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P0442 2012 Nissan Pathfinder Code - EVAP Control System Leak Detected Small Leak

Quick Answer

The P0442 diagnostic trouble code for a 2012 Nissan Pathfinder indicates that the Evaporative Emission Control System has detected a small leak. Common causes include Loose or damaged gas cap, Cracked or loose EVAP system hose, Faulty purge valve. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0442 2012 Nissan Pathfinder indicates EVAP Control System Leak Detected Small Leak.
Common causes
Common causes include Loose or damaged gas cap, Cracked or loose EVAP system hose, Faulty purge valve.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0442 2012 Nissan Pathfinder Description

The P0442 diagnostic trouble code for a 2012 Nissan Pathfinder indicates that the Evaporative Emission Control System has detected a small leak. The Evaporative Emission Control System, also known as the EVAP system, is responsible for preventing fuel vapors from escaping into the atmosphere. When a small leak is detected, it means that there is a breach in the system that is allowing fuel vapors to escape. This can lead to increased emissions, reduced fuel efficiency, and potentially harm the environment.

OBDII Code P0442 2012 Nissan Pathfinder - EVAP Control System Leak Detected Small Leak
P0442 2012 Nissan Pathfinder Code - EVAP Control System Leak Detected Small Leak

Common Causes of P0442 2012 Nissan Pathfinder

  1. Loose or damaged gas cap
  2. Cracked or loose EVAP system hose
  3. Faulty purge valve
  4. Leak in the charcoal canister
  5. Damaged EVAP canister vent valve

Symptoms of P0442 2012 Nissan Pathfinder

  1. Check engine light is illuminated on the dashboard
  2. Strong smell of gasoline near the vehicle
  3. Decreased fuel efficiency
  4. Failed emissions test
  5. Hissing or whistling noise coming from the fuel tank area

How to Fix P0442 2012 Nissan Pathfinder

  1. Inspect the gas cap and tighten or replace if necessary
  2. Check all EVAP system hoses for cracks or damage and replace as needed
  3. Test the purge valve for proper operation and replace if faulty
  4. Inspect the charcoal canister for leaks and replace if necessary
  5. Clear the code with a diagnostic tool and test drive the vehicle to ensure the issue is resolved

Cost to Fix P0442 2012 Nissan Pathfinder

The cost to repair a P0442 code on a 2012 Nissan Pathfinder can vary depending on the specific cause of the small leak. On average, the parts required for this repair may cost between $100 and $300, while labor costs can range from $100 to $200. This brings the total estimated cost to repair the issue to approximately $200 to $500. However, it's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the repair shop's labor rates. It's recommended to obtain quotes from local auto repair shops for a more accurate cost estimate.

What does this mean?

Tech Notes for P0442 2012 Nissan Pathfinder

The fuel tank filler cap and the Purge Volume Control Valve are the more common problems that will trigger the P0442 code on Nissan vehicles.



There is a factory Nissan service bulletin to help diagnose the P0442 code:

Nissan Factory Service Bulletin OBDII Code P0442

When is the Code Detected?

Malfunction is detected when EVAP control system has a leak, EVAP control system does not operate properly.

Need more information about the P0442 2012 Nissan Pathfinder 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 P0442 2012 Nissan Pathfinder Code

1. What does OBDII code P0442 on a 2012 Nissan Pathfinder indicate?

The OBDII code P0442 for a 2012 Nissan Pathfinder indicates that the EVAP control system has detected a small leak.

2. What are the common symptoms of a P0442 code on a Nissan Pathfinder?

Common symptoms of a P0442 code include the check engine light coming on, a slight decrease in fuel efficiency, and a noticeable fuel odor.

3. What are the possible causes of a P0442 code on a 2012 Nissan Pathfinder?

Potential causes of a P0442 code on a 2012 Nissan Pathfinder include a loose or damaged gas cap, a cracked or leaking EVAP hose, a faulty EVAP canister, or a malfunctioning purge valve.

4. How can I diagnose a P0442 code on my Nissan Pathfinder?

Diagnosing a P0442 code typically involves checking the gas cap for tightness, inspecting the EVAP system for visible damage or leaks, and using a smoke machine to pinpoint the source of the leak.

5. Can I continue driving my Nissan Pathfinder with a P0442 code?

While the vehicle may still be drivable with a P0442 code, it is recommended to address the issue promptly to prevent potential damage to the EVAP system and ensure optimal vehicle performance.

6. How can I repair a P0442 code on my 2012 Nissan Pathfinder?

Repairing a P0442 code may involve tightening or replacing the gas cap, repairing or replacing damaged EVAP hoses, replacing a faulty EVAP canister, or repairing or replacing a malfunctioning purge valve.

7. Are there any DIY tips for fixing a P0442 code on a Nissan Pathfinder?

DIY tips for addressing a P0442 code include checking the gas cap for proper sealing, visually inspecting EVAP hoses for cracks or leaks, and ensuring all EVAP system components are securely connected.

8. How much does it typically cost to repair a P0442 code on a 2012 Nissan Pathfinder?

The cost of repairing a P0442 code on a 2012 Nissan Pathfinder can vary depending on the specific issue, but it may range from around $100 for a simple fix like a gas cap replacement to several hundred dollars for more extensive repairs.

9. Can a P0442 code on a Nissan Pathfinder reset itself after repairs?

After addressing the underlying issue causing the P0442 code, you can clear the code using an OBDII scanner. If the problem has been successfully resolved, the check engine light should not reappear.

10. How important is it to address a P0442 code on a 2012 Nissan Pathfinder?

While a P0442 code may not cause immediate drivability issues, it is important to address it promptly to ensure proper vehicle emissions control, prevent potential damage to the EVAP system, and maintain optimal fuel efficiency.

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