Variable Tumble Control System (VTCS) Shutter Valve Actuator Inspection

VARIABLE TUMBLE CONTROL SYSTEM (VTCS) SHUTTER VALVE ACTUATOR INSPECTION




1. Remove the air hose. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION)
2. Disconnect the vacuum hose from the variable tumble control solenoid valve.
3. Connect a vacuum pump to the VTCS shutter valve actuator.




4. Apply vacuum and verify that the rod moves.
- If the rod does not move, replace the intake manifold.