this ounds like something I expeience on my 4.8. Whether I am shifting manually or using the auto mode, when I accelerate it actually sounds as if it downshifted, but has not. I was told this was normal in the new engine as the valves adjusted. Does any other 4.8 drivers know what I am talking about? That when you accelerate, it sounds as if it downshifted but its still in the same gear.

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