Engine-CodesChevrolet – P1008 2017 Chevrolet Silverado

P1008 2017 Chevrolet Silverado Code - Engine Coolant Bypass Valve Command Signal Message Counter Incorrect

Quick Answer

The P1008 code on a 2017 Chevrolet Silverado indicates a problem with the Engine Coolant Bypass Valve Command Signal Message Counter being incorrect. Common causes include Faulty engine coolant bypass valve, Wiring or electrical connection issues, ECM software malfunction. 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
P1008 2017 Chevrolet Silverado indicates Engine Coolant Bypass Valve Command Signal Message Counter Incorrect.
Common causes
Common causes include Faulty engine coolant bypass valve, Wiring or electrical connection issues, ECM software malfunction.
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.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P1008 2017 Chevrolet Silverado Description

The P1008 code on a 2017 Chevrolet Silverado indicates a problem with the Engine Coolant Bypass Valve Command Signal Message Counter being incorrect. The engine coolant bypass valve is responsible for controlling the flow of coolant in the engine, ensuring that the engine maintains optimal operating temperature. When the command signal message counter is incorrect, it means that there is a discrepancy between the expected number of signals sent by the valve and the actual number of signals received by the engine control module (ECM).

OBDII Code P1008 2017 Chevrolet Silverado - Engine Coolant Bypass Valve Command Signal Message Counter Incorrect
P1008 2017 Chevrolet Silverado Code - Engine Coolant Bypass Valve Command Signal Message Counter Incorrect

Common Causes of P1008 2017 Chevrolet Silverado

  1. Faulty engine coolant bypass valve
  2. Wiring or electrical connection issues
  3. ECM software malfunction
  4. Coolant system blockages or leaks
  5. Engine coolant temperature sensor malfunction

Symptoms of P1008 2017 Chevrolet Silverado

  1. Engine overheating or running hot
  2. Engine temperature gauge fluctuating erratically
  3. Decreased fuel efficiency
  4. Loss of engine power
  5. Engine stalling or rough idling

How to Fix P1008 2017 Chevrolet Silverado

  1. Begin by conducting a visual inspection of the engine coolant bypass valve, wiring, and electrical connections to check for any visible damage or loose connections.
  2. Use a diagnostic scan tool to retrieve the specific error codes and data related to the engine coolant bypass valve command signal message counter.
  3. Test the engine coolant bypass valve and coolant temperature sensor to ensure they are functioning correctly.
  4. If necessary, replace the faulty engine coolant bypass valve or coolant temperature sensor.
  5. Clear the error codes from the ECM's memory and perform a test drive to verify that the issue has been resolved.

Cost to Fix P1008 2017 Chevrolet Silverado

The cost of repairing the engine coolant bypass valve command signal message counter issue on a 2017 Chevrolet Silverado can vary depending on the exact cause of the problem and the cost of parts and labor in your area. Generally, the cost of parts for this repair can range from $100 to $300, while labor costs can range from $150 to $400. Therefore, the total repair cost may fall between $250 and $700. It is advisable to consult with a trusted mechanic or dealership to get a more accurate estimate based on your specific situation.

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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.

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