Originally Posted by 07VTRex
THE Fluttering sound IS NOT BAD. You simply need to know how all these parts work, and what their function is so you can understand what is going on. hopefully that cleared something up, and you learned something today.
+1. Back in the day people were adjusting their waste gate actuator arms on TD04's to try to get rid of flutter... Then people realized the fluttering sound was normal and was part of the system controlling boost. It was joked then that people would be loosening their waste gate arms to try to get flutter.