Why Does My 2020 Dodge Challenger Smell Like Gas?

How to Fix gas

The 2020 Dodge Challenger is a powerful machine, and keeping it running smoothly is crucial. According to owner experiences, maintaining your vehicle can be an emotional experience. As one owner shared, "I’m taking it out for one last spin, maybe fill it up and wash it too. It’s been a good run, it wasn’t that long but this car is one of my best purchases in my life and I truly feel like someone watching a dear friend go." (source) This guide addresses a potential problem for your vehicle.

Symptoms

Owners have described symptoms related to gas in their vehicles. These symptoms can range from noticeable odors to performance issues. It is important to note that owners have noticed the smell and other issues and some have experienced icicle eyes as part of the process.

You might notice a strong gasoline smell, especially after filling up the gas tank or when the vehicle is parked in an enclosed space. This smell can be intermittent or persistent, depending on the severity of the issue. Pay attention to when you notice the smell; is it only after filling up or is it continuous?

Additionally, you may experience rough idling, stalling, or difficulty starting the engine. These symptoms could indicate a problem with the fuel system, preventing the engine from receiving the correct amount of fuel. It’s important to address these issues promptly to prevent further damage.

Some owners have reported experiencing unusual vibrations while driving, particularly at certain speeds. While vibrations can be caused by various factors, a gas-related problem could contribute to these issues.

Pay attention to how your vehicle performs, as this can help you identify underlying problems. Noticing subtle changes and investigating them promptly can save you from more costly repairs down the road.

Most Likely Cause

The most likely cause, based on owner reports, is related to the gas. This can involve leaks in the fuel lines, a faulty gas cap, or issues with the fuel tank itself. If you notice a smell, this is a good indicator.

The gas cap is a simple but crucial component of the fuel system. If the gas cap is loose, damaged, or missing, it can allow fuel vapors to escape, causing a noticeable smell. A faulty gas cap can also affect the fuel pressure in the system, leading to performance issues.

Leaks in the fuel lines can also be a significant cause. Over time, the rubber hoses can deteriorate, crack, or become loose at the connections, leading to fuel leaks. These leaks can be difficult to spot but will emit a strong gasoline smell.

The fuel tank itself can also be a source of the issue. Corrosion, damage from road debris, or manufacturing defects can cause leaks in the tank. These leaks can be slow and difficult to detect, but they can pose a significant fire hazard.

How to Diagnose

Diagnosing requires careful inspection and some basic tools. Here's a step-by-step process to help you identify the source of the problem:

1. Gather your tools: You’ll need a flashlight, safety glasses, gloves, and a basic set of wrenches and screwdrivers. A jack and jack stands may also be necessary for inspecting the fuel tank.

2. Check the gas cap: Start by inspecting the gas cap. Make sure it is properly tightened and not damaged. If the gas cap looks worn or cracked, replace it with a new one.

3. Inspect the fuel lines: Carefully inspect the fuel lines for any signs of leaks, cracks, or damage. Pay close attention to the connections and fittings. Use your flashlight to get a good view of the lines.

4. Check the fuel tank: If you suspect a leak in the fuel tank, use a jack and jack stands to safely lift the vehicle. Inspect the tank for any signs of damage, corrosion, or leaks. Be extremely cautious when working around fuel.

5. Perform a pressure test: A fuel pressure test can help you determine if the fuel system is maintaining the correct pressure. You’ll need a fuel pressure test kit for this step. Follow the instructions included with the kit to perform the test.

6. Look for wet spots: Check around the fuel injectors and fuel rail for any signs of wetness. If you notice any, this could indicate a leak. Use a clean cloth to wipe the area and then recheck to see if the wetness returns.

7. Smell Test: Use your nose. This can often be the best way to find the area in question.

8. Check For Codes: Use an OBD2 scanner to check for any diagnostic trouble codes (DTCs) related to the fuel system. These codes can provide valuable clues about the source of the issue.

9. Professional Inspection: If you are unable to locate the source of the leak or are uncomfortable working on the fuel system, take your vehicle to a qualified mechanic for inspection.

Step-by-Step Fix

Based on what has worked for other owners, here’s a step-by-step guide to fix your fuel issue. Remember to prioritize safety and take all necessary precautions when working with fuel.

1. Replace the Gas Cap: If the gas cap is damaged or loose, replace it with a new one. This is a simple and inexpensive fix that can often resolve fuel smell issues. As one owner shared, "Previous owner put all the SRT stuff on it, not sure exactly why, but I really don’t mind. Just the slowest “Srt8” in the world 😂" (source). A new cap can prevent fuel vapors from escaping.

2. Repair or Replace Fuel Lines: If you find a leak in the fuel lines, repair or replace the damaged section of the line. Use fuel-resistant hoses and clamps to ensure a secure connection.

3. Seal Leaks: Clean the affected area with a wire brush to remove any rust or debris. Then, apply a layer of epoxy putty, spreading it evenly over the damaged area. Allow the epoxy to cure completely according to the manufacturer's instructions.

4. Replace the Fuel Tank: If the fuel tank is leaking, it will need to be replaced. Drain any remaining fuel from the tank and disconnect the fuel lines and electrical connections. Remove the old tank and install the new one, making sure to properly connect all lines and connections.

5. Check the injectors: Remove the old injectors. Then, clean the area where the injectors sit with a clean rag. Install the new injectors, ensuring they are properly seated and secured.

6. Test the system: Install a new gas cap. Start the engine and let it run for several minutes, then check for leaks.

7. Check for Leaks: After completing any repairs, start the engine and check for any leaks around the repaired areas. Use a flashlight to get a good view of the lines and connections.

8. Monitor the Smell: Keep an eye on the gasoline smell after making repairs. If the smell persists, there may be additional leaks or issues that need to be addressed.

9. Consult a Professional: If you are unsure about any of these steps or are uncomfortable working on the fuel system, take your vehicle to a qualified mechanic for assistance.

Parts and Tools Needed

• New Gas Cap (Part Number: varies by model)
• Fuel-resistant Hoses (various sizes, depending on the application)
• Fuel Line Clamps
• Fuel Tank (Part Number: varies by model)
• Jack and Jack Stands
• Wrenches and Screwdrivers
• Flashlight
• Safety Glasses
• Gloves
• Fuel Pressure Test Kit (optional)
• OBD2 Scanner (optional)
• Cleaning brush
• Epoxy Putty
• Rags

Real Owner Costs

The cost of repairing a gas issue can vary widely depending on the source and severity of the problem. Here are some examples of costs based on owner experiences:

• Gas Cap Replacement: A new gas cap typically costs between $20 and $50. This is a relatively inexpensive repair that you can easily do yourself.

• Fuel Line Repair: Repairing a damaged fuel line can cost between $50 and $200, depending on the extent of the damage and whether you do it yourself or hire a mechanic.

• Fuel Tank Replacement: Replacing the fuel tank is a more significant repair that can cost between $500 and $1500, including parts and labor.

• Professional Inspection: Having a mechanic inspect the fuel system can cost between $100 and $200. This can be a worthwhile investment if you are unsure about the source of the problem.

Keep in mind that these are just estimates, and the actual cost may vary depending on your location and the specific repair needed.

Prevention

Preventing gas issues involves regular maintenance and careful attention to your vehicle. Here are some tips to help you prevent problems:

• Regular Inspections: Inspect the fuel lines, gas cap, and fuel tank regularly for any signs of damage or leaks. Catching problems early can prevent them from becoming more serious and costly.

• Proper Gas Cap: Always make sure the gas cap is properly tightened after filling up the tank. A loose gas cap can allow fuel vapors to escape and cause performance issues.

• Avoid Overfilling: Avoid overfilling the gas tank, as this can cause fuel to enter the evaporative emissions system, leading to problems.

• Use Quality Fuel: Use high-quality fuel from reputable gas stations. Lower-quality fuel can contain contaminants that can damage the fuel system.

• Address Issues Promptly: If you notice any signs of a potential problem, such as a gasoline smell or performance issues, address it promptly. Delaying repairs can lead to more serious damage.

• Regular Maintenance: Follow the manufacturer's recommended maintenance schedule for your vehicle, including fuel system maintenance.

• Good Driving Habits: As one owner shared, "Just paid her off... she is all mine. First picture is the day she was delivered." (source. Proper driving habits will ensure your vehicle lasts for a long time.

What Owners Say

Real experiences from DODGE owners:

Owner Experiences

"Where's all the octane red fatties at? Here's mine, '21 scat with just over 10k miles, freshly washed and waxed." — Kash_Register_MWO (source)

"Previous owner put all the SRT stuff on it, not sure exactly why, but I really don’t mind. Just the slowest “Srt8” in the world 😂" — Dependent-Prize8757 (source)

"Just paid her off... she is all mine. First picture is the day she was delivered." — FantasticSite7410 (source)

Real Repair Costs

"I actually have a 2020 Scat Shaker in the same color." I respond He picks my brain about my car and tells me well I'll give you $40K for yours.." — fredout1968 (source)

"So what's another $100K? For a split second I actually spun that around in my pea brain.." — fredout1968 (source)

FAQ

Q: How long does it take to fix a fuel issue?

A: The time it takes to fix this issue can vary depending on the source and severity of the problem. Replacing a gas cap can take just a few minutes, while replacing a fuel tank can take several hours. As one owner shared, "I bought my dream car for my 30th birthday! A year ago my life was falling apart and I wanted it to end!" (source. If you are unsure about the repair, it is best to take your vehicle to a qualified mechanic.

Q: Can I drive with a fuel smell?

A: It is not recommended to drive with a fuel smell, as it could indicate a potentially dangerous leak. Fuel leaks can pose a fire hazard and can also damage the engine. If you notice a fuel smell, it is best to have your vehicle inspected by a mechanic as soon as possible.

Q: Is this a common issue on the 2020 Dodge Challenger?

A: While gas issues are not necessarily specific to the 2020 Dodge Challenger, they can occur on any vehicle due to wear and tear or damage to the fuel system. Regular maintenance and inspections can help prevent these issues.

Q: DIY vs mechanic - what's recommended?

A: Whether to DIY or hire a mechanic depends on your comfort level and experience with automotive repairs. Simple repairs, such as replacing a gas cap, can often be done yourself. However, more complex repairs, such as replacing a fuel tank, are best left to a qualified mechanic.