Mopar 4593832AA Valve-EGR

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NOx is a byproduct of combustion chamber temperatures and mixes with ROCs, HC, and sunlight to form ozone and smog. The EGR system reduces NOx emissions by recirculating exhaust gases and cooling the combustion chambers. All engines use an EGR system with PCM, EGR valve, and various sensors. Component replacement involves removing the EVAP purge solenoid valve and disconnecting electrical connectors before replacing the EGR valve and EGR pipe. New gaskets and seals should be used and proper torque should be applied to mounting bolts. V8 engines have similar replacement procedures.

The EGR system reduces NOx emissions by recirculating exhaust gases from the exhaust manifold through the EGR valve and intake manifold back to the combustion chambers, diluting the air/fuel mixture and cooling the combustion chambers.

Component replacement involves removing the EVAP purge solenoid valve and disconnecting electrical connectors before replacing the EGR valve, lower EGR pipe (for 2.7L engine), and upper EGR pipe. New gaskets and seals should be used during installation, and proper torque should be applied to mounting bolts. The EGR system also exists in V8 engines with similar replacement procedures for the EGR valve and EGR pipe.