CARS.COM — How can you tell if your car has an exhaust leak? Your ears and nose can alert you to some exhaust leaks, but they may not be able to detect all leaks, including ones that could allow ...

2000 Saab smokes and smellsQ: My 2000 Saab smokes and the guy at the shop says it needs a new timing belt. It will cost more than $500 and I want to make sure that’s the problem. The car runs OK ...