1. Remove the service hole cover. (See EGR VALVE REMOVAL/INSTALLATION [LF].)
2. Disconnect the vacuum hose from the variable tumble solenoid valve.
3. Connect a vacuum pump to the vacuum hose.NOTE:
Verify that the variable tumble shutter valve actuator rod moves using a mirror.
4. Apply vacuum and verify that the rod moves.
If the rod dose not move, replace the variable tumble shutter valve actuator. (See VARIABLE TUMBLE SHUTTER VALVE ACTUATOR REMOVAL/INSTALLATION [LF].)
Vacuum
kPa {mmHg, inHg}
Rod movement
Below —2.7 {—21, —0.9}
No operate
Above —33.4 {—251, —9.89}
Fully pulled