2015 Jeep Compass Smells Like Gas

Identifying the Causes of Gas Smells in Your 2015 Jeep Compass and Essential Safety Measures

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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
0%
40% chance it's the
Emissions Control System
0%
45% chance it's
Something else
The most common reasons a 2015 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 2015 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.

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.

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 2015 Jeep Compass?

To effectively diagnose the gas smell in your 2015 Jeep Compass, start with a systematic approach that prioritizes simpler checks before moving on to more complex diagnostics. Begin by inspecting the fuel system for any visible leaks, as these can often be the most straightforward source of the odor. Pay particular attention to the area beneath the vehicle and around the engine, where leaks are most likely to occur. Next, ensure that the gas cap is securely fastened and in good condition, as a faulty cap can lead to fuel vapors escaping. After running the engine, take a moment to assess the air around the vehicle for any strong gasoline odors, which may indicate a more serious fuel-related issue. Additionally, examine the engine compartment for any signs of gasoline spills or leaks, as these can also contribute to the smell. Don’t overlook the coolant system; a burning smell might suggest issues beyond fuel, such as oil or coolant leaks. If these initial checks do not reveal the source of the gas smell, or if you suspect a more complex problem, it’s wise to consult a qualified mechanic for a thorough inspection. This methodical approach will help you identify and address the underlying issues effectively.

What could be causing my 2015 Jeep Compass to smell like gas?

If your 2015 Jeep Compass is emitting a gas smell, it’s crucial to investigate the underlying causes to ensure your safety and the vehicle's performance. One of the most common culprits is a loose or faulty gas cap, which can lead to fuel vapors escaping. Additionally, issues within the fuel system, such as leaks in the fuel lines or a malfunctioning fuel injector, can also produce a noticeable gas odor. Another area to consider is the emissions control system; a failing catalytic converter may emit a gas-like smell, indicating a need for inspection. Furthermore, a strong exhaust smell could suggest a leak in the exhaust system, such as a damaged exhaust pipe or muffler. Lastly, be aware that any fluids leaking onto hot engine components can create a burning smell that might be mistaken for gas. If you’re not able to pinpoint the source of the smell, it’s wise to consult a professional mechanic who can provide a thorough diagnosis and ensure your Jeep Compass remains safe to drive.

How urgent is it to address the gas smell in my 2015 Jeep Compass?

Addressing a gas smell in your 2015 Jeep Compass is of utmost urgency due to the serious safety hazards it presents. Gas leaks not only increase the risk of fire or explosion, particularly in the confined space of a vehicle, but they also pose significant health risks. Prolonged exposure to gasoline fumes can lead to symptoms such as dizziness, headaches, and nausea, which can escalate into more severe health issues. Furthermore, ignoring the smell can result in further damage to the fuel system, leading to expensive repairs down the line. Therefore, it is crucial to take immediate action by seeking professional assistance to diagnose and resolve the issue, ensuring both your safety and the longevity of your vehicle.

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