Engine-CodesDodge – P3426 Dodge

P3426 Dodge Code - Cylinder 4 Deactivation Control Performance

Quick Answer

The P3426 diagnostic trouble code (DTC) for Dodge vehicles specifically relates to cylinder 4 deactivation control performance. Common causes include Faulty cylinder deactivation solenoid, Clogged oil passages or oil filter, Defective engine control module (ECM). 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
P3426 Dodge indicates Cylinder 4 Deactivation Control Performance.
Common causes
Common causes include Faulty cylinder deactivation solenoid, Clogged oil passages or oil filter, Defective engine control module (ECM).
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 P3426 Dodge Description

The P3426 diagnostic trouble code (DTC) for Dodge vehicles specifically relates to cylinder 4 deactivation control performance. In vehicles equipped with cylinder deactivation technology, also known as cylinder deactivation systems or Multi-Displacement Systems (MDS), certain cylinders are shut off during light load conditions to improve fuel efficiency. In this case, cylinder 4 is not performing as expected in terms of deactivation control, which can lead to various issues.

OBDII Code P3426 Dodge - Cylinder 4 Deactivation Control Performance
P3426 Dodge Code - Cylinder 4 Deactivation Control Performance

Common Causes of P3426 Dodge

  1. Faulty cylinder deactivation solenoid
  2. Clogged oil passages or oil filter
  3. Defective engine control module (ECM)
  4. Wiring harness issues
  5. Mechanical issues with cylinder 4, such as worn piston rings or valve train components

Symptoms of P3426 Dodge

  1. Rough idle or engine misfires
  2. Decreased fuel efficiency
  3. Lack of power or acceleration
  4. Check engine light illuminated
  5. Vehicle may fail emissions tests

How to Fix P3426 Dodge

  1. Diagnose the root cause of the issue using a scan tool to confirm the P3426 code and perform a visual inspection of related components.
  2. Inspect the cylinder deactivation solenoid, oil passages, and wiring harness for any signs of damage or blockages.
  3. Test the ECM and related sensors for proper functionality.
  4. Replace the faulty cylinder deactivation solenoid, clean out any clogged oil passages, repair wiring harness issues, or replace the ECM if necessary.
  5. Clear the code, reset the ECM, and test drive the vehicle to ensure proper operation.

Cost to Fix P3426 Dodge

The typical repair costs for addressing a P3426 code can vary depending on the specific cause of the issue and the labor rates at the repair shop. On average, the cost of parts for this repair can range from $100 to $300, while labor costs can range from $100 to $300 or more. Keep in mind that diagnosis time and labor rates can vary based on location, vehicle make and model, and engine type. It's recommended to consult with a trusted mechanic or dealership for a more accurate estimate based on your specific situation.

Tech Notes for P3426 Dodge

Although in some cases changing the engine oil may fix the problem, usually the Multi Displacement System Solenoid may need to replaced.

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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 P3426 Dodge Code

1. What are the common symptoms of OBDII code P3426 in a Dodge related to Cylinder 4 Deactivation Control Performance?

- Common symptoms include engine misfires, rough idling, reduced power, and the illumination of the Check Engine Light.

2. What are the possible causes of OBDII code P3426 in a Dodge?

- The code P3426 can be triggered by issues with the cylinder deactivation system, such as a faulty solenoid, wiring problems, or a malfunctioning engine control module.

3. How can I diagnose the OBDII code P3426 in my Dodge related to Cylinder 4 Deactivation Control Performance?

- Diagnosis typically involves using an OBDII scanner to retrieve the trouble codes, followed by a thorough inspection of the cylinder deactivation system components and related wiring.

4. Can driving with OBDII code P3426 in a Dodge cause further damage to the vehicle?

- Continued driving with code P3426 can potentially lead to more severe engine issues, reduced fuel efficiency, and increased emissions.

5. What are some repair tips for fixing OBDII code P3426 in a Dodge?

- Repair tips may include checking and repairing any damaged wiring, replacing the faulty solenoid, ensuring proper oil levels and quality, and resetting the engine control module.

6. Is it safe to continue driving my Dodge with OBDII code P3426 present?

- It is not recommended to drive the vehicle with code P3426 active, as it can lead to further damage and potential safety hazards. It is advised to address the issue promptly.

7. How much does it typically cost to repair OBDII code P3426 in a Dodge?

- The cost of repairing code P3426 can vary depending on the exact cause of the issue and the labor rates in your area. It is advisable to consult a mechanic for an accurate estimate.

8. Can I reset OBDII code P3426 in my Dodge without fixing the underlying issue?

- While you can clear the code temporarily, the underlying problem causing code P3426 will persist. It is crucial to address the root cause of the issue to prevent further issues.

9. Are there any preventative measures I can take to avoid OBDII code P3426 in my Dodge?

- Regular maintenance, such as timely oil changes, can help prevent issues with the cylinder deactivation system that may trigger code P3426.

10. How long does it typically take to repair OBDII code P3426 in a Dodge?

- The repair time for code P3426 can vary based on the exact cause of the issue and the complexity of the repair. It is best to consult with a mechanic for a more accurate timeframe.

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