Calif. B2000 Models
- Disconnect EGR solenoid valve-to-water thermo valve vacuum tube from solenoid valve and connect an additional piece of tubing.
- Disconnect vacuum amplifier-to-solenoid valve vacuum tube from solenoid valve. Disconnect electrical connector from solenoid valve.
- Blow through additional tube connected in step 1). Air should pass through valve and escape at amplifier-to-solenoid valve port. Connect battery power to solenoid valve terminals and blow through hose again.
- Air should pass through valve and escape through solenoid valve air filter. If valve does not respond as outlined, replace EGR solenoid valve.