I have a 2008 Pacifica that was fine for 25000 miles. Then the right front tire blew out and was replaced by the dealer. Since then, I get a very bad natural gas smell inside the car whenever I hold down the brake pedal at a stoplight. The dealer is without a clue, Chrysler tells me its not cover…

You’re getting ready to sue somebody for what? If you ran over a skunk and couldn’t get the smell off the car would you go sue somebody? Do you have some strange idea that purchasing an extended warranty is some right to having a perfect car that is always exactly in order according to your own pe…

You might want to have someone get under the dash and while holding the brake pedal down, feel the brake light switch above the brake pedal to see if it heats up. Switches encapsulated in plastic can give off all kinds of odors when they start to overheat. Tester

Cigroller is right about the smell. It’s hydrogen sulphide gas out of the cat converter. This gas is used as a warning agent with natural gas and propane, thus the usual mix-up. Cat may be punctured or not working right. I can see why they said a warranty doe not cover smells, but a cat that is …

Yes the dealer drove the car and yes, they too smelled the natural gas odor, from 10 feet away. It doesn’t make any sense. When we bought the warranty the dealer said that it covered "everything "from bumper to bumper. The selling point was that we would have to do no maintenance, only buy fuel. …

You should check for traces of skunk under the car…skunk odor and the additive to natural gas are in the same class of chemicals…mercaptans.

Hydrogen Sulfide doesn’t smell much like t-butyl-mercaptan which is the most common odorant for natural gas. At least not to me. And not to most people I think. However, the way to test would be to start the car in the driveway and let it idle in PARK for ten or twenty minutes. If you get the sm…

Do an experiment for yourself. The next time you’re in a situation where you would smell it, rather than sitting with your foot on the brake, put the car in park and remove your foot from the brake. Results? On another occasion, shut down all heat/AC/fan functions being sure that the fresh air int…

This might sound odd to you, but check the drive axles, particularly the outer CVs and the inner joint boots well. When the boots break, they throw grease around with can land on hot exhaust pieces, engine/trans, or brakes. The grease in the half-shafts have a particular smell to them that I would…

We have a 2010 Mazda CX-9 with the exact same issue. It smells just like a natural gas leak which worried us. The dealer checked first for fuel leaks and hasn’t found anything. He mentioned there are a lot of plastic parts that get hot under the hood so I intend to open the hood and sniff around fro…

Natural gas smell when holding down brake at light

Maintenance/Repairs

jantasca March 5, 2010, 4:26am 6

The dealer said they checked the cat first thing and found no problems with it. The idea of cooking off the sulfer makes sense except that it isn’t a sulfer smell. Turn on the burner on a gas stove, that’s the smell.

Topic		Replies	Views
Smell of natural gas Maintenance/Repairs audi , allroad	5	37211	October 2, 2013
2007 Ford Escape emitting a strange smell from... I don't know from whence it originates Maintenance/Repairs brakes , smells	13	8136	October 18, 2015
The smell of Natual Gas coming through my ventilation Maintenance/Repairs gmc , 1500	10	20594	January 13, 2011
Is it unhealthy to drive with bad catalytic converter? Maintenance/Repairs nissan , sentra	38	21837	March 30, 2023
Question about rotten egg smell (safety) Maintenance/Repairs nissan , sentra	23	15428	July 17, 2022

Natural gas smell when holding down brake at light

Related topics