Here my story, i did notice before sometimes a whistle sound like a turbo.

Last week i took my car from the dealer

They changed the air filter, change oil and rack and pinion for the second time.

And now i can clearly hear a ''turbo like" sound more audible around 5000 rpm

and i can hear also like a vaccum sound clearly coming from the left side of the engine in my opinion.

I canno't reproduce the noise on P or N position

What do you think of that ?

My transmission was changed about a month ago , or 2000 miles ago