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 ...

The exhaust system heats the tailpipe because the exhaust gases go straight from the engine into the exhaust manifold, and the temperature of the whole system becomes pretty high. However, only some ...