31 May Why Is My Car Leaking Gasoline?
It never fails – the inevitable headache I get every time I fill my tank at the gas station. No, I’m not talking about gas prices; I’m talking about the smell. That sickly sweet, chemical smell of gasoline. It’s very distinctive and something you should be aware of. If your car smells like gasoline long after leaving the gas station, you have a gas leak. Your vehicle’s fuel system is complex, with way more parts than just a fuel tank, so schedule an auto repair service immediately if you think your car is leaking gasoline.
Common Leaking Gasoline Sources
A fun fact about leaking gas: it evaporates pretty quickly, so you will not always find spots or puddles of fuel under your car. Escaping gas fumes can also cause your car to smell, even without the telltale signs of pooling liquid. If your car smells like gasoline, then one (or more) fuel system components are compromised in some way. Let’s review some top contenders:
Bad Oxygen Sensors
A damaged or malfunctioning oxygen sensor can also be a source of leaking gasoline. The oxygen sensor in your car monitors the oxygen levels in the exhaust to ensure the correct air-to-gasoline ratio is maintained. With a bad oxygen sensor, too much gas may enter the engine, causing incomplete combustion and a gas smell.
Damaged Fuel Tank
Auto manufacturers design fuel tanks to withstand extreme temperatures, road debris, and vehicle vibrations. However good their design, they can develop flaws over time and start leaking. If you smell gas, check under your car near the fuel tank for pooling liquid or a very strong gas smell.
Faulty Gas Cap
Your car’s gasoline may leak if your gas cap doesn’t seal correctly. The gas cap covers the top of the gas tank to stop gas and fumes from escaping. It also prevents dust and debris from entering the fuel tank, contaminating the gasoline. Gas caps wear out over time and may become loose, allowing gasoline and fumes to escape. Your vehicle’s Check Engine light usually illuminates when you have a faulty gas cap.
Leaking Seals, Gaskets, O-Rings
There are a lot of seals, gaskets, and O-rings in your vehicle’s engine and fuel system. Due to the extreme heat generated by combustion engines, these seals will dry out, crack, and eventually leak. A visual inspection can sometimes identify which seal is causing the leak, but not always. Leaking gas fumes are harder to detect and often require pressure testing or other specialized equipment.
Loose or Cracked Fuel Lines
A loose or cracked fuel line can cause leaking gas. Fuel lines (or hoses) deliver gasoline from the fuel tank to the engine. They are usually mounted to the undercarriage, and road debris, fender benders, or other faulty auto components may damage them. With loose or improper attachments, the chance of leaks increases.
Malfunctioning Gas Pump
The gas pump transfers gasoline from the fuel tank through the entire fuel system. A fuel pump may malfunction or clog from debris in the gas tank. It may also wear out and require replacement once it reaches the end of its lifespan.
Is Driving With Leaking Gasoline Dangerous?
While gas leaks do not affect vehicle handling or stability, driving with a fuel leak isn’t precisely safe either. Gasoline and its fumes are flammable and considered a fire hazard. Never smoke in or near a car with a fuel leak. You put yourself at risk every time you drive a vehicle that is leaking gasoline. Don’t delay; make an appointment with your local auto service center for fuel system auto repairs right away.
Health Hazards
Exposure to gasoline, including breathing gas fumes, can be harmful to your health. Gasoline contains carbon monoxide (among other chemicals), which is dangerous when inhaled. It can cause cold and flu-like symptoms, including headaches and nausea. If you are driving and notice a strong gas smell, pull over, air out the vehicle, and schedule a service appointment immediately. If your symptoms do not improve, consult your physician.
More Trips To The Gas Station
Gas leaks will prompt more trips to the gas station. Carefully check your mileage and calculate how many miles per gallon you are getting since you noticed your car smells like gas. If your fuel system is losing gas, it will show up on your car’s fuel gauge and in your wallet.
Fuel System Auto Repairs
A trained professional should inspect fuel system issues. The auto technicians at Ron’s Garage will thoroughly inspect your vehicle to locate the cause of the leaking gasoline. We will check your fuel tank and arrange the necessary auto repairs to get you back on the road again quickly and safely.
Schedule Leaking Gasoline Service in Ann Arbor, MI
Contact our service reps at (734) 961-4701 or online to schedule your fuel system diagnostic service today.