2018 Jaguar E-Pace Smells Like Gas

Diagnosing Fuel Odor Issues in Your 2018 Jaguar E-Pace and Essential Safety Measures to Take

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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
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40% chance it's the
Emissions Control System
0%
45% chance it's
Something else
The most common reasons a 2018 Jaguar E-Pace 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 2018 Jaguar E-Pace 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 are the potential causes and diagnostic steps for a gas smell in a 2018 Jaguar E-Pace?

When you detect a gas smell in your 2018 Jaguar E-Pace, it's essential to approach the diagnosis methodically to identify the root cause effectively. Start by inspecting the fuel system for any visible leaks, paying close attention to fuel lines, injectors, and the fuel tank, as these are common culprits. Next, check the fuel cap to ensure it is securely tightened and free from damage, as a faulty cap can allow gas vapors to escape. If the smell persists, examine the exhaust system for any leaks or damage, which could also contribute to the odor. Utilizing a diagnostic scanner can help you identify any error codes related to the fuel system or emissions components, guiding you toward potential issues. Additionally, inspect the evaporative emissions system, focusing on the charcoal canister and purge valve, as faults in these components can lead to gas smells. Finally, monitor your engine's performance for any signs of misfires or unusual sounds, as these may indicate deeper mechanical problems. By following this structured diagnostic approach, you can effectively troubleshoot the gas smell in your vehicle and take the necessary steps to resolve the issue.

What could be causing a gas smell in my 2018 Jaguar E-Pace?

If you're detecting a gas smell in your 2018 Jaguar E-Pace, it's crucial to understand the common problems that could be at play. One of the primary culprits is a fuel leak, which can stem from damaged fuel lines, faulty fuel injectors, or issues with the fuel tank itself. This not only poses a safety risk but can also lead to significant vehicle damage if left unaddressed. Another frequent cause is a faulty fuel cap; if it's loose, damaged, or missing, it can fail to seal properly, allowing fuel vapors to escape and create an odor inside the cabin. Additionally, problems with the evaporative emissions system, such as a malfunctioning charcoal canister or purge valve, can lead to similar gas smells due to improper vapor recirculation. It's also worth considering the exhaust system; a leak near the engine compartment can introduce exhaust fumes into the vehicle, mimicking a gas smell. Lastly, overfilling the fuel tank can cause fuel to spill, resulting in a noticeable odor. For those inclined to DIY, inspecting these areas can help identify the source of the smell, but it's advisable to consult a qualified mechanic for a thorough diagnosis and repair to ensure safety and vehicle integrity.

How urgent is it to address the gas smell in my 2018 Jaguar E-Pace?

Addressing a gas smell in your 2018 Jaguar E-Pace is not just a matter of convenience; it is an urgent safety concern that should be prioritized. Gas leaks pose a significant risk of fire or explosion, particularly in the confined space of a vehicle, making immediate action essential. Additionally, inhaling gas fumes 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 components, leading to more extensive and expensive repairs down the line. Therefore, if you detect a gas smell, it is crucial to investigate and resolve the issue promptly to safeguard your health, ensure your safety, and maintain the integrity of your Jaguar E-Pace.

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