Honda Pilot Smells Like Gas

Common Causes of Fuel Odors in Your Honda Pilot and Essential Safety Measures to Take

Find Repair Location
Reviewed by
Bo Fader
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 Honda Pilot 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 Honda Pilot 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 Honda Pilot

When troubleshooting a gas smell in your Honda Pilot, start with a careful visual inspection of the vehicle. Check for any obvious signs of fuel leaks around the fuel tank, fuel lines, and engine components. Look for wet spots or stains that could indicate a leak. If you recently filled up, ensure that the gas cap is securely tightened, as a loose cap can lead to fuel vapors escaping. Next, examine the fuel injectors and high-pressure gas pump for any signs of wear or damage, as these components can contribute to a raw gas smell if they are malfunctioning. If the smell intensifies when the engine is hot, it may be beneficial to inspect the engine bay for any exhaust leaks or issues with the HVAC system that could be circulating fumes into the cabin. Always prioritize safety by working in a well-ventilated area and considering the use of protective gear. If the source of the smell remains elusive or if you identify a significant leak, it is advisable to consult a qualified technician for a comprehensive diagnosis and repair.

What Could Cause a Gas Smell in a Honda Pilot?

A gas smell in your Honda Pilot can be alarming and may stem from several common issues that are often manageable with some basic DIY knowledge. One of the first things to check is the gas cap; a loose or damaged cap can easily allow gasoline vapors to escape, creating a noticeable odor inside the vehicle. If the gas cap appears to be in good condition, the next area to investigate is the fuel system itself. Look for any signs of leaks, as even a small crack in a fuel line can lead to significant fumes. Additionally, the emissions control system plays a crucial role in managing gas odors; leaks in the evaporative emissions system or a malfunctioning catalytic converter can also be culprits. Overfilling the gas tank is another common mistake that can lead to spills and subsequent smells, so be mindful of how much fuel you add. Lastly, consider other potential sources such as faulty fuel injectors or issues with the high-pressure gas pump. Addressing these problems promptly is essential not only for your comfort but also for your safety, as gasoline fumes can pose serious health risks. Regular maintenance checks, including ensuring the gas cap is secure and inspecting for leaks, can help prevent these issues from arising in the first place. If the smell persists despite your efforts, consulting a qualified mechanic is advisable to ensure a thorough diagnosis and resolution.

What to Do If Your Honda Pilot Smells Like Gas?

If your Honda Pilot emits a gas smell, it’s crucial to act swiftly, as neglecting this issue can lead to serious safety hazards and costly repairs. A gas odor may indicate a fuel leak, which not only poses a fire risk but can also affect the vehicle's performance and efficiency. Start by checking the gas cap to ensure it is securely tightened, as a loose cap can often be the culprit. Next, inspect the fuel system for any visible leaks, including the fuel lines and injectors, as these components are vital for safe operation. Additionally, consider the emissions control system, which is designed to manage fuel vapors; a malfunction here could exacerbate the problem. If you cannot identify the source of the smell or if it persists, it’s advisable to consult a mechanic. Professional inspection is essential to pinpoint the issue accurately and to ensure your vehicle remains safe to drive. Remember, addressing these symptoms promptly not only protects your safety but also helps maintain the integrity of your Honda Pilot.

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.

Why Your Honda Pilot Smells Like Gas: Causes & Solutions