Skip the auto shop - Our mechanics make house calls

Q: Gas leaking from under/around fuel tank

asked by on

just started up my old bmw that has a major gas leak. when i started it up and let it run there is a continuous dropping of fuel coming from a panel right in front of the rear right tire. What do you think it is coming from? gas tank? fuel filter?

My car has 90000 miles.
My car has a manual transmission.

A: Hello. Fuel leaks need to be taken seriousl...

Hello. Fuel leaks need to be taken seriously. You will want to look into this immediately. Is the vehicle only leaking when it is running? If this is the case its likely coming from a line or a fitting somewhere in the system as it leaves or returns to the tank. You will want to find the lines where they enter the tank and trace them as far back as you need to in order to find the issue. If the tank was damaged it would likely leak all the time. The filter is typically located further towards the engine, not to say the fuel cant travel downwards and collect where you are seeing it. You may want to raise the vehicle off of the ground and get a better look as to where that fuel is coming from. Have you had any recent damage to that area? Even something as small as running over a curb can cause issues like this.

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

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: One of the relays is clicking and draining the battery

There could be a parasitic draw involving the relay that is keeping it engaged. Lexus specifications for parasitic draw with the key off is approximately 50 milliamps. Anything over this amount indicates a parasitic draw. You could remove the fuses...

Q: Traction Light on

It sounds like there is a serious problem in the traction control system. Fault codes need to read out to see what the Electronic Brake Control Module (EBCM) sees. For the traction control system to work properly, it needs to...

Q: Coolant leaking even after replacing everything

Try checking the thermostat housing as well as the water pump shaft area. These are two additional places that have seals (water pump shaft) and gaskets (thermostat housing) that are prone to leak, especially under pressure. You may want to...

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...
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...
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...