2020 Kia Soul Smells Like Gas

Common Causes of Fuel Odors in Your 2020 Kia Soul and How to Address Them Safely

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Reviewed by
Aisha
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 2020 Kia Soul 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 2020 Kia Soul 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 are the potential causes of a gas smell in a 2020 Kia Soul, and how should I diagnose the issue?

When faced with a gas smell in your 2020 Kia Soul, it's essential to adopt a systematic diagnostic approach to identify the root cause effectively. Start by inspecting the vehicle for any visible fuel leaks, particularly around the fuel lines and tank, as these are often the most straightforward issues to detect. Next, check the fuel cap to ensure it is securely fastened and free from damage, as a loose cap can easily allow gas vapors to escape. If these initial checks do not reveal the problem, consider examining the evaporative emissions system, which includes components like the charcoal canister and purge valve; malfunctions here can lead to noticeable gas odors. Additionally, inspect the exhaust system for leaks or damage, as these can also contribute to the smell. If the issue persists, using an OBD-II scanner to check for error codes related to the fuel system can provide further insights. Should these steps not yield a solution, consulting a qualified mechanic is advisable for a comprehensive diagnosis. By following this structured approach, you can efficiently narrow down the potential causes of the gas smell and take appropriate action.

What could be causing my 2020 Kia Soul to smell like gas?

If you're noticing a gas smell in your 2020 Kia Soul, it's essential to understand the common problems that could be causing this issue. One of the most serious concerns is a fuel leak, which can stem from various components such as fuel injectors, fuel lines, or even the fuel tank itself. This not only poses a safety risk but also requires immediate attention to prevent potential fire hazards. Another possibility is a faulty fuel cap; if it's loose, damaged, or missing, it can allow fuel vapors to escape, leading to that unmistakable gas odor. Additionally, issues with the evaporative emissions system, which is responsible for capturing and recirculating fuel vapors, may also be at play, particularly if components like the charcoal canister or purge valve are malfunctioning. Furthermore, a leak in the exhaust system, such as a cracked manifold or damaged catalytic converter, can sometimes produce a gas-like smell inside the cabin. Lastly, overfilling your gas tank can lead to fuel spillage, contributing to the odor. Given the range of potential causes, it's advisable to have your vehicle inspected by a qualified mechanic to ensure your safety and the proper functioning of your Kia Soul.

How urgent is it to address a gas smell in a 2020 Kia Soul?

Addressing a gas smell in your 2020 Kia Soul is not just a matter of inconvenience; it is a pressing safety concern that requires immediate attention. Ignoring the smell can lead to severe consequences, including the risk of fire or explosion due to gas leaks. Additionally, the inhalation of gasoline fumes poses significant health risks, potentially causing symptoms like dizziness, nausea, and headaches, which can escalate to more serious health issues with prolonged exposure. A gasoline odor often indicates a leak in the fuel system, which can compromise the vehicle's performance and safety. Therefore, if you detect a gas smell, it is crucial to act swiftly by consulting a qualified mechanic to diagnose and resolve the issue, ensuring both your safety and the reliable operation of your vehicle.

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