuit High Voltage
P2033 2018 Chevrolet Silverado Code - Exhaust Gas Temperature Sensor 2 Circuit High Voltage

Common Causes of P2033 2018 Chevrolet Silverado

  1. Faulty EGT Sensor: The EGT sensor itself may be malfunctioning, providing incorrect temperature readings.
  2. Wiring or Connector Issues: Damaged wiring or connectors leading to the EGT sensor can cause high voltage readings.
  3. ECM Malfunction: A problem with the engine control module can also trigger this code.
  4. Exhaust System Leak: A leak in the exhaust system can lead to higher exhaust gas temperatures, triggering the sensor.

Symptoms of P2033 2018 Chevrolet Silverado

  1. Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the dashboard.
  2. Reduced Fuel Efficiency: High exhaust gas temperatures can lead to inefficient fuel combustion, resulting in decreased fuel efficiency.
  3. Engine Misfires: The engine may experience misfires or rough idling due to incorrect fuel delivery.
  4. Loss of Power: The vehicle may exhibit a loss of power or acceleration due to the ECM adjusting performance based on faulty sensor readings.

How to Fix P2033 2018 Chevrolet Silverado

  1. Diagnostic Scan: Use a diagnostic scanner to retrieve the specific trouble code and confirm the issue with the EGT Sensor 2 Circuit.
  2. Inspect Wiring and Connectors: Check the wiring and connectors leading to the EGT sensor for any damage or corrosion. Repair or replace as necessary.
  3. Replace EGT Sensor: If the sensor is faulty, replace it with a new one following manufacturer's guidelines.
  4. Clear Codes: After completing the repair, clear the diagnostic trouble codes from the ECM memory to reset the system.
  5. Test Drive: Take the vehicle for a test drive to ensure that the issue has been resolved and that the check engine light does not reappear.

Cost to Fix P2033 2018 Chevrolet Silverado

The cost of repairing a P2033 code on a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue. Generally, the cost of a new EGT sensor can range from $50 to $150, while labor costs can range from $100 to $200. Overall, the total repair cost can be estimated to be between $150 and $350. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.

What does this mean?

Tech Notes for P2033 2018 Chevrolet Silverado

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 2018 Chevrolet Silverado code?

Need more information on how to fix the P2033 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2033 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado Code

No Frequently Asked Questions about P2033 2018 Chevrolet Silverado Code found.

Discuss the causes and fixes for P2033 2018 Chevrolet Silverado OBDII Code

Submit a New Comment

Code P2033 2018 Chevrolet Silverado comments

No comments found for this page.