What is an EGR valve?
The EGR valve is a small component, invented to allow the flow of exhaust gases into the intake manifold in controlled amounts. It is a simple valve that closes and opens as needed.
The EGR valve has one job to do. Its role is to either open and direct exhaust gases into the combustion chamber or to close and keep the gases from entering.
When your car engine starts, the valve becomes active and remains in a closed position, barring the flow of exhaust gases.
Once the en... read more