Your engine feels calm at a stoplight because a hidden idle system keeps fuel, air, and spark in balance. That quiet ...

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 ...

Engine cylinders can misfire due to problems with the ignition system, the fuel system, air and compression, or sensors and ...

That old habit of letting your car idle for five or ten minutes in the driveway on a cold morning feels caring, but modern engines don’t see it that way. Thanks to fuel injection and thin synthetic ...

Once upon a time, it was considered good practice to warm up your engine by letting it idle for a little while before setting off. These days, however, people tend to just jump in the car and go. Is ...

For years, warming up a car in sub-zero temperatures on a cold winter morning has been almost like a ritual. Motorists ...

It seems harmless to let your car sit and run to warm up, but here’s why experts suggest avoiding this old habit.

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 ...