You’re driving along in your car or truck and suddenly a yellow light illuminates on your dash telling you to check or service your engine. If you’re like most car owners, you have little idea ...

However, if your car shakes when idle ... a gas odor, and a check engine light. If you notice any of these issues, the smartest move is to visit a mechanic as soon as possible.

How to determine whether your car has a loose gas cap—or a serious engine problemThis is what the check engine light looks ...