Q: Detecting strong gas smell.

asked by on January 12, 2016

Every time I fill my car up, I detect a strong gas smell. The Check Engine light is on, and when I have it checked, it lists the EVAP system. I had the car parked on a steep incline after a hard bottom scrape, and it leaked a pie pans worth of gas from under the gas tank. It seems like the gas came from the top of the gas tank though.

The EVAP system is used to prevent fuel vapors from escaping into the atmosphere. The powertrain control module (PCM) monitors this system to ensure it is completely sealed. If a leak is detected, the PCM will illuminate the check engine light. From what you describe, it sounds like you may have a leak somewhere around your fuel filler neck. However, the EVAP system is complex. Only inspection by a trained mechanic, like one from YourMechanic, will give a definitive answer.

Was this answer helpful?
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

Leak under car

Hello. It sounds like there may still be a coolant leak which could explain why the engine needs coolant light comes on a few days after adding coolant. A certified mechanic, such as one from YourMechanic, can do a coolant...

Getting the code P0500. Changed both NC & NT sensors. Can't pull out the vehicle speed sensor (VSS).

Hi there. The code P0500 is in reference with the vehicle speed sensor. The possible causes that contribute for this code to appear are: The vehicle speed sensor (VSS) is not reading properly There is a broken or frayed...

2012 Nissan Murano codes P0011 & P0021 - any trouble shooting advise would be much appreciated!

The solenoid is mounted to the front engine cover, toward the front of the engine compartment, and above the crankshaft pulley. The two codes, P0011 and P0021 signify a fault in the variable valve timing control system. Although the engine...

Related articles

Top Five Selling Cars in Colorado in 2012
Colorado Colorado offers a varied climate depending on where drivers are located. Those in lower elevations see plenty of sunshine all year, while those in the mountain areas can see as much as 300 inches of snow. Due to this,...
How to Buy a Good Quality Water Pump
When When your car is running it's important that it maintains the proper temperature, which is why the water pump is so important. Not only does it pump water, as the name suggests, but it also pumps coolant into the...
How Long Does an Oil Cooler Adapter Gasket Last?
There There are a number of gaskets on an engine and each of them performs a specific purpose. For most car owners, their gaskets are not something that they think about until one of them begins to malfunction. Most of...