2012 Kia Soul Smells Like Gas

Identifying Potential Causes of Gas Smells in Your 2012 Kia Soul and Essential Safety Measures

Find Repair Location
Reviewed by
Bo Fader
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 2012 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 efficiency.
  • 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 2012 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.

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.

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 could be causing the gas smell in my 2012 Kia Soul, and how should I diagnose it?

When faced with a gas smell in your 2012 Kia Soul, it's essential to adopt a systematic diagnostic approach to identify the source of the issue. Start by inspecting the gas cap, as a loose or damaged cap is a common and easily fixable cause of gas odors. Ensure it is securely fastened and in good condition. Next, check for any visible fuel leaks beneath your vehicle, particularly after refueling or driving; the presence of fuel on the ground is a clear indicator that further investigation is needed. If the smell resembles ether or has a medical scent, consider examining your air conditioning system for potential leaks or bacterial growth, which can also contribute to unusual odors. If these initial checks do not reveal the problem, or if you suspect a more serious issue such as a leaking fuel line or tank, it is prudent to seek a professional inspection. By following this methodical approach, you can effectively diagnose the gas smell in your Kia Soul, ensuring both your safety and the vehicle's performance.

What could be causing my 2012 Kia Soul to smell like gas?

If your 2012 Kia Soul is emitting a gas smell, it's essential to investigate the issue thoroughly, as it can stem from several common problems. One of the primary culprits could be a malfunctioning fuel system, which may include issues such as a leaking fuel injector or a damaged fuel line. Additionally, a faulty gas cap can allow fuel vapors to escape, leading to that unmistakable odor. It's also crucial to check for any gasoline leaks, as these not only create a strong smell but also pose a significant fire hazard. If your check engine light is on, it may indicate a problem with the catalytic converter, which could also contribute to the gas smell. Lastly, consider the possibility of a leak in the air conditioning system, particularly if the odor seems more chemical than fuel-related. Addressing these issues promptly is vital for your safety and the vehicle's performance, so if you're unable to pinpoint the source, seeking help from a qualified mechanic is advisable.

How urgent is it to address a gas smell in a 2012 Kia Soul?

When you detect a gas smell in your 2012 Kia Soul, it is crucial to act swiftly due to the serious safety risks involved. Gasoline fumes are not only toxic but can also lead to carbon monoxide poisoning, which poses a significant health threat. Additionally, a gas smell often indicates a gasoline leak, creating a fire hazard that could endanger you and others. Ignoring this warning sign may lead to more severe mechanical issues, resulting in costly repairs and compromising the safety of your vehicle. Therefore, it is essential to assess the situation immediately, either by conducting a thorough inspection yourself or seeking professional help, to identify the source of the odor and address it before it escalates into a more dangerous problem. Prioritizing this issue will ensure your safety and the longevity of your Kia Soul.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.