# Gasoline smell inside car 2017 Honda Fourtrax Rincon

> ClearTheCode — A persistent gasoline smell inside your 2017 Honda Fourtrax Rincon can be concerning and dangerous. Learn common causes, how to diagnose, and fix fuel leaks safely.

Source: https://clearthecode.com/articles/fuel-smell-inside-car-honda-fourtrax-rincon-2017
Author: ClearTheCode

# Gasoline smell inside car 2017 Honda Fourtrax Rincon

Experiencing a persistent **gasoline smell inside your 2017 Honda Fourtrax Rincon** can be alarming, not to mention a potential fire hazard. While ATVs don't have an "inside car" in the traditional sense, a strong fuel odor can permeate the riding area, making the experience unpleasant and indicating a serious issue. This smell usually points to a fuel system leak or an evaporative emissions problem that needs immediate attention. Identifying the source quickly is crucial for your safety and the longevity of your ATV.

## What drivers notice on this 2017 Honda Fourtrax Rincon

Owners of a 2017 Honda Fourtrax Rincon often report a distinct gasoline odor while riding, immediately after shutting off the engine, or even when the vehicle is parked in a garage. This smell can range from a faint whiff to an overpowering odor that causes concern. The odor might be more noticeable under specific conditions, such as:

-   After filling the fuel tank.
-   When riding over rough terrain, which can jostle components.
-   During or after periods of hard acceleration or engine braking.
-   When the ATV has been sitting for a while, allowing fumes to accumulate.
-   A visible wet spot or drip under the ATV, especially near the fuel tank or engine area.

## At a glance: difficulty, repair cost, and diagnostic workflow

- **Difficulty Rating:** 6/10 — Moderate
- **Common Symptoms:** Visible fuel leaks: Puddles, drips, or wet spots on or under the ATV, particularly around the fuel tank, lines, or carbu; Reduced fuel economy: If fuel is leaking, your ATV will consume more fuel than usual for the same amount of riding.; Check Engine Light (CEL): While less common for simple leaks on older ATVs, severe evaporative system faults could trigg; Difficulty starting: A significant leak might cause a loss of fuel pressure, making the engine harder to start or causin
- **Estimated Repair Cost:** $100–$900 (parts + typical shop labor)
- **OEM Tooling Required:** Standard OBD-II scanner and hand tools

**Diagnostic workflow:**
1. Confirm the symptom on your vehicle.
2. Scan for stored or pending codes with an OBD-II tool.
3. Inspect the most common causes in this guide (visual checks first).
4. Run verification tests before replacing parts.
5. Repair, clear codes, and verify on a test drive.

## Symptoms and warning signs

Beyond the obvious smell of gasoline, several other symptoms can accompany a fuel leak on your 2017 Honda Fourtrax Rincon:

-   **Visible fuel leaks:** Puddles, drips, or wet spots on or under the ATV, particularly around the fuel tank, lines, or carburetor/injector area.
-   **Reduced fuel economy:** If fuel is leaking, your ATV will consume more fuel than usual for the same amount of riding.
-   **Check Engine Light (CEL):** While less common for simple leaks on older ATVs, severe evaporative system faults could trigger a light if equipped with a sophisticated ECU.
-   **Difficulty starting:** A significant leak might cause a loss of fuel pressure, making the engine harder to start or causing it to run rough.
-   **Engine performance issues:** Stalling, misfires, or a general lack of power could indicate that the engine isn't getting the correct fuel supply due to a leak.
-   **Hissing sound:** A leaking fuel cap or vent line might produce a subtle hissing noise as pressure escapes.
-   **Cracked or brittle fuel lines:** A visual inspection might reveal deteriorated rubber components.

## How to verify and confirm the issue

Confirming the source of a gasoline smell on your 2017 Honda Fourtrax Rincon involves careful inspection. Always ensure the ATV is cool and in a well-ventilated area, away from open flames or sparks.

-   **Visual inspection:**
    -   Start by checking the fuel tank itself for cracks, especially around seams or mounting points.
    -   Inspect all fuel lines, from the tank to the fuel pump (if equipped), and then to the carburetor or fuel injector. Look for cracks, chafing, loose connections, or wet spots.
    -   Examine the fuel cap and its seal. A faulty cap can allow fumes to escape.
    -   Check the fuel petcock (if present) for leaks around its valve or connections.
    -   Inspect the carburetor bowl gasket or fuel injector seals for any signs of leakage.
    -   Look at the fuel pump (if external) for any wetness around its housing or connections.
    -   Examine the evaporative emissions system components, if your Rincon is equipped with one (canister, vent lines). These are less common on older ATVs but worth a check.
-   **Pressure test (professional):** A qualified technician can perform a fuel system pressure test to pinpoint leaks that aren't immediately visible.
-   **Engine running inspection:** With extreme caution, start the engine and look for active drips or sprays, particularly around the fuel lines and connections, while the system is pressurized.
-   **Smell test:** Carefully sniff around different components to localize the strongest odor.

## Common causes (most likely first)

Several components in your 2017 Honda Fourtrax Rincon's fuel system can be responsible for a gasoline smell:

-   **Cracked or deteriorated fuel lines:** Over time, rubber and plastic fuel lines can become brittle, crack, or chafe, leading to leaks. This is a very common issue on older ATVs.
-   **Loose fuel line connections:** Clamps can loosen, or connections might not be fully seated, especially after maintenance.
-   **Faulty fuel tank cap:** The rubber seal on the fuel cap can degrade, allowing fuel vapors to escape.
-   **Leaking fuel tank:** The tank itself can develop cracks, especially if subjected to impacts or prolonged exposure to harsh conditions. The fuel level sending unit gasket is also a common leak point.
-   **Carburetor bowl gasket leak (if carbureted):** The gasket sealing the carburetor bowl can dry out or crack, leading to fuel drips.
-   **Fuel injector o-ring seals (if fuel injected):** Degraded o-rings around the fuel injectors can cause leaks.
-   **Fuel pump leak:** The fuel pump housing or its seals can fail, leading to external leaks.
-   **Evaporative emissions (EVAP) system issues:** While less common on ATVs, if your Rincon has an EVAP system, a cracked canister, faulty purge valve, or damaged vent lines can release fuel vapors.

### Related guides on this vehicle

- [Gas Smell Inside Car Cabin While Driving 2019 Toyota Corolla](/articles/evap-system-gas-smell-cabin-toyota-corolla-2019)
- [AC Blowing Hot Air When Car Is Idling 2017 Toyota Land Cruiser](/articles/ac-blowing-hot-air-when-idle-toyota-land-cruiser-2017)
- [Car Won't Start, No Click, No Crank 2017 Toyota Rav4 Diagnosis](/articles/car-wont-start-no-click-no-crank-toyota-rav4-2017)

## Step-by-step diagnosis and fixes

Addressing a gasoline smell requires a methodical approach to ensure safety and effectiveness.

1.  **Safety first:** Ensure the ATV is cool, in a well-ventilated area, and away from any ignition sources. Wear appropriate safety gear, including gloves and eye protection.
2.  **Visual inspection:** Thoroughly inspect all fuel system components as described in the "How to verify" section. Pay close attention to the top of the fuel tank, fuel lines, and connections.
3.  **Tighten connections:** If you find any loose hose clamps or threaded fittings, gently tighten them. Do not overtighten, as this can strip threads or damage components.
4.  **Replace damaged fuel lines:** If you identify cracked or brittle fuel lines, replace them with OEM or high-quality aftermarket fuel-rated hose. Ensure clamps are secure. You can find general repair guides and parts information at All repair guides.
5.  **Inspect and replace fuel cap:** Check the fuel cap's rubber seal for cracks or hardening. If it's compromised, replace the cap.
6.  **Address carburetor/injector leaks:**
    -   For carbureted models, if the carburetor bowl gasket is leaking, it will need to be replaced. This often involves removing and partially disassembling the carburetor.
    -   For fuel-injected models, if injector o-rings are leaking, they must be replaced. This usually requires careful removal of the fuel rail and injectors.
7.  **Check fuel tank and sending unit:** If the leak appears to be from the tank itself, it might need patching (for minor plastic tank cracks) or replacement. The fuel level sending unit gasket is a common failure point and is usually replaceable.
8.  **Inspect EVAP system:** If applicable, check the charcoal canister for cracks and all associated hoses for damage or disconnections.
9.  **Test after repair:** After any repair, start the engine and carefully re-inspect for leaks. Run the ATV for a short period, then check again.

## Repair options and cost factors

The cost and complexity of repairing a gasoline smell on your 2017 Honda Fourtrax Rincon vary significantly based on the source of the leak.

-   **Minor repairs (loose clamp, simple hose replacement):** These are often DIY-friendly and involve minimal cost, typically just for a new hose clamp or a short section of fuel line.
-   **Fuel cap replacement:** Relatively inexpensive, a new OEM fuel cap can cost $20-$50.
-   **Fuel line replacement:** Depending on the length and type of line, costs can range from $10 for a small section to $100+ for complex pre-formed lines. Labor would be additional if done by a professional.
-   **Carburetor gasket/injector o-ring replacement:** Parts are usually inexpensive ($5-$30), but labor can be significant due to the time required for removal and reinstallation of components.
-   **Fuel pump replacement:** An external fuel pump can range from $50-$200 for the part alone, plus labor.
-   **Fuel tank replacement:** This is the most expensive repair, with tanks costing $200-$500 or more, plus substantial labor for removal and installation.
-   **EVAP system components:** Canister replacement can be $50-$150, with hoses being less.

Always consider using genuine Honda parts or high-quality aftermarket equivalents for critical fuel system components to ensure reliability and safety. For more information on your specific model, you can browse vehicles at [Browse vehicles](/vehicles).

## When to see a professional

While many minor fuel system issues can be tackled by a DIY enthusiast, there are specific situations where professional help is strongly recommended:

-   **Unidentified leak source:** If you've performed a thorough inspection and cannot pinpoint the source of the leak, a professional has specialized tools and experience to diagnose it.
-   **Complex repairs:** Repairs involving fuel tank removal, internal fuel pump replacement, or intricate carburetor/injector work might require specialized tools and expertise.
-   **Safety concerns:** Any hesitation about working with flammable fuels or uncertainty about proper repair procedures warrants professional assistance. Fuel leaks pose a significant fire risk.
-   **Persistent smell after DIY attempts:** If the gasoline smell returns after you've attempted a fix, it indicates an underlying issue that needs expert attention.
-   **Lack of proper tools:** Some repairs require specific tools (e.g., fuel pressure gauge, specialized wrenches) that a typical home garage might not have. For more in-depth repair guides and general automotive knowledge, you can always refer to All repair guides.

## Frequently asked questions

### Is it dangerous to ride my 2017 Honda Fourtrax Rincon with a gasoline smell?
Yes, it is highly dangerous. A gasoline smell indicates a fuel leak, which creates a significant fire hazard. Fuel vapors are highly flammable and can ignite from a spark, hot engine components, or even static electricity. It's best to stop riding immediately and address the issue.

### Can a loose gas cap cause a strong gasoline smell?
Absolutely. A loose, damaged, or improperly sealed gas cap can allow fuel vapors to escape from the fuel tank. While it might not be a liquid leak, the vapors can be strong enough to cause a noticeable and concerning gasoline smell around your ATV. Always ensure your cap is securely tightened and its seal is intact.

### How can I temporarily stop a fuel leak on my Rincon?
There is no safe or recommended temporary fix for a fuel leak. Any attempt to patch a fuel line or tank with non-fuel-rated materials is extremely risky and could lead to a catastrophic failure. The only safe solution is to properly diagnose the leak and replace the faulty component with appropriate, fuel-grade parts.

## Sources and further reading

-   Honda Fourtrax Rincon service manual (OEM)
-   Automotive fuel system diagnostic guides
-   Online ATV forums and communities for specific model insights

This article is intended for informational purposes only and is not a substitute for OEM service procedures. Always consult a qualified technician for safety-critical work and specific repair instructions for your vehicle.

## Explore related guides on ClearTheCode

- [Browse OBD-II codes](/codes)
- All repair guides