You can guesstimate with some accuracy what might be wrong with your car just by using your nose. If you’re hip to what various smells suggest. Let’s have a look – or rather, a whiff! * Rotten egg smell – This is indicative of a problem downstream – in your car’s exhaust system. The egg smell derives from sulfur, and is byproduct of the combustion process. To be precise, it is a byproduct of an overly rich air-fuel mixture, which in a modern car is often caused by a problem with the oxygen sensor located in the exhaust piping upstream from the … Continue reading What’s That Smell?