Been told by whom? What's their experience with the 3800 & s/c's? Like everyone has said, it's probably just the coupler, I had the sound too when I got my GTP.

Its a $30 fix... To change the snout oil and the coupler. Go for it, will take about an hour to do. Worst thing is you wasted $30 and an hour of your time, best thing is you saved big $$$