5.7L Engine
Combustion temperatures are reduced by exhaust gas recirculation (EGR). This reduces tail pipe emissions. The ECM calculates the incoming air based on input signals from the mass air flow sensor and regulates the exhaust gas recirculation quantity depending on engine load and speed.
The electronic EGR valve and solenoid assembly (2) is attached to the front of the right cylinder head. An exhaust gas routing tube (4) connects the EGR valve to the intake manifold.