Mountaineer AWD V6-4.0L VIN K Flex Fuel (2003)
EGR Electronic Vacuum Regulator Solenoid: Description and Operation
EGR VACUUM REGULATOR SOLENOID
EVR Solenoid
Test Graph
EGR Vacuum Regulator Solenoid Data Chart
The EGR Vacuum Regulator Solenoid (EVR), (Figure 90) is an electromagnetic device which is used to regulate the vacuum supply to the EGR
valve. The solenoid contains a coil which magnetically controls the position of a disc to regulate the vacuum. As the duty cycle to the coil
increases, the vacuum signal passed through the solenoid to the EGR valve also increases. Vacuum not directed to the EGR valve is vented
through the solenoid vent to atmosphere. Note that at 0% duty cycle (no electrical signal applied), the EGR vacuum regulator solenoid allows
some vacuum to pass, but not enough to open the EGR valve.
