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 ...

Modern engines contain dozens of sensors and controllers, most of which behave well over the life of the vehicle and never have to be replaced. But every once in a while there’s a bad apple that can ...

Cleaning the idle air control valve (IACV) on your vehicle periodically helps keep carbon and other particles from building up on the valve, which can negatively affect the operation of the car.