AutoCodes – GMC – P00EA GMC

P00EA GMC Code - Intake Air Temperature Sensor 3 Circuit Low Voltage

Quick Answer

The Intake Air Temperature (IAT) Sensor 3 is a variable resistor that changes an Engine Control Module (ECM) supplied 5 V signal. Common causes include Faulty Intake Air Temperature (IAT) Sensor 3 (Integrated with the Intake Manifold Pressure and Air Temperature Sensor), Intake Air Temperature Sensor 3 harness is open or shorted, Intake Air Temperature Sensor 3 circuit poor electrical connection. 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: P00EA GMC indicates Intake Air Temperature Sensor 3 Circuit Low Voltage.
Common causes: Common causes include Faulty Intake Air Temperature (IAT) Sensor 3 (Integrated with the Intake Manifold Pressure and Air Temperature Sensor), Intake Air Temperature Sensor 3 harness is open or shorted, Intake Air Temperature Sensor 3 circuit poor electrical connection.
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.

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Code Popularity 3,202

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on May 17, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P00EA GMC Description

The Intake Air Temperature (IAT) Sensor 3 is a variable resistor that changes an Engine Control Module (ECM) supplied 5 V signal. The signal varies with intake manifold air temperature and is displayed by the scan tool as °C (°F). The IAT sensor 3 is integrated with the Manifold Absolute Pressure Sensor in the intake manifold. The ECM provides a ground for the IAT sensor 3 low reference circuit. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the IAT sensor 3 signal is warmer than 149°C (300°F) for at least 5 s.

OBDII Code P00EA GMC - Intake Air Temperature Sensor 3 Circuit Low Voltage - AutoCodes.com — P00EA GMC Code - Intake Air Temperature Sensor 3 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P00EA GMC?

Faulty Intake Air Temperature (IAT) Sensor 3 (Integrated with the Intake Manifold Pressure and Air Temperature Sensor)
Intake Air Temperature Sensor 3 harness is open or shorted
Intake Air Temperature Sensor 3 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P00EA GMC?

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 P00EA GMC 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.

Need more information about the P00EA GMC code?

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Need Help with the Code?

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Information for Specific GMC Models

P00EA 2014 GMC Sierra — Intake Air Temperature Sensor 3 Circuit Low Voltage
P00EA 2015 GMC Sierra — Intake Air Temperature Sensor 3 Circuit Low Voltage
P00EA 2016 GMC Sierra — Intake Air Temperature Sensor 3 Circuit Low Voltage
P00EA 2017 GMC Sierra — Intake Air Temperature Sensor 3 Circuit Low Voltage
P00EA 2018 GMC Sierra — Intake Air Temperature Sensor 3 Circuit Low Voltage

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 P00EA GMC Code

1. What are the common symptoms of OBDII code P00EA (GMC) related to the Intake Air Temperature Sensor 3 Circuit Low Voltage?

- Common symptoms include poor engine performance, decreased fuel efficiency, rough idling, and potentially stalling of the vehicle.

2. What are some possible causes of the Intake Air Temperature Sensor 3 Circuit Low Voltage code (P00EA) in a GMC vehicle?

- Possible causes include a faulty intake air temperature sensor, damaged wiring or connectors, issues with the sensor circuit, or a problem with the engine control module (ECM).

3. How can I diagnose the Intake Air Temperature Sensor 3 Circuit Low Voltage issue in my GMC vehicle?

- Diagnosing the problem involves using an OBDII scanner to retrieve the specific trouble code, inspecting the intake air temperature sensor and its wiring for any visible damage, and testing the sensor's voltage and resistance.

4. What steps can I take to repair OBDII code P00EA in my GMC vehicle?

- Repair steps may include replacing the faulty intake air temperature sensor, repairing or replacing damaged wiring or connectors, clearing the trouble code with an OBDII scanner, and conducting a test drive to ensure the issue is resolved.

5. Can a dirty air filter cause the Intake Air Temperature Sensor 3 Circuit Low Voltage code (P00EA) to trigger in a GMC vehicle?

- While a dirty air filter can affect engine performance, it is unlikely to directly cause the P00EA trouble code. The code is typically related to issues with the intake air temperature sensor itself or its circuit.

6. Is it safe to continue driving my GMC vehicle with the OBDII code P00EA (Intake Air Temperature Sensor 3 Circuit Low Voltage) present?

- It is generally not recommended to ignore the P00EA trouble code, as it can lead to further engine problems and decreased fuel efficiency. It is best to address the issue promptly to prevent any potential damage.

7. How much does it typically cost to repair the Intake Air Temperature Sensor 3 Circuit Low Voltage issue in a GMC vehicle?

- The cost of repairs can vary depending on the specific cause of the problem, but it may involve parts and labor expenses ranging from $100 to $300 or more, depending on the extent of the repair needed.

8. Can I reset the OBDII code P00EA (GMC) related to the Intake Air Temperature Sensor 3 Circuit Low Voltage without fixing the underlying issue?

- While you can clear the trouble code using an OBDII scanner, it is not recommended to reset the code without addressing the root cause. The issue may persist and trigger the code again if left unresolved.

9. Are there any DIY repair tips for fixing the Intake Air Temperature Sensor 3 Circuit Low Voltage code (P00EA) in a GMC vehicle?

- DIY enthusiasts with automotive experience may attempt to replace the intake air temperature sensor themselves, following manufacturer instructions and safety precautions. However, for complex wiring or ECM issues, professional help is recommended.

10. How can I prevent the recurrence of OBDII code P00EA (GMC) related to the Intake Air Temperature Sensor 3 Circuit Low Voltage in the future?

- To prevent the issue from reoccurring, regular maintenance checks, keeping the air filter clean, and ensuring proper wiring connections can help maintain the integrity of the intake air temperature sensor system in your GMC vehicle.