Answered

What does an EGR valve do?

A. Opens at speeds above idle on a cold engine.
B. Opens at speeds below idle on a warm engine.
C. Opens at speeds above idle on a warm engine.
D. Opens at speeds below idle on a cold engine.



Answer :

GinnyAnswer

Final answer:

An EGR valve opens at higher speeds on a warm engine to reduce harmful emissions.


Explanation:

An EGR valve (Exhaust Gas Recirculation valve) is a component in a vehicle's engine system that opens at speeds above idle on a warm engine. It works by recirculating some of the exhaust gases back into the engine cylinders to lower combustion temperatures, reducing the formation of harmful nitrogen oxides.


Learn more about EGR valve function in vehicles here:

https://brainly.com/question/44367861


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