Originally Posted by 7.3X
You in fact have a wastegate that is what you are hearing. Every 7.3 I have ever owned or been in do it to some degree some more some less. The hypothesis being the internal spring becomes weak with age and heat cycles. Mine has done it seemingly forever and I still make great boost.
Do not worry about it it will hurt nothing.
If it is a concern I am in Hartland bring it over and we will look at it.
I'm worried about loss of economy and power. I actually like the sound..