The fiance's car does that as well. 00 grand prix gt, 3.8
Also, hers has a wine to it. Sounds like a roots blower almost, and it is directly related to engine rpm. I was thinking a bearing in one of the engine accys, but i cant find any with play or wear on them. Anyone else had this problem?
Thanks
Oh, and i am curious on price as well for the flush and fill.