Close

Exhaust Gas Recirculation (EGR) System

By Andy Y, September 24, 2008

The exhaust gas recirculation (EGR) system recycles a small amount of exhaust gas from the exhaust system and mixes it with the intake manifold air going into the combustion chambers. The addition of this inert (or non-combustible) exhaust gas limits the peak combustion temperatures to a range that is below 2500° F, where the formation of nitrogen oxide (NOx) is known to occur.


Key Component - EGR Valve

The exhaust gas recirculation valve (EGR valve) recirculates a portion of the exhaust gas back into the combustion chamber, which helps your vehicle produce fewer oxides of nitrogen, a major pollutant. More >>


Additional Key Parts

EGR position sensor, EGR cooler, EGR solenoid


 

No comments yet...

Sign in to comment

Related Questions

See what others have asked about this, or visit the Questions page to ask your own question.
egr valve
Will a bad egr valve cause multipul misfires in random cyclinders and the car to stall on a demanding takeoff?
EGR valve
Can you remove the egr valve and the truck still run good