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What is the purpose of an EGR Valve?

(1999 Ford Taurus)
in Cuyahoga Falls, OH on January 10, 2011
What does an EGR Valve do? What is its purpose?
Displaying 2 answers & 1 comment
Popular Answer
on January 10, 2011
Exhaust Gas Recirculation Valve or EGR recirculates combustion gases back into the engine intake. For more information visit;
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on January 10, 2011
Fernando is correct. But I bet you have a check light on because of a trouble code for insufficient EGR. flow. Good guess. Contact me at
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on February 19, 2011
I have this CLE on my dashboard. I asked my mechanic to scan the code and it was P0401 EGR. He said it needs cleaning the valve due to accumulated carbon deposit. He erased the light the light for me using his scanner.
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