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.

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 1,000 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. The car smells of gas, probably has a leak

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: Startup problems, occasional stalling

Hello. It sounds like the mass airflow sensor may have failed, causing the problems you are having starting your car and idling. The mass airflow sensor helps regulate the air/fuel mixture the engine receives. When it is not working properly,...

Q: Car turns over but won't start

Hello. I strongly suggest checking the pressure of the fuel system to verify that the fuel pump, fuel filter and fuel lines are in good working order. By doing this check, it will ensure they are receiving the proper PSI....

Q: Headlights stay on

Hello. This sounds like the headlight switch is faulty. You might also want to check to make sure you have the headlight switch in either the auto position, or the off position. If the headlight switch is left in the...

Related articles

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...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...