AutoCodes – Buick – P2472 Buick

P2472 Buick Code - Exhaust Gas Temperature Sensor 4 Circuit Intermittent

Quick Answer

The Exhaust Gas Temperature Sensors (EGTS) are variable resistors that measure the temperature of the exhaust gas. Common causes include Exhaust leaks, Faulty Exhaust Gas Temperature Sensor (EGTS) 4, Exhaust Gas Temperature Sensor 4 harness is open or shorted. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P2472 Buick indicates Exhaust Gas Temperature Sensor 4 Circuit Intermittent.
Common causes: Common causes include Exhaust leaks, Faulty Exhaust Gas Temperature Sensor (EGTS) 4, Exhaust Gas Temperature Sensor 4 harness is open or shorted.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 306

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 26, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2472 Buick Description

The Exhaust Gas Temperature Sensors (EGTS) are variable resistors that measure the temperature of the exhaust gas. The exhaust temperature sensor 1 is the first exhaust temperature sensor on the exhaust system, the following exhaust temperature sensors are counted upward from the engine outlet to the exhaust system end. The Engine Control Module (ECM) supplies 5 V to the exhaust gas temperature signal circuit and supplies a ground to the low reference circuit. The Exhaust Gas Temperature Sensor temperature information is used by the ECM during the exhaust gas particulate filter cleaning process. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the Exhaust Gas Temperature Sensor resistance has changed greater than a calibrated amount in less than 1 s.

OBDII Code P2472 Buick - Exhaust Gas Temperature Sensor 4 Circuit Intermittent - AutoCodes.com — P2472 Buick Code - Exhaust Gas Temperature Sensor 4 Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P2472 Buick?

Exhaust leaks
Faulty Exhaust Gas Temperature Sensor (EGTS) 4
Exhaust Gas Temperature Sensor 4 harness is open or shorted
Exhaust Gas Temperature Sensor 4 circuit poor electrical connection
Excessive particulate matter buildup on sensor
Faulty Engine Control Module (ECM)

How to Fix the DTC P2472 Buick?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2472 Buick code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Need Help with the Code?

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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 P2472 Buick Code

1. What are the common symptoms of OBDII code P2472 in a Buick related to the Exhaust Gas Temperature Sensor 4 Circuit Intermittent?

The common symptoms include poor engine performance, decreased fuel efficiency, and potential exhaust system issues.

2. What are some possible causes of the OBDII code P2472 in a Buick with regard to the Exhaust Gas Temperature Sensor 4 Circuit Intermittent?

Possible causes may include a faulty exhaust gas temperature sensor, wiring issues, sensor circuit problems, or a malfunctioning engine control module.

3. How can I diagnose the OBDII code P2472 in a Buick related to the Exhaust Gas Temperature Sensor 4 Circuit Intermittent?

Diagnosis typically involves using an OBDII scanner to retrieve the specific fault code, inspecting the sensor and its wiring for damage, and testing the sensor's functionality.

4. Are there any repair tips for addressing the OBDII code P2472 in a Buick due to the Exhaust Gas Temperature Sensor 4 Circuit Intermittent?

Repair tips may include replacing the faulty exhaust gas temperature sensor, repairing damaged wiring, ensuring proper sensor connections, and clearing the fault code with an OBDII scanner.

5. Can driving with the OBDII code P2472 in a Buick related to the Exhaust Gas Temperature Sensor 4 Circuit Intermittent cause further damage?

Continued driving with this code may lead to worsened engine performance, increased fuel consumption, and potential damage to the catalytic converter or other components in the exhaust system.

6. Is it safe to ignore the OBDII code P2472 in a Buick associated with the Exhaust Gas Temperature Sensor 4 Circuit Intermittent?

Ignoring this code can lead to long-term engine issues and potential emissions problems, so it is recommended to address the underlying problem promptly.

7. How much does it typically cost to repair the OBDII code P2472 in a Buick due to the Exhaust Gas Temperature Sensor 4 Circuit Intermittent?

Repair costs can vary depending on the exact cause of the issue, but they may range from approximately $100 to $300 for parts and labor.

8. Can a DIY enthusiast fix the OBDII code P2472 in a Buick related to the Exhaust Gas Temperature Sensor 4 Circuit Intermittent?

Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and replace the exhaust gas temperature sensor themselves.

9. How long does it take to repair the OBDII code P2472 in a Buick caused by the Exhaust Gas Temperature Sensor 4 Circuit Intermittent?

The repair time can vary based on the extent of the issue and the repairer's experience, but it typically takes around 1-2 hours to diagnose and replace the sensor.

10. Are there any recalls or technical service bulletins related to the OBDII code P2472 in Buick vehicles with the Exhaust Gas Temperature Sensor 4 Circuit Intermittent issue?

It's recommended to check with Buick dealerships or online resources for any recalls or technical service bulletins specific to this problem to see if there are any related updates or remedies available.