Do you need idle control valve?
Do you need idle control valve? Its purpose is to control and regulate the engine idle speed, increasing and decreasing it as necessary to keep up with operating conditions. Most idle control valves come in the form of a motorized valve or motor that is mounted somewhere on the vehicle's intake manifold. Do all cars have idle air control valve? In the not-so-distant past, nearly all cars had an idle air control valve (IAC). It's a pretty simple device that controls idle speed by managing the amount of air bypassing the throttle plate. These days, most new cars have electronic...