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P3425 2018 Chevrolet Silverado Code - Cylinder 4 Deactivation Solenoid Valve Control Circuit

Quick Answer

The P3425 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado specifically relates to the Cylinder 4 Deactivation Solenoid Valve Control Circuit. Common causes include Faulty deactivation solenoid valve, Wiring or connector issues in the control circuit, Faulty PCM. 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 2018 Chevrolet Silverado indicates Cylinder 4 Deactivation Solenoid Valve Control Circuit.
Common causes
Common causes include Faulty deactivation solenoid valve, Wiring or connector issues in the control circuit, Faulty PCM.
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 11, 2024
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Code P3425 2018 Chevrolet Silverado Description

The P3425 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado specifically relates to the Cylinder 4 Deactivation Solenoid Valve Control Circuit. In modern engines, especially those with variable displacement technology, certain cylinders can be deactivated during light-load driving conditions to improve fuel efficiency. The deactivation solenoid valve controls the flow of oil to the lifters of the affected cylinders, allowing them to be disabled and reactivated as needed.

OBDII Code P3425 2018 Chevrolet Silverado - Cylinder 4 Deactivation Solenoid Valve Control Circuit
P3425 2018 Chevrolet Silverado Code - Cylinder 4 Deactivation Solenoid Valve Control Circuit

Common Causes of P3425 2018 Chevrolet Silverado

  1. Faulty deactivation solenoid valve
  2. Wiring or connector issues in the control circuit
  3. Faulty PCM
  4. Low oil pressure
  5. Mechanical issues affecting cylinder deactivation

Symptoms of P3425 2018 Chevrolet Silverado

  1. Decreased fuel efficiency
  2. Rough idling
  3. Engine misfires
  4. Engine stalling
  5. Illumination of the check engine light

How to Fix P3425 2018 Chevrolet Silverado

  1. Perform a thorough inspection of the deactivation solenoid valve, wiring, and connectors for any signs of damage or corrosion.
  2. Test the deactivation solenoid valve with a multimeter to check for proper functionality.
  3. Check oil pressure to ensure it is within the manufacturer's specifications.
  4. If necessary, replace the deactivation solenoid valve, repair any damaged wiring or connectors, and clear the code from the PCM.
  5. After repairs are completed, perform a test drive to ensure the issue has been resolved and the code does not reappear.

Cost to Fix P3425 2018 Chevrolet Silverado

The typical repair costs for addressing a P3425 code on a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, the cost of replacing a deactivation solenoid valve can range from $100 to $300, while diagnostic and labor costs can add another $100 to $200. Keep in mind that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.

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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 P3425 2018 Chevrolet Silverado Code

1. What are common symptoms of OBDII code P3425 in a 2018 Chevrolet Silverado?

The common symptoms of OBDII code P3425 in a 2018 Chevrolet Silverado include rough idling, decreased fuel efficiency, and potential engine misfires.

2. What does the OBDII code P3425 indicate in a 2018 Chevrolet Silverado?

OBDII code P3425 in a 2018 Chevrolet Silverado indicates a problem with the Cylinder 4 Deactivation Solenoid Valve Control Circuit.

3. What are the possible causes of OBDII code P3425 in a 2018 Chevrolet Silverado?

Possible causes of OBDII code P3425 in a 2018 Chevrolet Silverado include a faulty cylinder 4 deactivation solenoid valve, wiring issues, or a malfunctioning engine control module.

4. How can I diagnose the issue related to OBDII code P3425 in my 2018 Chevrolet Silverado?

Diagnosing the issue related to OBDII code P3425 in a 2018 Chevrolet Silverado involves checking the solenoid valve, inspecting the wiring for any damage, and testing the circuit for proper connectivity.

5. Is it safe to continue driving my 2018 Chevrolet Silverado with OBDII code P3425?

It is not recommended to continue driving your 2018 Chevrolet Silverado with OBDII code P3425, as it can lead to further engine damage and potential safety hazards.

6. How can I repair OBDII code P3425 in my 2018 Chevrolet Silverado?

Repairing OBDII code P3425 in a 2018 Chevrolet Silverado may involve replacing the faulty cylinder 4 deactivation solenoid valve, repairing any damaged wiring, or reprogramming the engine control module.

7. Can I reset the OBDII code P3425 in my 2018 Chevrolet Silverado without fixing the underlying issue?

Resetting the OBDII code P3425 in a 2018 Chevrolet Silverado without fixing the underlying issue will only temporarily clear the code. The issue will likely resurface if not properly addressed.

8. How much does it cost to repair OBDII code P3425 in a 2018 Chevrolet Silverado?

The cost to repair OBDII code P3425 in a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars.

9. Can a DIY enthusiast fix OBDII code P3425 in a 2018 Chevrolet Silverado?

Depending on their skill level and access to tools, a DIY enthusiast may be able to fix OBDII code P3425 in a 2018 Chevrolet Silverado by following repair guides and consulting with automotive experts if needed.

10. How often does OBDII code P3425 occur in a 2018 Chevrolet Silverado?

OBDII code P3425 in a 2018 Chevrolet Silverado can occur sporadically or more frequently depending on the driving conditions, maintenance history, and overall health of the vehicle's components.

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