The RTK Discharge and Pump Protection Control Valve works as two valves in one: It brings together a pump protection recirculation valve and a control valve.

How Flow Control Valves Work Flow control valves have a valve stem that moves up or down inside the valve body, causing the needle, or sealing element at the end of the stem, to restrict the flow of ...

Find everything you need for cleaning the idle air control valve (IACV) here: the best products, why it's important, and how to do it.

The EGR in a diesel engine plays a significant role in your vehicle's overall performance, but what is it exactly? Here's everything you need to know.

A bad idle control valve can cause a multitude of issues with your car. Check out the Drive’s Garage Guide to identify the signs of a bad idle air control valve.

How does it work? Car manufacturers tend to have their own names for variable valve timing technology. For example, Toyota uses a ‘VVT-I’ (Variable Valve Timing with Intelligence) system whilst Honda, ...

How do ball valves work? A ball valve is a quarter-turn valve that uses a ball with a hole drilled through it to control the flow of media.

Variable valve timing and lift can dramatically change an engine's power output and efficiency. Here's how they work.