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The EGR valve helps your car more efficiently and completely burn fuel by recirculating a portion of your exhaust and running it through the combustion process again. This results in a cooler, more complete burn of the fuel which decreases you car's noxious emissions by prohibiting the formation of some harmful gases.
This is a typical EGR valve. It's easy to clean or replace your EGR valve if your car or truck's performance starts to suffer.
The Basics
The EGR valve helps your car more efficiently and completely burn fuel by recirculating a portion of your exhaust and running it through the combustion process again. This results in a cooler, more complete burn of the fuel which decreases you car's noxious emissions by prohibiting the formation of some harmful gases.
Pros
Cons
exhaust gas recirculation which circulates the unburned particles
in to the combustion chamber to improve the efficiency of engine.
EGR valves are the top reason why most cars do not pass emission tests....