Intro: A graph of your car’s idle speed shouldn’t resemble architectural plans for a new Cedar Point roller coaster. Once the car warms up to normal operating temperature, it should run in a smooth ...

The idle air control valve (IACV) is a device attached to the throttle body that helps keep the engine of a vehicle running without throttle input, such as when the car is idling in traffic or parked ...

Hearing a rattle as you drive is irritating. What makes it more annoying is that a rattle can indicate a simple-to-fix problem that will cost almost nothing to repair or a significant issue that could ...

One of the questions I am most frequently asked is about idle speed control; idling is too fast, too slow or erratic. An engine might idle too fast because of an intake air leak, but it can be due to ...