EGR Control Solenoid Valve
- Start engine and run at idle until normal operating temperature is obtained. Disconnect Green stripe hose from fuel injection mixer and connect vacuum pump to hose.
- Disconnect electrical connector from solenoid valve and apply 9.8 in. Hg to Green stripe hose. If idle becomes unstable or engine stalls, EGR system is operating properly.
- Reconnect electrical connector and repeat step 2). Engine idle should not be affected. If idle becomes unstable or engine stalls, solenoid valve is remaining closed. Replace solenoid valve.