“A sulfur smell could indicate an imbalance in your engine's air-to-fuel ratio,” says Trotta. If you have fuel-injection problems, the unburned fuel can plug your catalytic convertor, and the exhaust will have nowhere to go.,
Pure sulfur has no smell. The stink associated with the element comes from many of its compounds, according to Chemicool.Sep 28, 2017
It is not unusual for a car's exhaust to emit an ammonia smell. The reason behind this odor is the catalytic converter, which cleans up and converts harmful pollutants into less harmful emissions. However, when the catalytic converter fails or malfunctions, it can cause an ammonia-like odor in your vehicle's fumes.Aug 11, 2021
Gas smell. Radiators can't leak harmful gases like carbon monoxide (which is odourless), so any gassy smell you detect coming from a radiator is unlikely to be any cause for panic. However, if you can smell something sulphurous or egg-like then there might be a build up of hydrogen sulphide in your radiator.Feb 9, 2021
Automatic transmission fluid is typically bright red and smells slightly sweet if everything is running smoothly. If it's dark or has a burnt smell, you'll likely need the fluid changed, and you should also have your transmission inspected for potential problems.
An Exhaust Leak Is the Likely CausennOnce you've ruled out another vehicle, the most likely cause of an exhaust smell in your car's cabin is an exhaust leak. The gasses produced by your engine normally escape through the exhaust pipe. A leak in this system means that it's also escaping somewhere else.Feb 18, 2019
If your car smells like rotten eggs, there is something wrong with it that needs to be fixed right away. Not only is the sulfur smell harmful to your health, the vehicle can be damaged if this problem is left unchecked.Jul 21, 2021
When you increase rpm the hvac tends to blow air, the fliter can get wet causing mold. Then it will smell like crap for sure.
Whenever gasoline gets to the catalytic converter, it will transform the amounts of hydrogen sulfide into sulfur dioxide. This will cause the catalytic converter to not process the gases as it should, which will give the smell of rotten eggs. This will cause you to need a new catalytic converter.Feb 18, 2021
The catalytic converter in your vehicle is designed to neutralize emissions, like hydrogen sulfide, to harmless, odorless gases that do not contribute to air pollution. A faulty or clogged catalytic converter will not function optimally and leads to the emission of unneutralized, harmful, and intense sulfur gas.Apr 23, 2021