Skip the auto shop - Our mechanics make house calls

Q: Gas tank leaks when filled up.

asked by on

My gas tank leaks when I fill it up.

A: Hello, A leaking gas tank should be address...

Hello, A leaking gas tank should be addressed sooner than later, it is not only a hazard to yourself but also to the environment. Seeing that your car is an older model, it’s probably safe to assume it’s made of metal. The most likely cause of the leak would be the seal that is used on the fuel level sensor and or the seal for the fuel pump. My recommendation would be to drive the vehicle till it’s less than a quarter tank and then enlist the aid of a mechanic to help find the leak.

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: Fluid leak on passenger's side.

The AC has a drain on the passenger side that if it gets clogged with debris then the AC water could back up into the passenger floor. Another issue could be the sunroof drains are getting clogged and could leak...

Q: Engine out of time - 1997 BMW 740iL

Hello there, an improperly timed engine can result in serious damage to your 1997 BMW 740iL. When the timing is not set properly, the risk is if the timing is far enough out of the valves can come into contact...

Q: Diesel fuel accidentally added to car and car won't start

Hey there, thanks for writing in about your 2011 Infiniti G25. Diesel fuel can damage the injectors, lines, and filters of a gasoline fuel system. Since a gasoline engine can't correctly combust diesel fuel, engine damage can also result. The...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...