2023 Hyundai Santa Fe Smells Like Gas

Common Causes of Fuel Odors in Your 2023 Hyundai Santa Fe and Essential Safety Measures to Take

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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
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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 2023 Hyundai Santa Fe 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 2023 Hyundai Santa Fe 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.

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.

When the fuel filter begins to clog, the engine suffers from fuel starvation. This will cause a significant reduction in power and may also cause a misfire. These conditions may be intermittent, or constant and worsen over time. As the issue progresses, the engine may being to stall immediately after starting, fail to start, hesitate under throttle, or stall at particular angles on hills.

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 2023 Hyundai Santa Fe?

To effectively diagnose the gas smell in your 2023 Hyundai Santa Fe, start with a thorough visual inspection of the vehicle. Begin by checking for any visible leaks beneath the car, particularly around the fuel tank and fuel lines, as these areas are common sources of gasoline odors. Next, ensure that the fuel cap is securely tightened, as a loose or damaged cap can allow gas vapors to escape. After that, inspect the fuel lines for any signs of cracks or damage, which could lead to leaks. Pay close attention to the fuel injectors as well, as faulty injectors can contribute to gas smells both inside and outside the vehicle. Additionally, examine the fuel tank for any signs of wear or leaks. If these initial checks do not reveal the source of the odor, it may be time to consult a qualified mechanic who can conduct a more comprehensive inspection. By following this diagnostic approach, you can systematically identify and address the cause of the gas smell in your vehicle, ensuring a safer driving experience.

What could cause a gas smell in a 2023 Hyundai Santa Fe?

If you notice a gas smell in your 2023 Hyundai Santa Fe, it’s crucial to identify the underlying cause to ensure your safety and the vehicle's performance. One common issue could be a fuel leak, which may stem from a damaged fuel line, a malfunctioning fuel injector, or even a compromised fuel tank. Additionally, problems with the evaporative emissions system, designed to manage fuel vapors, can also lead to noticeable gas odors. Another potential culprit is a faulty fuel cap; if it’s loose, damaged, or missing, it can allow fuel vapors to escape, creating a gas smell inside the cabin. Furthermore, an exhaust system leak, such as a crack in the exhaust manifold or a damaged catalytic converter, might produce a gas-like odor. Lastly, engine performance issues, particularly if the engine is running too rich, can contribute to this problem. Addressing these issues promptly is essential, and consulting a qualified mechanic for a thorough inspection is highly recommended to diagnose and resolve the source of the gas smell effectively.

How urgent is it to address the gas smell in my 2023 Hyundai Santa Fe?

Addressing a gas smell in your 2023 Hyundai Santa Fe is not just a minor inconvenience; it is a critical safety concern that demands immediate attention. The presence of gasoline fumes can indicate a fuel leak, which poses a significant fire hazard and increases the risk of explosion. Moreover, inhaling these fumes can lead to serious health issues, including dizziness, headaches, and respiratory problems. Ignoring this warning sign can also result in further damage to your vehicle, leading to more extensive and costly repairs down the line. Therefore, if you detect a gas smell, it is essential to act swiftly—either by inspecting the vehicle yourself or seeking professional assistance—to ensure your safety and maintain the integrity of your car.

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