2013 Buick Enclave Smells Like Gas

Identifying Potential Causes of Gas Smells in Your 2013 Buick Enclave and Essential Safety Measures

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Reviewed by
Andrew Hajjar
Written by RepairPal Car Genius
Updated January 14, 2025
0%
15% chance it's the
Gas Cap
0%
40% chance it's the
Emissions Control System
0%
45% chance it's
Something else
The most common reasons a 2013 Buick Enclave 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 Buick Enclave 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 could be causing my 2013 Buick Enclave to smell like gas, and how should I diagnose the issue?

When faced with a gas smell in your 2013 Buick Enclave, it's essential to adopt a systematic diagnostic approach to identify the root cause effectively. Start by visually inspecting the vehicle for any obvious signs of a fuel leak, particularly under the car near the fuel tank and lines. If you notice wet spots or puddles, this could indicate a fuel leak that needs immediate attention. Next, listen for any unusual sounds from the engine, such as clicking noises, which may suggest a faulty fuel injector. Pay attention to the vehicle's performance; symptoms like rough idling or decreased fuel efficiency can also point to injector issues. Additionally, examine the evaporative emissions system components, including the gas cap and charcoal canister, as malfunctions here can lead to gas odors. Don't overlook the exhaust system; a leak can sometimes mimic a gas smell, so check for any visible damage or loose connections. Lastly, ensure that you haven't overfilled the gas tank, as this can cause fuel to spill and create a noticeable odor. By following this structured approach, you can effectively narrow down the potential causes and take appropriate action to resolve the issue. If the source remains elusive, consider using an OBD-II scanner to check for error codes or consult a professional mechanic for a comprehensive diagnosis.

What could be causing my 2013 Buick Enclave to smell like gas?

If your 2013 Buick Enclave has developed a gas smell, it's essential to investigate several common problems that could be the source. One of the first areas to check is the gas cap; a loose or damaged cap can lead to fuel vapors escaping, creating a noticeable odor. Additionally, inspect the fuel system for leaks, as any cracks or worn hoses can allow gasoline to escape and produce a strong smell. The emissions control system is another critical component to consider; issues here can lead to improper venting of fuel vapors. If your vehicle is sputtering or showing signs of performance issues, it may indicate problems with the ignition system or the mass airflow (MAF) sensor, which can also contribute to a gas smell. Lastly, a failing catalytic converter can emit a gas-like odor, especially if it is in the process of burning off residue from a recent replacement. By systematically checking these areas, you can identify the source of the gas smell and take appropriate action to resolve the issue.

How urgent is it to address a gas smell in a 2013 Buick Enclave?

Addressing a gas smell in your 2013 Buick Enclave is not just a matter of convenience; it is a critical safety concern that requires immediate attention. Ignoring the smell of gas can lead to severe consequences, including the risk of fire, which poses a significant threat to both the vehicle and its occupants. Additionally, prolonged exposure to gas fumes can adversely affect your health, leading to symptoms like dizziness and nausea. Beyond safety and health risks, a gas leak can also compromise your vehicle's performance, resulting in decreased fuel efficiency and potential engine damage over time. Therefore, if you detect a gas smell, it is essential to investigate the source promptly. This may involve checking for leaks in the fuel lines, inspecting the fuel tank, or examining the engine components. Taking swift action not only ensures your safety but also helps maintain the integrity and longevity of your vehicle.

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