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[rickaren]

OK I have not found anyone else in any Forum that seems to have the same issue that I do at "High RPM" under full-out acceleration, around 5K RPM and up. I had hoped that eliminating the low speed "Whistling Noise" with the newly designed head gaskets would also solve this issue. Sadly it did not. It appears that the head gaskets only are a cure for a much lower RPM noise. Wife said it is a screaming noise not a whistling noise anyway. With the windows down and radio off, at times when engine is hot it is so loud that you can not even hear the engine! I checked in about Factory Fix on 07s replacing the serpentine belt and tensioner but that addresses a taping noise. No tapping noise here.

Goes back into shop tomorrow to address this issue, plus also the malfunction check engine light came on Monday. I doubt that this is related to the screaming noise, but that would be great, if it is.

Dealership Service Department is very supportive, thus far. I would feel better if I could find someone with the same complaint. Anyway will report back and hopefully this whole issue and any resolve will help others. This is what this thread is all about.