Typically, when a vehicle is having issues, you'll get two kinds of smoke from the exhaust — blue or white. Blue smoke is ...

Thick white smoke: Call a tow truck Unlike the wispy white vapor described above, billowing white smoke is almost always an indication of serious engine trouble, and warrants immediate attention.

Even though increased exhaust smoke may be more noticeable when cars are started in the frigid weather, experts caution that white smoke could herald substantial vehicular trouble. Shaun Jones ...