A car overheating in traffic but not at highway speed almost always has a cooling system problem involving airflow rather than coolant volume. At highway speed, air flows through the radiator ...

While it’s normal for a car to be idling high when it’s first started, if the idle doesn’t drop to normal after a minute or two, something’s probably wrong. That initial temporary high idle, which is ...

A used car can look flawless in a dealer’s lot lighting and still carry thousands […] ...

A 2025 Ram owner’s 6th Gen nightmare includes "limp mode" scares and a surging engine that defies the brakes. Is Stellantis’ Hurricane I6 rollout a safety disaster? Here is the full report for Ram ...

Why does my 1994 Mazda 929’s engine intermittently rev or surge when I first start it? This could be something to do with the engine’s idle-air control valve which plays an important role in making ...

You might be relying heavily on your engine hours and overall mileage to determine when to perform maintenance, but you should pay attention to idle hours, too.

A truck idles when its engine runs without moving the vehicle. Trucks idle regularly throughout the course of a haul, and more than one million long-haul heavy-duty trucks idle during rest periods ...