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Engine-Codes – Chevrolet – P3402 2018 Chevrolet Silverado

P3402 2018 Chevrolet Silverado Code - Cylinder 1 Deactivation Solenoid Valve Control Performance

Quick Answer

The P3402 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado specifically relates to the Cylinder 1 Deactivation Solenoid Valve Control Performance. Common causes include Faulty cylinder deactivation solenoid valve, Electrical connection issues, Wiring harness problems. 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
P3402 2018 Chevrolet Silverado indicates Cylinder 1 Deactivation Solenoid Valve Control Performance.
Common causes
Common causes include Faulty cylinder deactivation solenoid valve, Electrical connection issues, Wiring harness problems.
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 07, 2024
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Code P3402 2018 Chevrolet Silverado Description

The P3402 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado specifically relates to the Cylinder 1 Deactivation Solenoid Valve Control Performance. This code indicates that there is an issue with the control of the solenoid valve responsible for deactivating cylinder 1 in the engine. In vehicles equipped with cylinder deactivation technology, individual cylinders can be shut down during light load conditions to improve fuel efficiency. When the solenoid valve control performance is compromised, it can lead to various issues affecting the vehicle's performance and efficiency.

OBDII Code P3402 2018 Chevrolet Silverado - Cylinder 1 Deactivation Solenoid Valve Control Performance
P3402 2018 Chevrolet Silverado Code - Cylinder 1 Deactivation Solenoid Valve Control Performance

Common Causes of P3402 2018 Chevrolet Silverado

  1. Faulty cylinder deactivation solenoid valve
  2. Electrical connection issues
  3. Wiring harness problems
  4. ECM software glitches
  5. Mechanical failure of the solenoid valve

Symptoms of P3402 2018 Chevrolet Silverado

  1. Decreased fuel efficiency
  2. Engine misfires
  3. Rough idling
  4. Reduced engine performance
  5. Check Engine Light illuminated

How to Fix P3402 2018 Chevrolet Silverado

  1. Perform a thorough diagnostic scan to confirm the P3402 code and identify the specific issue with the cylinder 1 deactivation solenoid valve.
  2. Inspect the electrical connections and wiring harness related to the solenoid valve for any damage or corrosion.
  3. Test the solenoid valve itself for proper operation and replace it if found to be faulty.
  4. Clear the DTC and perform a test drive to ensure that the issue has been resolved and the code does not return.
  5. If the problem persists, further diagnosis may be needed to determine any underlying ECM or mechanical issues.

Cost to Fix P3402 2018 Chevrolet Silverado

The cost of repairing a Cylinder 1 Deactivation Solenoid Valve Control Performance issue can vary depending on the specific cause of the problem and the labor rates in your area. Typically, replacing a faulty solenoid valve can range from $150 to $300, including parts and labor. Additional diagnostic time and potential ECM reprogramming may increase the total cost. It's recommended to consult with a trusted mechanic or dealership to get an accurate estimate based on your vehicle's make and model. Keep in mind that rates can vary widely, so it's advisable to shop around for the best deal.

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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 P3402 2018 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P3402 in a 2018 Chevrolet Silverado?

The common symptoms of OBDII code P3402 in a 2018 Chevrolet Silverado include poor engine performance, rough idling, decreased fuel efficiency, and potential engine misfires.

2. What does the OBDII code P3402 on a 2018 Chevrolet Silverado indicate?

OBDII code P3402 on a 2018 Chevrolet Silverado indicates an issue with the Cylinder 1 Deactivation Solenoid Valve Control Performance.

3. What are the possible causes of OBDII code P3402 in a 2018 Chevrolet Silverado?

Possible causes of OBDII code P3402 in a 2018 Chevrolet Silverado include a faulty deactivation solenoid valve, wiring issues, poor connections, or a malfunction in the engine control module (ECM).

4. How can I diagnose the OBDII code P3402 on my 2018 Chevrolet Silverado?

Diagnosing OBDII code P3402 on a 2018 Chevrolet Silverado involves using a diagnostic scanner to retrieve the trouble codes, inspecting the deactivation solenoid valve and its wiring, and checking for any loose connections or damaged components.

5. Can I continue to drive my 2018 Chevrolet Silverado with OBDII code P3402?

It is not recommended to continue driving your 2018 Chevrolet Silverado with OBDII code P3402, as it can lead to further damage to the engine and affect overall performance. It's best to address the issue promptly.

6. How do I repair OBDII code P3402 on a 2018 Chevrolet Silverado?

Repairing OBDII code P3402 on a 2018 Chevrolet Silverado may involve replacing the Cylinder 1 Deactivation Solenoid Valve, repairing any damaged wiring or connections, or reprogramming the engine control module (ECM).

7. Is it necessary to reset the OBDII code P3402 after repairs on a 2018 Chevrolet Silverado?

Yes, it is important to reset the OBDII code P3402 after making repairs on a 2018 Chevrolet Silverado. This can be done using a diagnostic scanner to clear the trouble codes and reset the ECM.

8. Can a DIY enthusiast fix OBDII code P3402 on a 2018 Chevrolet Silverado?

A DIY enthusiast with knowledge of automotive repairs and access to the necessary tools may be able to address OBDII code P3402 on a 2018 Chevrolet Silverado. However, if unsure, it's best to consult a professional mechanic.

9. How much does it cost to repair OBDII code P3402 on a 2018 Chevrolet Silverado?

The cost to repair OBDII code P3402 on a 2018 Chevrolet Silverado can vary depending on the exact cause of the issue, parts needed for replacement, and labor costs. It's advisable to consult a mechanic for an accurate estimate.

10. Can a malfunctioning Cylinder 1 Deactivation Solenoid Valve affect the overall performance of a 2018 Chevrolet Silverado?

Yes, a malfunctioning Cylinder 1 Deactivation Solenoid Valve can significantly affect the overall performance of a 2018 Chevrolet Silverado, leading to poor engine operation, reduced fuel efficiency, and potential drivability issues.

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