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P007E 2018 GMC Sierra Code - Charge Air Cooler Temperature Sensor 1 Circuit Erratic

Quick Answer

The P007E diagnostic trouble code (DTC) for a 2018 GMC Sierra specifically refers to an issue with the Charge Air Cooler Temperature Sensor 1 Circuit being erratic. Common causes include Faulty Charge Air Cooler Temperature Sensor: The sensor itself may be malfunctioning, providing inconsistent or incorrect temperature readings, Wiring Issues: Damaged or corroded wiring connections to the sensor can cause erratic signals to the ECM, ECM Malfunction: A problem with the engine control module can also lead to erratic sensor readings. 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
P007E 2018 GMC Sierra indicates Charge Air Cooler Temperature Sensor 1 Circuit Erratic.
Common causes
Common causes include Faulty Charge Air Cooler Temperature Sensor: The sensor itself may be malfunctioning, providing inconsistent or incorrect temperature readings, Wiring Issues: Damaged or corroded wiring connections to the sensor can cause erratic signals to the ECM, ECM Malfunction: A problem with the engine control module can also lead to erratic sensor readings.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code P007E 2018 GMC Sierra Description

The P007E diagnostic trouble code (DTC) for a 2018 GMC Sierra specifically refers to an issue with the Charge Air Cooler Temperature Sensor 1 Circuit being erratic. The Charge Air Cooler (CAC) is an essential component in a turbocharged or supercharged engine system. It cools the compressed air coming from the turbocharger or supercharger before it enters the engine, improving performance and efficiency. The temperature sensor in the CAC monitors the temperature of the air passing through it, providing crucial data to the engine control module (ECM) for optimal fuel delivery and ignition timing.

OBDII Code P007E 2018 GMC Sierra - Charge Air Cooler Temperature Sensor 1 Circuit Erratic
P007E 2018 GMC Sierra Code - Charge Air Cooler Temperature Sensor 1 Circuit Erratic

Common Causes of P007E 2018 GMC Sierra

  1. Faulty Charge Air Cooler Temperature Sensor: The sensor itself may be malfunctioning, providing inconsistent or incorrect temperature readings.
  2. Wiring Issues: Damaged or corroded wiring connections to the sensor can cause erratic signals to the ECM.
  3. ECM Malfunction: A problem with the engine control module can also lead to erratic sensor readings.
  4. Sensor Placement: Improper installation or placement of the sensor within the Charge Air Cooler can result in inaccurate temperature readings.
  5. Environmental Factors: Extreme temperatures or conditions can affect the sensor's performance and accuracy.

Symptoms of P007E 2018 GMC Sierra

  1. Check Engine Light: The most common symptom associated with the P007E code is the illumination of the check engine light on the vehicle's dashboard.
  2. Rough Idling: Erratic temperature readings from the Charge Air Cooler sensor can result in rough idling or inconsistent engine performance.
  3. Decreased Fuel Efficiency: Incorrect temperature data can lead to improper fuel delivery, causing decreased fuel efficiency and potentially higher fuel consumption.
  4. Reduced Power: The engine may experience a loss of power or acceleration due to inaccurate sensor readings.
  5. Emission Issues: The vehicle may fail emissions tests or produce higher emissions than usual due to the sensor's erratic behavior.

How to Fix P007E 2018 GMC Sierra

  1. Diagnose the Issue: Use a diagnostic scanner to retrieve the trouble code and perform further testing to pinpoint the exact cause of the erratic sensor readings.
  2. Inspect Sensor and Wiring: Check the Charge Air Cooler Temperature Sensor for any visible damage or signs of malfunction. Inspect the wiring connections for corrosion or disconnection.
  3. Replace Sensor: If the sensor is faulty, replace it with a new, OEM-quality sensor to ensure accurate temperature readings.
  4. Repair Wiring: Repair or replace any damaged wiring connections to ensure proper signal transmission between the sensor and ECM.
  5. Clear Codes and Test: Clear the DTC from the ECM memory, start the vehicle, and test drive to verify that the issue has been resolved.

Cost to Fix P007E 2018 GMC Sierra

The cost of repairing a Charge Air Cooler Temperature Sensor 1 Circuit Erratic issue can vary depending on the specific cause of the problem and the labor rates in your area. Typically, the cost of a new sensor can range from $50 to $150, while labor costs can vary between $100 and $300, depending on the shop's hourly rates and the complexity of the repair. In total, you can expect to pay anywhere from $150 to $450 for parts and labor to address this issue. It's recommended to consult with a trusted mechanic or repair shop to get an accurate estimate based on your vehicle's make and model.

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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 P007E 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code P007E on a 2018 GMC Sierra related to the Charge Air Cooler Temperature Sensor 1 Circuit Erratic?

The common symptoms include poor engine performance, reduced fuel efficiency, and the check engine light illuminating on the dashboard.

2. What are the possible causes of OBDII code P007E on a 2018 GMC Sierra indicating a Charge Air Cooler Temperature Sensor 1 Circuit Erratic?

Possible causes can include a faulty charge air cooler temperature sensor, wiring issues, sensor connector problems, or a malfunctioning engine control module.

3. How can I diagnose the OBDII code P007E on a 2018 GMC Sierra for the Charge Air Cooler Temperature Sensor 1 Circuit Erratic?

Diagnosing this code may involve using a scan tool to retrieve the specific diagnostic trouble code, checking the sensor's wiring and connector for any damage, and testing the sensor's resistance and voltage values.

4. What steps should I take to repair OBDII code P007E on a 2018 GMC Sierra related to the Charge Air Cooler Temperature Sensor 1 Circuit Erratic?

Repair steps may involve replacing the charge air cooler temperature sensor if it's found to be faulty, repairing any damaged wiring or connectors, and clearing the trouble codes to see if the issue is resolved.

5. Can I drive my 2018 GMC Sierra with OBDII code P007E indicating a Charge Air Cooler Temperature Sensor 1 Circuit Erratic?

It is generally not recommended to drive the vehicle with this code present, as it can lead to further engine issues and potential damage. It's best to address the problem promptly to avoid complications.

6. Are there any tips to prevent OBDII code P007E from reoccurring on a 2018 GMC Sierra with a Charge Air Cooler Temperature Sensor 1 Circuit Erratic issue?

Regularly inspecting the sensor and its connections for any signs of wear or damage, keeping up with routine vehicle maintenance, and addressing any warning lights promptly can help prevent this code from reoccurring.

7. Is it necessary to visit a mechanic to fix OBDII code P007E on a 2018 GMC Sierra related to the Charge Air Cooler Temperature Sensor 1 Circuit Erratic?

While some basic diagnostic and repair steps can be done by DIY enthusiasts, it's recommended to consult a qualified mechanic for a thorough diagnosis and proper repair to ensure the issue is resolved correctly.

8. Will resetting the OBDII system clear the P007E code on a 2018 GMC Sierra with a Charge Air Cooler Temperature Sensor 1 Circuit Erratic problem?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the code is not addressed, the code is likely to reappear. It's essential to diagnose and fix the root cause of the problem.

9. Can extreme weather conditions affect the occurrence of OBDII code P007E on a 2018 GMC Sierra with a Charge Air Cooler Temperature Sensor 1 Circuit Erratic issue?

Extreme temperatures can potentially impact the sensor's performance and trigger erratic readings, leading to the code being set. Ensuring the sensor is properly insulated and protected can help mitigate this issue.

10. How long does it typically take to repair OBDII code P007E on a 2018 GMC Sierra indicating a Charge Air Cooler Temperature Sensor 1 Circuit Erratic problem?

The repair time can vary depending on the exact cause of the code and the complexity of the repair needed. It could take anywhere from a few hours to a full day, depending on the extent of the issue and the availability of parts.

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