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.

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!
  1. Home
  2. Questions
  3. Why would there be gas leaking from underneath the car?

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: Cranks over but won't start

Hi there. Although you indicated that you replaced the crank sensor, it is highly probable that the electrical harness that attaches to the sensor may be the source of your problem. If this wasn't replaces as well, I would start...

Q: How do I select a USB folder?

To select a folder when playing off of a USB device, simply press the right arrow or the left arrow until you reach the desired folder.

Q: Rear axle housing oil leak - 2004 Dodge Ram 1500

Hello - there are several possible sources of the gearlube leak in the rear end housing: the pinion shaft seal, the large diameter area where the differential carrier is bolted to the rear axle housing, or the rear axle vent...

Related articles

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...