AutoCodes – Jeep – P3442 Jeep

P3442 Jeep Code - Cylinder 6 Deactivation Control Performance

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: P3442 Jeep indicates Cylinder 6 Deactivation Control Performance.
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 1,643

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 P3442 Jeep 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 P3442 Jeep - Cylinder 6 Deactivation Control Performance - AutoCodes.com — P3442 Jeep Code - Cylinder 6 Deactivation Control Performance

What does this mean?

What are the Possible Causes of the DTC P3442 Jeep?

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 P3442 Jeep?

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 P3442 Jeep 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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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 P3442 Jeep Code

What does OBDII code P3442 mean for a Jeep?

P3442 indicates a problem with Cylinder 6 Deactivation Control Performance, often related to the vehicleâ€™s Multi-Displacement System (MDS) not functioning properly.

What are the common symptoms of code P3442 on a Jeep?

Symptoms may include reduced fuel efficiency, rough engine operation, misfires, abnormal engine noises, and an illuminated check engine light.

What causes code P3442 in a Jeep?

Common causes include a faulty lifter, malfunctioning solenoid, low oil pressure, dirty or degraded engine oil, or wiring and connector issues in the MDS circuit.

Can low oil pressure trigger code P3442?

Yes, low oil pressure can prevent proper cylinder deactivation, leading to the code. Ensure the oil level and quality are adequate.

How can I diagnose code P3442 on my Jeep?

Start by checking the oil level and condition, inspecting wiring and connectors for damage, and testing the solenoid and lifter for Cylinder 6. Use a scan tool to monitor MDS system performance.

Is it safe to drive with code P3442 active?

Driving with this code may cause engine wear or damage over time due to improper cylinder deactivation. It's best to address it promptly.

How do I fix code P3442 on my Jeep?

Possible repairs include replacing a faulty lifter or solenoid, repairing damaged wiring, performing an oil change, or addressing low oil pressure issues.

Can dirty engine oil cause code P3442?

Yes, dirty or contaminated oil can interfere with the MDS system, affecting cylinder deactivation and triggering the code.

How much does it cost to repair code P3442 on a Jeep?

Repair costs vary depending on the issue. An oil change may cost $50-$100, while lifter or solenoid replacement can range from $300-$1,000.

Will clearing the code P3442 fix the issue permanently?

No, clearing the code will only temporarily remove the check engine light. The underlying problem must be diagnosed and repaired to prevent the code from returning.