The pungent smell of rotten eggs can send people running for the hills, so when that odor is inside your vehicle, yikes! Yolks! The good news is that a trained service technician can locate the source of that smell and stanch the stench… that comes from another word that begins with S. Sulfur.
Fuel contains small amounts of hydrogen sulfide, but they're enough to stink up a vehicle when it's not properly burned. You may know that the smell of rotten eggs often signals a catalytic converter that isn't working as it should. That could be due to age, damage or an abundance of oil clogging it up.
If a sensor in charge of managing the fuel fails, the engine can run with a fuel mixture that is too rich. That can overload the catalytic converter and allow some byproducts to escape without interruption from the chemical reaction that prevents them from going out of the tailpipe.
There's another possibility, but it's usually only found in stick-shift vehicles. That's leaking old transmission fluid.
Catalytic converter repairs are best left to a professional. Technicians at your vehicle service facility have equipment and training that can help them pinpoint the cause of this funky fragrance. Once the cause is found, repairs are made, and/or parts are replaced, and the smell should go away fairly rapidly.
Allied Auto Works
2073 Grant Road
Los Altos, CA 94024
6509687227
alliedautoworks.com