Transmission shifts well, but when it shifts into OD at about 50mph, it sounds like a bearing is scrubbing or a sound similar to when a waterpump is going out. Shift back to 3rd gear and all is quiet. Moving in reverse, I can hear the same sound. It is getting louder.
Other that this problem, I have been well please with auto. It drives and handles like a dream.
One of the best cars GM Ever made. Too bad they decided to revamp Buick and drop a name plate they've had since the 60's for a different car (LuCerne).
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