2013 Nissan Xterra Smells Like Gas

Common Causes of Gas Smells in Your 2013 Nissan Xterra and Essential Safety Precautions

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
15% chance it's the
Gas Cap
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40% chance it's the
Emissions Control System
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45% chance it's
Something else
The most common reasons a 2013 Nissan Xterra smells like gas are the gas cap, the fuel system, or the emissions control system.
  • Gas Cap: A loose or damaged gas cap can cause fuel vapors to escape, triggering the check engine light and potentially affecting fuel system pressure.
  • Emissions Control System: A faulty emissions control system can lead to increased hydrocarbon emissions and trigger the check engine light due to malfunctioning components like the EGR valve or O2 sensors.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2013 Nissan Xterra smells like gas?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

A failing catalytic converter can cause a vehicle to fail emissions tests and turn on the check engine light. The exhaust might have an unusual smell. A restricted catalytic converter can result in a loss of engine power.

» LEARN MORE: How to tell if your catalytic converter is failing

The check engine light will illuminate any time there is a failed EVAP system test. This will be indicated by the various on-board diagnostics trouble codes that are stored in the vehicle's memory. Also, in some models, there may be a popping sound accompanying the check engine light, as the leak detection pump continuously attempts to pressurize the fuel tank. The canister may also cause difficulty starting the engine, a rough idle, and poor fuel mileage.

The check engine light will illuminate any time there is a failed EVAP system test. This will be indicated by the various on-board diagnostics trouble codes that are stored in the vehicle's memory. Also, in some models, there may be a popping sound accompanying the check engine light, as the leak detection pump continuously attempts to pressurize the fuel tank. A fuel tank leak may also cause difficulty starting the engine, a rough idle, and poor fuel mileage. When a fuel tank is simply corroded to the point of failure, the exterior tank condition rarely shows damage. The inside of the fuel tank will be rusted or corroded, and rust flakes or other debris may be floating in the fuel.

For most vehicles, the only symptom will be a check engine light or fuel tank filler cap light illuminating on the driver instrument cluster. This is to signal that there is an evaporative emissions (EVAP) leak. In some situations, the vehicle may take longer than normal to start, or, more rarely, the engine may not start at all. on-board diagnostic (OBD) trouble codes will refer to EVAP system failures such as a small or massive EVAP system leak. Lastly, the powertrain control module may notice a lean running condition, which could even lead to random and infrequent misfires.

What are the potential causes for a gas smell in a 2013 Nissan Xterra, and how should I diagnose them?

When diagnosing a gas smell in your 2013 Nissan Xterra, it's crucial to take a methodical approach that begins with the most straightforward checks. Start by examining the fuel system for any visible leaks, paying close attention to the fuel lines, injectors, and tank for any signs of damage or wear. A loose or damaged gas cap is another common culprit that can allow fuel vapors to escape, so ensure it is securely fastened and in good condition. If these initial inspections do not reveal the source of the odor, turn your attention to the fuel injectors, as a malfunctioning injector can contribute to the smell. Additionally, the evaporative emissions control system, particularly the charcoal canister and purge valve, should be assessed, as failures in this system can also lead to gas odors. Finally, inspect the exhaust system for any leaks or damage, as these issues can sometimes produce a gas-like smell. If you are still unable to identify the problem after these checks, it may be wise to consult a professional mechanic who can use specialized tools to accurately diagnose the issue. By following this structured diagnostic approach, you can effectively identify and resolve the cause of the gas smell in your vehicle.

What are the common causes of a gas smell in a 2013 Nissan Xterra?

When you detect a gas smell in your 2013 Nissan Xterra, it's crucial to identify the underlying issues to ensure both safety and vehicle performance. One of the most common culprits is a fuel leak, which can occur from damaged fuel lines or faulty fuel injectors, leading to a noticeable odor both inside and outside the vehicle. Additionally, problems with the evaporative emissions system, designed to manage fuel vapor release, can also contribute to this issue. A simple yet often overlooked cause is a faulty fuel cap; if it's loose, damaged, or not sealed properly, it can allow fuel vapors to escape. Furthermore, an exhaust system leak, particularly from components like the exhaust manifold or catalytic converter, may produce a gas-like smell within the cabin. Lastly, engine performance issues, such as running too rich due to excess fuel or problems with the fuel injection system, can also lead to a gas odor. Addressing these issues promptly is essential, and while some may be manageable through DIY methods, consulting a qualified mechanic for persistent problems is always a wise choice.

How urgent is it to address the gas smell in my 2013 Nissan Xterra?

Addressing a gas smell in your 2013 Nissan Xterra is not just a minor inconvenience; it is a critical safety concern that demands immediate attention. Ignoring this issue can lead to severe consequences, including the risk of fire due to gasoline leaks, which can ignite and cause catastrophic damage to both you and your vehicle. Furthermore, inhaling gasoline fumes poses significant health risks, leading to symptoms such as dizziness, headaches, and nausea, which can escalate to more serious health problems with prolonged exposure. Additionally, gasoline leaks can have detrimental effects on the environment, contaminating soil and water sources, which can have long-lasting repercussions. Therefore, it is essential to act swiftly when you detect a gas smell in your Xterra, not only to protect your health and safety but also to prevent potential environmental harm. Taking prompt action can save you from costly repairs and ensure a safer driving experience.

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2013 Nissan Xterra Gas Smell: Causes & Repairs | RepairPal