Even the novice driver with no mechanical ability knows when there's trouble, and smoke is never a good sign. White smoke from the exhaust can spell big problems with your engine, and the smoke's ...

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 ...

A well-running and adequately maintained diesel engine should produce no visible smoke from the tailpipe. Modern diesel engines equipped with common-rail direct-injection technology have unlocked more ...

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 ...

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 ...