Skip the auto shop - Our mechanics make house calls

Q: Why would there be gas leaking from underneath the car?

asked by on

I went to lunch and came back in the mid day heat didn't bottom out any where but I got home turned off the car and came out to a puddle of gas I couldn't see exactly where the leak was it was none of the immediately visible pipes. I disconnected the battery trying to kill the fuel pump it persisted to leak. Then I opened the gas cap and a lot of air came out like it was under a lot of pressure and the leak stopped but I may have just been out of gas since I had less than a quarter tank and it was coming out at not quite a stream but fast drips.

My car has 191000 miles.
My car has a manual transmission.

A: This sounds like potentially a problem rela...

This sounds like potentially a problem related to the fuel tank venting or possibly a leak in the tank itself. This is a difficult problem to diagnose without testing the tank for leaks. Because this can be very dangerous if not done properly, I would recommend having an certified expert, like one from YourMechanic, come to your home to diagnose the fuel leak and help you fix it accordingly.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Speedometer stick and jumps

Hello. Your Geo utilizes a speedometer cable (rather than an electronic sensor and wiring) to communicate speed from the transmission to the speedometer cluster. Given your mileage, the cable lining has probably deteriorated and the cable should be replaced. If...

Q: why does my engine still stall after cleaning distributor cap, replacing air cleaner, fuel filter and spark plug.

Cleaning your distributor cap is not usually successful. The cap can have problems that cannot be seen with the naked eye. It should be replaced along with rotor, spark plugs, and spark plug wires. The description of your symptoms certainly...

Q: Oil and gas smell when AC is on.

This could be a serious issue and needs to be looked at immediately. It is possible a fuel leak has developed in the fuel supply or return line. This leaking fuel could be ignited and fire could result. The entire...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...