When did they start using the EGR valve?
When did they start using the EGR valve? Since the 1960s, vehicle manufacturers have successfully reduced harmful nitrous oxide emissions with the installation of the Exhaust Gas Recirculation (EGR) valves. What happens when you have a bad EGR valve? The engine will have a rough idle when the EGR valve is faulty because it will remain in an open or closed position. This implies that too few or too many exhaust gases are entering the chamber, and this is why the engine is idling. How often should I Clean my EGR valve? It is suggested that every 50,000 miles you...