Redline, I'm not sure we have the same symptoms. I don't have any whining noise and the car is certainly not down on power. In addition, you referenced in post #24 that you had Dinan software and I do not have that. I'm convinced it's either a valve body or module that is causing this issue. Whatever the cause, the transmission will most likely have to be rebuilt or replaced.

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2006 4.8iS Black/Black with custom Audison Voce/Image Dynamics sound
Production Date - 10/05