Have you ever been sitting at a light or accelerate to pull out of a parking lot and notice a cloud of exhaust behind your ride? It can be a little unnerving, because car exhaust smoke can actually ...

White, wispy exhaust smoke when you start your car on a cold day is usually perfectly normal as long as it goes away after a few minutes. But what causes that exhaust smoke when the temperatures are ...

In addition to indicating a possible problem, smoke from the tailpipe means dirty emissions. Most states and some municipalities mandate periodic tailpipe-emissions testing. If your car is emitting ...

The cause of "white exhaust smoke syndrome" could be as innocuous as water in the exhaust pipes condensing and boiling off or as serious as a cracked head or block. You can narrow down the cause by ...

Holly has a degree in Medical Biochemistry from the University of Leicester. Her scientific interests include genomics, personalized medicine, and bioethics.View full profile Holly has a degree in ...

John Paul, AAA Northeast's Car Doctor, answers a question from a reader who has to decide whether a needed repair is worth the money. The Car Doctor answers a question from a reader who has to decide ...

Toxic chemicals that develop from car exhaust, smoking and backyard grilling might increase your risk of developing the autoimmune disease rheumatoid arthritis, a new study suggests. These chemicals ...