2020 Jeep Compass Smells Like Gas

Identifying the Causes of Gas Smells in Your 2020 Jeep Compass and Essential Safety Measures

Find Repair Location
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 Jeep Compass 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 Jeep Compass 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.

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 and diagnostic steps for a gas smell in a 2020 Jeep Compass?

When you notice a gas smell in your 2020 Jeep Compass, it's essential to diagnose the issue carefully to maintain safety and vehicle integrity. Begin by inspecting the area under the vehicle for any visible fuel leaks, as this is often the most straightforward problem to identify. Look closely at the fuel lines and connections for any signs of dripping or pooling fuel. If no leaks are apparent, turn your attention to the fuel injectors, as a malfunctioning injector can lead to fuel leakage and odors. Utilizing a diagnostic scanner can also be beneficial; it allows you to check for error codes that may point to issues within the fuel system or the evaporative emissions system. Additionally, ensure that the gas cap is securely fastened and in good condition, as a loose or damaged cap can release fuel vapors into the atmosphere. Lastly, inspect the exhaust system for any leaks, as these can sometimes mimic a gas smell. By following this structured diagnostic approach, you can effectively pinpoint the source of the gas odor and take the necessary steps to resolve it, ensuring your Jeep Compass remains safe and reliable on the road.

What could be causing a gas smell in my 2020 Jeep Compass?

If you're detecting a gas smell in your 2020 Jeep Compass, it's crucial to understand the common problems that could be at play. One of the primary culprits is a fuel leak, which can occur in various parts of the fuel system, including fuel injectors, lines, or the fuel tank itself. A faulty fuel cap is another frequent issue; if it's loose, damaged, or missing, it can allow fuel vapors to escape, creating a noticeable odor. Additionally, problems with the evaporative emissions system, designed to contain fuel vapors, can lead to gas smells inside the cabin. It's also worth considering the exhaust system; leaks in components like the catalytic converter or muffler can sometimes produce a gas-like scent. Lastly, engine issues, such as running too rich, can contribute to the problem. For those inclined to DIY, start by inspecting the fuel cap and checking for visible leaks in the fuel system. If the issue persists, further investigation into the evaporative emissions system and exhaust components may be necessary. Always prioritize safety and consider consulting a professional mechanic if you're unsure about any findings.

How urgent is it to address the gas smell in my 2020 Jeep Compass?

When you detect a gas smell in your 2020 Jeep Compass, it is essential to act swiftly due to the serious safety risks involved. Gasoline leaks not only pose a significant fire hazard but can also lead to harmful health effects from inhaling toxic fumes. If you notice this odor, the first step is to ensure your vehicle is parked in a well-ventilated area away from any potential ignition sources. Inspect the fuel lines and connections for any visible signs of leaks, such as wet spots or corrosion. If you are comfortable doing so, you can also check the fuel tank and the area around the fuel injectors. However, if you are unable to identify the source of the smell or if the issue seems severe, it is crucial to seek professional assistance immediately. Ignoring this warning sign could lead to more extensive damage to your vehicle and pose serious risks to your safety and health. Taking prompt action not only protects you but also ensures the longevity of your Jeep Compass.

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.