Hi everyone,
I have a 4.8is with about 45k miles on it. Whenever the transmission shifts when I'm moderately accelerating (usually 2 to 3, 3 to 4) it makes a strange "hooting" sound. It's not a clunk, it sounds more like a hoot. Anyone every had this issue?

Yes, I'm going crazy

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Scott in Cincy
2008 X5 4.8 (wifey)
2009 AMG E63 (Daily Driver)
1997 Porsche 993 Turbo
1968 Mustang GT Fastback -- Resto Project
1969 Firebird 400 -- Resto Project (Trans Am Replica)
1996 Saturn SC2 -- LeMons Racecar!