2001 Ford Explorer Sport Trac Smells Like Gas

Diagnosing Fuel Smell Issues in Your 2001 Ford Explorer Sport Trac 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 2001 Ford Explorer Sport Trac 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 2001 Ford Explorer Sport Trac 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.

What are the potential causes of a gas smell in a 2001 Ford Explorer Sport Trac, and how should I diagnose the issue?

When diagnosing a gas smell in your 2001 Ford Explorer Sport Trac, it's essential to adopt a systematic approach that prioritizes safety and efficiency. Start by inspecting the gas cap, as a loose or damaged cap can easily lead to fuel vapors escaping. If the cap appears intact, move on to check for any visible fuel leaks in the engine bay or undercarriage, as these can pose serious fire hazards. Next, examine the fuel lines for any signs of blockage or leaks, which could indicate pressure issues within the fuel system. It's also important to differentiate between the smell of gasoline and exhaust fumes; ensure that the exhaust system is functioning correctly and that there are no leaks. Finally, consider pressurizing the fuel lines to detect any hidden leaks in the fuel tank or associated components. By following this diagnostic approach, you can effectively identify the source of the gas smell and take the necessary steps to resolve the issue.

What could be causing the gas smell in my 2001 Ford Explorer Sport Trac?

If you're dealing with a gas smell in your 2001 Ford Explorer Sport Trac, understanding the common problems that could be causing this issue is crucial for effective troubleshooting. Start by examining the gas cap, as a loose or damaged cap can easily allow fuel vapors to escape, resulting in a noticeable odor. Next, inspect the fuel system for any leaks or malfunctions, as these can significantly contribute to the gas smell. It's also important to check the emissions control system; a failing catalytic converter can lead to gas odors as well. Additionally, the fuel vapor purge valve, which manages fuel vapors, may be faulty and could cause both gas smells and difficulties when starting the vehicle. Pay special attention to specific areas around your vehicle, such as near the gas tank fill or wheel well, where localized issues may arise. While some of these problems can be addressed through DIY methods, consulting a professional mechanic for a thorough inspection is advisable to ensure your vehicle's safety and reliability.

How urgent is it to address the gas smell in my 2001 Ford Explorer Sport Trac?

When you detect a gas smell in your 2001 Ford Explorer Sport Trac, it is essential to act swiftly due to the serious implications of neglecting this issue. The presence of gasoline fumes not only indicates a potential leak that could lead to a fire hazard but also poses significant health risks from inhalation. Prolonged exposure to gasoline vapors can result in symptoms ranging from dizziness to more severe health complications. Additionally, failing to address a gas smell can exacerbate existing problems within your vehicle's fuel system, leading to more extensive and costly repairs down the line. Therefore, prioritizing the investigation and resolution of any gas odor is crucial for your safety and the longevity of your vehicle.

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Causes of Gas Smell in 2001 Ford Explorer Sport Trac