2022 Buick Enclave Smells Like Gas

Troubleshooting Gas Smells in Your 2022 Buick Enclave: Causes and Solutions for a Safe Drive

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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
0%
45% chance it's
Something else
The most common reasons a 2022 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 2022 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 steps should I take to diagnose the gas smell in my 2022 Buick Enclave?

When diagnosing a gas smell in your 2022 Buick Enclave, it's essential to adopt a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by visually inspecting the area beneath your vehicle for any obvious signs of gasoline leaks, such as dripping fuel or wet spots around the fuel tank and lines. Next, ensure that the fuel cap is securely tightened, as a loose or damaged cap can easily allow gas odors to escape. Following this, examine the fuel lines for any visible cracks or damage, as these can be a common source of leaks. Don’t overlook the fuel injector O-rings; worn or damaged O-rings can also lead to gas leaks and should be inspected closely. Additionally, check the fuel tank for any signs of corrosion or damage, which could contribute to the smell. If these initial checks do not reveal the source of the odor, it may be time to consult a qualified mechanic for a more thorough inspection. By following this diagnostic approach, you can effectively identify and address the cause of the gas smell in your vehicle.

What could be causing a gas smell in a 2022 Buick Enclave?

If you're detecting a gas smell in your 2022 Buick Enclave, it's crucial to investigate the underlying causes to ensure both safety and vehicle performance. One of the most common culprits is a fuel leak, which can stem from damaged fuel lines, faulty fuel injectors, or issues with the fuel tank itself. Additionally, a loose gas cap can lead to fuel vapors escaping, so always check that it is securely tightened after refueling. Another potential source of the odor could be a malfunction in the evaporative emissions system, which manages fuel vapors and includes components like the charcoal canister and purge valve. Furthermore, an exhaust system leak, such as a cracked manifold or damaged catalytic converter, may allow gas odors to infiltrate the cabin. Lastly, an engine misfire can result in unburned fuel entering the exhaust, contributing to the smell. If you notice a gas odor, it's advisable to conduct a thorough inspection or consult a professional mechanic to pinpoint and rectify the issue promptly.

How urgent is it to address a gas smell in a 2022 Buick Enclave?

Addressing a gas smell in your 2022 Buick Enclave is not just a matter of inconvenience; it is an urgent safety concern that should never be overlooked. Gas leaks pose a significant risk of fire or explosion, especially in the confined space of a vehicle, making immediate action essential. Additionally, inhaling gas fumes can lead to serious health issues, including dizziness and nausea, which can impair your ability to drive safely. Beyond the immediate health and safety risks, neglecting a gas smell can result in further damage to your vehicle, leading to costly repairs down the line. Therefore, if you notice a gas odor, it is crucial to seek professional assistance right away to identify and rectify the source of the problem, ensuring both your safety and the longevity of your vehicle.

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