DeVille V8-4.6L VIN Y (1998)
The bobbin and coil (solenoid) assembly is encapsulated to maximize reliability, to seal the coil from the environment, and to prevent movement
of the coil and terminals. Inside the solenoid (bobbin and coil) assembly is an armature assembly, consisting of a pintle and valve assembly, two
seals, retaining washers, a seal spring, an armature spring, and a bearing. The valve pintle shaft is sealed from the exhaust chamber by a bearing. In
addition, an armature shield, held in place by a compression spring, deflects exhaust gas from the shaft and the armature. The base adapter and
base plate make up the base assembly.
The PCM controlled EGR Valve offers more precise EGR flow metering than a back pressure or digital type valve and superior emission control
and driveability.