An EGR (Exhaust Gas Recirculation) valve is very important for the exhaust system in a vehicle. The valve has been in use since the 1960’s in the US as it helps in increasing efficiency of vehicles and reducing pollution as well. However, whenever the EGR valve is clogged or not working as it should, engine performance can go down. So any time you experience rough idling or valve knock, you should have the valve inspected.
What Is the EGR Valve?
Simply put, the EGR is meant to reduce emissions from the car. It reroutes some of the exhaust gases which are emitted by the engine into the combustion chambers. This effectively reduces temperatures in the combustion chambers.
The EGR valve is an important component in the exhaust gas recirculation process as it helps to prevent exhaust valves from overheating, which can accelerate their wear and tear. The EGR valve therefore helps maintain the exhaust system at full capacity and increases the longevity of the internal combustion process.