Kia Sorento Smells Like Gas

Common Causes of Fuel Odors in Your Kia Sorento and Essential Safety Measures to Take

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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
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45% chance it's
Something else
The most common reasons a Kia Sorento 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 Kia Sorento 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.

Troubleshooting Gas Smell in a Kia Sorento

When faced with a gas smell in your Kia Sorento, it's essential to adopt a systematic diagnostic approach to identify and resolve the issue safely. Begin by checking the gas cap, as a loose or damaged cap can often be the culprit behind fuel vapor leaks. If the cap appears secure, inspect the vehicle for any visible signs of fuel leaks, particularly around the engine bay and undercarriage, as these areas are common sources of hidden leaks. If you still cannot pinpoint the source of the odor, consider consulting a trusted mechanic for a professional assessment. Remember to prioritize safety; if you detect a strong gas smell or see fuel pooling under the vehicle, ventilate the area and seek assistance immediately. By methodically addressing these potential issues, you can ensure the safety and reliability of your Kia Sorento while effectively managing any gas smell concerns.

What Could Cause a Gas Smell in a Kia Sorento?

When you detect a gas smell in your Kia Sorento, it’s essential to investigate the issue thoroughly, as it can stem from several common problems. One of the first areas to check is the gas cap; a worn or improperly sealed cap can allow fuel vapors to escape, creating a noticeable odor. Additionally, inspect the fuel system for leaks, which can occur in various components such as fuel lines or injectors. A failing catalytic converter may also contribute to the smell, as it can disrupt the vehicle's emissions control and lead to unusual odors. Ignoring these signs can pose serious safety risks, including the potential for fire or explosion, making it crucial to address any gas smell immediately. By understanding these common issues, you can take proactive steps to ensure your vehicle remains safe and functional.

What to Do If Your Kia Sorento Smells Like Gas?

If you notice a gas smell in your Kia Sorento, it is crucial to act quickly, as neglecting this issue can lead to serious safety risks, including the potential for fire or explosion. Start by identifying the source of the odor; it could stem from a fuel leak, a damaged gas cap, or other mechanical problems. Inspect your vehicle for any visible signs of fuel leaks, such as dripping or pooling under the car, as these can pose immediate hazards. Additionally, check the condition of your gas cap, as a worn or damaged seal can allow fuel vapors to escape, contributing to the smell. If the odor is strong inside the vehicle, ensure proper ventilation by opening windows or moving to a well-ventilated area to reduce inhalation of harmful fumes. If you are unable to pinpoint the issue or if the smell persists, it is essential to seek professional assistance from a qualified mechanic. Promptly addressing a gas smell not only protects your safety but also prevents further damage to your vehicle, making it a critical step in responsible vehicle maintenance.

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