AutoCodes – Chrysler – P3427 Chrysler

P3427 Chrysler Code - Cylinder 4 Deactivation Control Circuit Low

Quick Answer

When all the criteria has been met,power is supplied to each Multi-Displacement System (MDS) Solenoid when engine is making a transition from 8 cylinder mode to 4 cylinder mode. Common causes include Low oil pressure, Restricted oil passage, Engine mechanical condition. 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: P3427 Chrysler indicates Cylinder 4 Deactivation Control Circuit Low.
Common causes: Common causes include Low oil pressure, Restricted oil passage, Engine mechanical condition.
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.

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Code Popularity 1,472

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P3427 Chrysler Description

When all the criteria has been met,power is supplied to each Multi-Displacement System (MDS) Solenoid when engine is making a transition from 8 cylinder mode to 4 cylinder mode. By actuating the solenoid, oil pressure is raised to the pair of lifter that coincide with each particular solenoid. The oil pressure pushes in the locking pins that allows the lifter to collapse, decoupling the valves and camshafts.

OBDII Code P3427 Chrysler - Cylinder 4 Deactivation Control Circuit Low - AutoCodes.com — P3427 Chrysler Code - Cylinder 4 Deactivation Control Circuit Low

What does this mean?

What are the Possible Causes of the DTC P3427 Chrysler?

Low oil pressure
Restricted oil passage
Engine mechanical condition
Faulty Multiple Displacement System (MDS) Solenoid
Multiple Displacement System (MDS) Solenoid harness is open or shorted
Multiple Displacement System (MDS) Solenoid circuit poor electrical connection

How to Fix the DTC P3427 Chrysler?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P3427 Chrysler code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Need Help with the Code?

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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 P3427 Chrysler Code

1. What are common symptoms of OBDII code P3427 in a Chrysler vehicle?

- Common symptoms of P3427 include engine misfires, reduced engine performance, rough idling, and illuminated Check Engine Light.

2. What does the OBDII code P3427 for Chrysler mean?

- The P3427 code indicates a malfunction in the Cylinder 4 Deactivation Control Circuit, specifically a low signal detected.

3. What are possible causes of OBDII code P3427 in a Chrysler vehicle?

- Potential causes of P3427 include a faulty cylinder deactivation solenoid, wiring issues in the control circuit, low engine oil levels, or a malfunctioning Engine Control Module (ECM).

4. How serious is the OBDII code P3427 in a Chrysler vehicle?

- While the vehicle may still be drivable with P3427, it is important to address the issue promptly to prevent further damage to the engine and ensure optimal performance.

5. Can I continue driving my Chrysler with OBDII code P3427?

- It is generally not recommended to drive the vehicle with an active P3427 code, as it can lead to increased fuel consumption, reduced engine efficiency, and potential long-term engine damage.

6. How can I diagnose and repair OBDII code P3427 in my Chrysler?

- Diagnosing P3427 typically involves checking the cylinder deactivation system components, inspecting the wiring for faults, and testing the ECM. Repair may involve replacing a faulty solenoid, repairing wiring issues, or reprogramming the ECM.

7. Will resetting the Check Engine Light resolve OBDII code P3427 in my Chrysler?

- Resetting the Check Engine Light may temporarily turn it off, but it will not fix the underlying issue causing P3427. It is recommended to diagnose and repair the root cause of the code.

8. How much does it cost to fix OBDII code P3427 in a Chrysler?

- The cost of repairing P3427 can vary depending on the specific cause of the issue, parts needed for replacement, and labor costs. It is advisable to consult a mechanic for a detailed estimate.

9. Can a DIY enthusiast fix OBDII code P3427 in a Chrysler?

- Depending on the individual's skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair P3427 themselves. However, complex electrical issues may require professional assistance.

10. How can I prevent OBDII code P3427 from recurring in my Chrysler?

- To prevent P3427 from coming back, it is essential to perform regular vehicle maintenance, including checking engine oil levels, inspecting wiring for damage, and addressing any related issues promptly.