Skip the auto shop - Our mechanics make house calls

Q: The car smells of gas, probably has a leak

asked by on

Hi. I think my car is leaking gas somewhere. I can smell it on the outside of the vehicle. It comes through the vents of the AC. The smell is very noticeable if the car has been sitting for a while. I once smelt gas after the car was in the sun for over an hour. I haven't seen any leaks beneath the car anywhere. I took the car to the dealers. They were able to smell the gas but couldn't find the leak. They checked the welding and said it was fine. Other test they did on the car haven't shown any issue with the car. Could you give me some advice? It seems a bit unsafe to drive like this and nobody sees any issue. Thank you in advance.

A: When an air conditioning refrigerant leak i...

When an air conditioning refrigerant leak is being detected, a mechanic will often use an electronic leak detector that is specifically designed to ’sniff’ for a specific refrigerant. These electronic leak detectors are also made to detect fuel leaks. I would recommend locating a mechanic that owns one of these electronic leak detectors and enlisting their assistance in inspecting an oil/fluid leak. This would be the best chance at finding the leak considering that is is not large enough to be seen by multiple people.

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: The car won't start, but I think it is the crank sensor, not the starter.

It is possible that your crank sensor may be at fault for your vehicle not starting. If the crank sensor goes bad the engine can not fire the spark plugs or the fuel injectors. This is a pretty common failure...

Q: clutch sticks halfway after pressing down, cannot engage gears

Hello. It is important when discussing master and slave cylinders to make it clear you are talking about the clutch and not the brake system – there isn't a proportioning valve in the clutch system. Both have master cylinders and...

Q: My engine rattles and klinks loudly and when I drive it won't go over 20 mph , i don't know what to do, some one help me

Hello, and thank you for writing in. The first thing we need to do is identify the cause of the noise. Rattling is usually related to a broken timing chain, a drive belt or pulley issue, or more serious issue...

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...
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 Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.