2019 Fiat 124 Spider Smells Like Gas

Common Causes of Fuel Odors in Your 2019 Fiat 124 Spider and How to Address Them Safely

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Reviewed by
Devin Cabugcal
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 2019 Fiat 124 Spider 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 2019 Fiat 124 Spider 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 2019 Fiat 124 Spider?

To effectively diagnose the gas smell in your 2019 Fiat 124 Spider, start with a thorough visual inspection of your vehicle. Begin by checking for any visible leaks around the car, as puddles or wet spots can indicate a gasoline leak. Next, inspect the fuel lines and connections for any signs of damage or looseness, as these are common culprits for gas odors. Don’t forget to examine the fuel tank for cracks or holes that could be contributing to the smell. Additionally, a faulty fuel injector may also be responsible, so consider having it checked if you suspect an issue. Ensure that the fuel cap is tightly sealed after refueling, as a loose or damaged cap can allow gas vapors to escape. It’s also wise to look into the evaporative emissions control system, as problems here can lead to gas smells as well. If you’re unable to pinpoint the source of the odor or if the issue seems more complex, consulting a qualified mechanic for a professional diagnosis is recommended. By following this diagnostic approach, you can systematically identify and address the source of the gas smell in your Fiat, ensuring a safer driving experience.

What could be causing a gas smell in my 2019 Fiat 124 Spider?

If you're detecting a gas smell in your 2019 Fiat 124 Spider, it's crucial to identify the underlying cause to ensure both safety and vehicle performance. One of the most common culprits is a fuel leak, which can stem from damaged fuel lines, faulty fuel injectors, or issues with the fuel tank itself. Additionally, a loose gas cap can lead to fuel vapors escaping, so it's wise to check that it is securely fastened after refueling. Another potential source of the odor could be a malfunction in the evaporative emissions system, designed to manage fuel vapors; if this system is compromised, it can result in noticeable gas smells inside the cabin. Furthermore, an exhaust system leak, particularly near the engine compartment, may also produce a gas-like odor. Lastly, overfilling the gas tank can cause fuel to spill, leading to lingering fumes. If you encounter this issue, it's advisable to conduct a thorough inspection or consult a qualified mechanic to accurately diagnose and rectify the problem, ensuring your vehicle remains safe and functional.

How urgent is it to address the gas smell in my 2019 Fiat 124 Spider?

Addressing a gas smell in your 2019 Fiat 124 Spider is not just a matter of convenience; it is an urgent safety concern that should not be overlooked. The presence of gas fumes can indicate a leak, which poses a significant fire hazard and increases the risk of explosion. This makes immediate action essential to protect yourself and others. Additionally, inhaling gas vapors can lead to serious health issues, including dizziness, headaches, and nausea, which can escalate with prolonged exposure. Beyond the immediate dangers, neglecting this issue can result in further damage to your vehicle's fuel system, leading to costly repairs down the line. Therefore, if you detect a gas smell, it is imperative to investigate and resolve the issue promptly to ensure your safety, maintain your health, and preserve the integrity of your Fiat 124 Spider.

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