One of the emissions control systems designed to combat both of those issues is the exhaust gas recirculation (EGR) system. As the name implies, EGR systems are responsible for recirculating exhaust ...

The terms liquid recirculation and liquid overfeed are sometimes used interchangeably and refer to the practice of delivering a greater rate of liquid refrigerant to the evaporator than evaporates. So ...

So what is the car icon with the counter-clockwise circular arrow button for? That's called the air recirculation button, and ...