All Other Models

Disconnect Green vacuum sensing tube from No. 2 solenoid valve. Disconnect Yellow vacuum sensing tube from No. 1 water thermo valve. Disconnect electrical connector (Green wire) from solenoid and ground solenoid terminal. Turn ignition on and blow through Yellow tube, air should escape at port. Turn ignition off and blow through hose again, air should escape at solenoid air filter. If valve does not respond as outlined, replace No. 2 solenoid valve.