March 26, 2023
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 search the source of that smell and stanch the stench… that comes from another words 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 can often be a sign of a catalytic converter that isn't working the way it should. That could be due to age, damage or an abundance of oil that's clogging it up.
If a sensor in charge of managing the fuel has failed, the engine can run with too rich of a fuel mixture. That can overload the catalytic converter and allow some of the byproducts to escape without interruption from the chemical reaction that is supposed to prevent them from going out the tailpipe.
There's another possibility, but it's usually only 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 made and/or parts replaced, the smell should go away fairly rapidly.
Tuffy Tire & Auto Service Center Waukesha
S31 W24721 Sunset Drive
Waukesha, Wisconsin 53189
262-513-9500
April 20, 2025
When you feel your vehicle vibrating as you're driving down the road, one cause could be something you may not have ever seen: your driveshaft. It is underneath the vehicle and most drivers don't climb under there to take a look very often. The driveshaft is a cylindrical part that helps conduc... More
April 13, 2025
Your vehicle has lots of doors including that one usually near the back on the vehicle's side. That's the fuel door, something you use every time you gas up. These endure hundreds of open-and-close cycles, usually without any problems. But when they act up, it can be a major inconvenience for ... More
April 6, 2025
Most drivers love how easy it is to turn their vehicles, and they have power steering to thank. Engineers have figured out a way to take some of your engine's power to help you turn. Without it, steering can be quite a chore. New power systems are electric, but there are still plenty of the old... More