DeVille V8-4.6L VIN Y (1998)
EGR Valve: Description and Operation
EGR Valve Flow
EGR Valve Assembly Sectional View
DESCRIPTION
The EGR Valve regulates the amount of exhaust gas fed to the engine. This mixture is dependent upon the height of the pintle above the orifice in
the base of the valve.
OPERATION
Engine vacuum draws exhaust gases through the EGR feed pipe into the throttle body spacer where they mix with the incoming air charge and are
distributed equally to each cylinder.
