I just noticed that I have a crack in my whisper lid.Small and at the back, near the tabs.Maybe coming from there.I will repair it and see if that eliminates the problem.
Jay

 

Im totally stupid on this subject, just had a thought.. I know I have heard a little motor running under my hood from time to time and I was told its a pump to help build up vacumn.. Well whereever that "bottle" is under the hood thats holding all the vacumn, what if its releasing pressure?? I know it acually works the other way around, you build vacumn at idle and loose it at WOT, so thats why it doesnt make sense, even to me.. but at the same time I dont know crap about all the computer stuff going on under the hood, so maybe its just getting too much vacumn built up and having to release it??? Feel free to laugh at me for my retarded idea, but hey, its a shot in the dark from someone with no knowledge of this stuff

 

Was driving around with tees off today and was able to make the noise on demand.Was cruising slowly and turned the A/C on and there was the chirp.Turned off and back on, chirp again. Everytime.Now I have to take WOT blast with A/C off and see if it happens.In my situation, I would be leaning towards A/C related.

Jay