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P3425 Chevrolet Code - Cylinder 4 Deactivation Solenoid Valve Control Circuit

Quick Answer

The P3425 diagnostic trouble code (DTC) for Chevrolet vehicles pertains to the Cylinder 4 Deactivation Solenoid Valve Control Circuit. Common causes include Faulty cylinder deactivation solenoid valve, Wiring issues in the control circuit, Corrosion or poor connection in the electrical system. 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
P3425 Chevrolet indicates Cylinder 4 Deactivation Solenoid Valve Control Circuit.
Common causes
Common causes include Faulty cylinder deactivation solenoid valve, Wiring issues in the control circuit, Corrosion or poor connection in the electrical system.
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 P3425 Chevrolet Description

The P3425 diagnostic trouble code (DTC) for Chevrolet vehicles pertains to the Cylinder 4 Deactivation Solenoid Valve Control Circuit. This code is indicative of a problem with the control circuit of the solenoid responsible for managing the deactivation of cylinder 4 in the engine. In vehicles equipped with cylinder deactivation technology, such as Chevrolet's Active Fuel Management (AFM) system, certain cylinders are temporarily disabled to improve fuel efficiency during light-load driving conditions.

OBDII Code P3425 Chevrolet - Cylinder 4 Deactivation Solenoid Valve Control Circuit
P3425 Chevrolet Code - Cylinder 4 Deactivation Solenoid Valve Control Circuit

Common Causes of P3425 Chevrolet

  1. Faulty cylinder deactivation solenoid valve
  2. Wiring issues in the control circuit
  3. Corrosion or poor connection in the electrical system
  4. Engine oil contamination affecting solenoid operation
  5. ECM (Engine Control Module) software-related issues

Symptoms of P3425 Chevrolet

  1. Decreased fuel efficiency
  2. Engine power loss
  3. Rough idle or vibrations
  4. Engine misfires
  5. Illumination of the check engine light

How to Fix P3425 Chevrolet

  1. Diagnose the specific issue by using a scan tool to confirm the P3425 code.
  2. Inspect the cylinder deactivation solenoid valve and its wiring for any visible damage or corrosion.
  3. Test the solenoid valve's operation using a multimeter to check for proper resistance.
  4. Replace the faulty solenoid valve if necessary and repair any damaged wiring.
  5. Clear the DTC and perform a test drive to ensure the code does not return.

Cost to Fix P3425 Chevrolet

The cost of repairing a P3425 code can vary depending on the specific issue and labor rates in your area. Typically, replacing a cylinder deactivation solenoid valve can range from $150 to $300, including parts and labor. Additional costs may apply if wiring repairs or other components need attention. It's advisable to consult with a trusted mechanic or dealership for an accurate estimate based on your vehicle's make and model. Keep in mind that diagnostic time and labor rates can impact the overall cost of the repair.

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Information for Specific Chevrolet Models

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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