Drivers tend to ignore the exhaust pipe until something dramatic happens. A sudden change in exhaust smoke forces attention fast. Color, thickness, and even smell can signal hidden engine problems ...

Exhaust smoke color is one of the fastest ways to spot a sick engine — white, blue, and black each tell a different story. Sellers sometimes clear dashboard warning codes before a sale, but a simple ...

Safety experts recommended Wednesday that the engines on Boeing’s troubled 737 Max airplanes be modified quickly to prevent smoke from filling the cockpit or cabin after a safety feature is activated ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Safety experts recommended Wednesday that ...