AutoCodesBuick – P00EA Buick

P00EA Buick 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 Buick 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,194
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 17, 2022
💬 Need more help? Ask Coddy for instant answers — it's free!

Code P00EA Buick 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 Buick - Intake Air Temperature Sensor 3 Circuit Low Voltage - AutoCodes.com
P00EA Buick Code - Intake Air Temperature Sensor 3 Circuit Low Voltage

What are the Possible Causes of the DTC P00EA Buick?

  • 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 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 P00EA 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.

Need more information about the P00EA Buick code?

Need more information on how to fix the P00EA Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P00EA Buick 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 P00EA Buick Code

What does the OBDII code P00EA mean on a Buick?

P00EA indicates a problem with the Intake Air Temperature Sensor 3 Circuit, specifically that the sensor is detecting a voltage level lower than expected by the powertrain control module (PCM).

What are the common symptoms of code P00EA in a Buick?

Symptoms may include an illuminated check engine light, reduced engine performance, poor fuel efficiency, and possible difficulty starting the engine.

What causes the P00EA code to appear on a Buick?

Common causes include a faulty intake air temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the PCM.

Can I drive my Buick with the P00EA code active?

Driving with the P00EA code may be possible, but it is not recommended as it can lead to poor performance, reduced fuel efficiency, and potential engine damage over time.

How do I diagnose the P00EA code on a Buick?

Diagnosis typically involves using an OBDII scanner to confirm the code, inspecting the intake air temperature sensor and its wiring for damage, and testing the sensor's voltage readings with a multimeter.

How do I fix the P00EA code on my Buick?

Common fixes include replacing the faulty intake air temperature sensor, repairing or replacing damaged wiring or connectors, and, in rare cases, reprogramming or replacing the PCM.

What tools do I need to repair the P00EA code on a Buick?

You will typically need an OBDII scanner, a multimeter to test electrical circuits, and basic hand tools for sensor removal and installation.

How much does it cost to fix code P00EA on a Buick?

The cost can vary, but replacing an intake air temperature sensor typically ranges from $50 to $150 for parts, with additional labor costs if a mechanic is involved.

Can a dirty air filter cause code P00EA in a Buick?

While a dirty air filter is not a direct cause of P00EA, it can affect airflow and indirectly contribute to sensor performance issues. Ensure the air filter is clean as part of the troubleshooting process.

Does clearing the P00EA code fix the issue on a Buick?

Clearing the code with an OBDII scanner may turn off the check engine light temporarily, but it will not fix the underlying issue. Proper diagnosis and repair are necessary to resolve the problem permanently.

Discuss the causes and fixes for P00EA Buick OBDII Code

Code P00EA Buick comments

No comments found for this page.

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