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Engine-Codes – Chevrolet – P2108 Chevrolet

P2108 Chevrolet Code - Throttle Actuator Control Module Performance

Quick Answer

The P2108 code for Chevrolet vehicles refers to an issue with the Throttle Actuator Control Module (TACM) performance. Common causes include Wiring issues or electrical faults, Sensor malfunctions, Defective throttle body. 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
P2108 Chevrolet indicates Throttle Actuator Control Module Performance.
Common causes
Common causes include Wiring issues or electrical faults, Sensor malfunctions, Defective throttle body.
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 09, 2024
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Code P2108 Chevrolet Description

The P2108 code for Chevrolet vehicles refers to an issue with the Throttle Actuator Control Module (TACM) performance. The TACM is responsible for controlling the throttle valve in the throttle body, regulating the amount of air entering the engine. When this module malfunctions or fails to perform as expected, it can lead to significant performance issues in the vehicle.

OBDII Code P2108 Chevrolet - Throttle Actuator Control Module Performance
P2108 Chevrolet Code - Throttle Actuator Control Module Performance

Common Causes of P2108 Chevrolet

  1. Wiring issues or electrical faults
  2. Sensor malfunctions
  3. Defective throttle body
  4. Electronic component failures
  5. Corrosion or damage to TACM connectors

Symptoms of P2108 Chevrolet

  1. Reduced engine power
  2. Poor acceleration
  3. Rough idling
  4. Stalling
  5. Decreased fuel efficiency

How to Fix P2108 Chevrolet

  1. Diagnose the issue by using a scan tool to retrieve the trouble codes and perform a thorough inspection of the TACM and related components.
  2. Check the wiring and connectors for any signs of damage or corrosion, repairing or replacing as needed.
  3. Test the throttle body and sensors to ensure they are functioning correctly, replacing any faulty parts.
  4. Reset the TACM and perform a throttle body relearn procedure to calibrate the system.
  5. Clear the trouble codes and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P2108 Chevrolet

The typical repair costs for addressing a P2108 code on a Chevrolet vehicle can range from $200 to $500, depending on the specific components that need to be repaired or replaced. This estimate includes the cost of parts and labor. It's important to note that the actual cost can vary based on factors such as the location of the repair shop, the make and model of the vehicle, and the type of engine. Additionally, diagnosis time and labor rates at auto repair shops can vary, with rates typically ranging from $80 to $150 per hour. It's recommended to consult with a professional mechanic for a more accurate estimate based on your specific vehicle and situation.

What does this mean?

Tech Notes for P2108 Chevrolet

There is a factory service bulletin for the P2108 code on following Chevrolet vehicles:



2006-2007 Chevrolet Avalanche

2006-2007 Chevrolet Express 1500/2500/3500

2006-2007 Chevrolet Silverado

2006-2007 Chevrolet Silverado Flex Fuel

2006-2007 Chevrolet Silverado Hybrid

2006-2007 Chevrolet Silverado SS

2006-2007 Chevrolet Silverado 2500/3500 HD

2006-2007 Chevrolet Suburban

2006-2007 Chevrolet Tahoe

Chevrolet Factory Service Bulletin OBDII Code P2108

When is the Code Detected?

The Throttle Actuator Control (TAC) module is unable to write or read data from the Random Access Memory (RAM)

Need more information about the P2108 Chevrolet 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 P2108 Chevrolet Code

1. What are the common symptoms of OBDII code P2108 in a Chevrolet vehicle?

The common symptoms of OBDII code P2108 in a Chevrolet vehicle include the engine stalling, limited engine power, and the vehicle going into "limp mode."

2. What are the possible causes of OBDII code P2108 in a Chevrolet?

Possible causes of OBDII code P2108 in a Chevrolet include a faulty throttle actuator control module, wiring issues, or a problem with the throttle body itself.

3. How can I diagnose OBDII code P2108 in my Chevrolet?

Diagnosing OBDII code P2108 in a Chevrolet involves using a diagnostic scanner to retrieve the trouble code, checking the throttle actuator control module and related wiring for any visible damage, and performing a thorough inspection of the throttle body.

4. Can I drive my Chevrolet with OBDII code P2108?

It is not recommended to drive your Chevrolet with OBDII code P2108, as it can lead to unsafe driving conditions and further damage to the vehicle. It is best to address the issue promptly.

5. How can I repair OBDII code P2108 in my Chevrolet?

Repairing OBDII code P2108 in a Chevrolet may involve replacing the throttle actuator control module, repairing any damaged wiring, or cleaning/replacing the throttle body. It is recommended to consult a professional mechanic for proper diagnosis and repair.

6. Is OBDII code P2108 a serious issue in a Chevrolet?

OBDII code P2108 can be a serious issue in a Chevrolet as it directly affects the throttle control of the vehicle, leading to performance issues and potentially unsafe driving conditions. It is important to address this code promptly.

7. Can a DIY enthusiast fix OBDII code P2108 in a Chevrolet?

While some DIY enthusiasts may have the skills to diagnose and repair OBDII code P2108 in a Chevrolet, it is recommended to seek professional help due to the complexity of the throttle control system and the importance of proper repairs for safe driving.

8. Will resetting the OBDII code P2108 in my Chevrolet make it go away permanently?

Resetting the OBDII code P2108 in your Chevrolet may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return. It is important to diagnose and repair the root cause of the code for a permanent solution.

9. How much does it cost to repair OBDII code P2108 in a Chevrolet?

The cost to repair OBDII code P2108 in a Chevrolet can vary depending on the specific problem, parts needed, and labor rates. It is recommended to obtain quotes from different mechanics or repair shops for an accurate estimate.

10. Can OBDII code P2108 cause damage to other components in a Chevrolet?

OBDII code P2108 can potentially cause damage to other components in a Chevrolet if left unresolved, especially if the vehicle is driven with limited engine power or in "limp mode." It is crucial to address this code promptly to prevent further damage.

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