Land Rover Range Rover Sport Smells Like Gas

Common Causes of Fuel Odors in Your Land Rover Range Rover Sport 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
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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 Land Rover Range Rover Sport 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 Land Rover Range Rover Sport 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 Land Rover Range Rover Sport

When addressing a gas smell in your Land Rover Range Rover Sport, begin with the simplest and most common issues. Start by inspecting the gas cap; ensure it is tightly sealed and free from cracks, as a loose or damaged cap can easily lead to fuel vapors escaping. Next, examine the fuel system for any visible leaks, particularly around the fuel rail and injectors, as these areas are prone to issues. If the smell persists, check the emissions control system, including the catalytic converter, which can emit unusual odors if malfunctioning. Additionally, inspect for any signs of burning oil, which may indicate leaks from gaskets or seals that could be contributing to the smell. If you suspect a more complex issue, consider using smoke testing to identify hidden leaks in the fuel lines. Lastly, don’t overlook the battery; a bulging battery can emit a sulfurous smell, so ensure it is in good condition. By systematically checking these components, you can effectively diagnose and resolve the gas smell issue in your vehicle.

What Could Cause a Gas Smell in a Land Rover Range Rover Sport?

When addressing a gas smell in your Land Rover Range Rover Sport, it's important to identify the common problems that may be causing this issue. One frequent source of the odor is decaying seals and o-rings within the fuel system, which can deteriorate over time and lead to fuel leaks. Additionally, a leaking fuel pump is a significant concern that should be addressed immediately to prevent further complications. A faulty gas cap can also contribute to the gas smell, so it's crucial to ensure that it is in good condition and properly sealed. Checking for any manufacturer recalls related to gas smell issues is also advisable, as these can provide valuable insights into potential fixes. Other factors, such as leaks from the fuel tank or problems with the fuel filler neck, may also be responsible for the odor. Promptly addressing these issues not only ensures your safety but also helps maintain the integrity of your vehicle. Regular maintenance checks and timely repairs are essential for effectively resolving gas smell problems in your Range Rover Sport.

What Should You Do If Your Land Rover Range Rover Sport Smells Like Gas?

If you detect a gas smell in your Land Rover Range Rover Sport, it is crucial to act swiftly, as this could indicate a serious fuel leak that poses significant safety risks, including the potential for fire. Ignoring this warning sign can lead to more severe damage to your vehicle and endanger your safety and that of others on the road. Begin by thoroughly inspecting the engine bay and undercarriage for any visible signs of fuel leaks, as gasoline can evaporate quickly, making leaks difficult to spot. If you cannot locate the source of the smell or suspect a leak, it is imperative to seek professional assistance from a qualified mechanic or dealership. They can conduct a comprehensive inspection and perform necessary repairs to mitigate any risks. Additionally, staying informed about any recalls related to your vehicle model can help you address potential issues proactively. Remember, regular maintenance is key to preventing such problems; adhering to a maintenance schedule can help you catch leaks early and ensure your vehicle remains safe and reliable. Taking these steps not only protects your vehicle but also safeguards your well-being on the road.

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