J 23738-A Hand Operated Vacuum Pump
The wastegate actuator assembly can be replaced separately from the turbocharger assembly. Use the following procedure to check the operation of the wastegate actuator:
Apply 5 inches HG vacuum to the actuator. The actuator rod and lever should close the wastegate.
With the engine running, the actuator rod should snap back to a closed position. If not, the wastegate actuator is defective and should be replaced. For removal of the wastegate actuator, refer to Wastegate Actuator .