Originally Posted by ToppCat
Just a shot in the dark on this, but how about the seals that fit in the front fender that go back to the door hinge? There's a foam seal that is installed there that quiets things and restricts air flow in that direction. Just have to remove the wheel well skin to get to it and check.
This may be the best tip....Even thou, the whistle sound only came about after a hard acceleration , and vehicle was not stopped, slowed down, nor any doors or windows opened and reclosed...As I'm sure the OP would say Ditto...However, my further investigating on my car, I cruised up to speed, then paddle shifted to lower gears, listening carefully to whistle sound...the eng RPM went up, but the whistle sound remained "constant"...Sooo, It does seem to be only related to vehicle speed...a vacuum leak could maybe ruled out ?...Maybe the front fender seals come loose when vehicle hits a higher speed..In my case...perhaps 80 mph....But would think other members woulda encountered this also...It is strange , that he and myself have both encountered this "immediately" after the hard run ... I am concerned it may be a sound from the Trans....Hope not...! Sorry.. Not trying to Hi jack thread..and still waiting to hear about his trip to his dealer soon...
As for Forumr post...i don;t understand how scalloped tire could suddenly make a sound after fast drive...and be silent prior...at 40 mpg in my case..Scalloped tread has caused a buffeting [concussion] sorta pulsating sound ...Not a whistle...in past vehicles I've owned..!
I'll con't to watch your thread ...to learn whether your whistle sound did indeed go away after tire rotation..!!