Originally Posted by sdaniels34
Does oil pump/ oil weight impact the transmission?
What oil grade (weight) are you running in your V6?
Try using a long scredriver, hose, etc as a stethoscope and probing around (by placing on end on various parts of the engine and the other part on your ear) to find where the noise is the loudest.
$20 says that the dealership techs didn't want to deal with it becasue it is warranty work.
Report back your findings (where the noise is coming from, specifcally) and we should be able to help you better. Otherwise try taking it to another shop for a 2nd opinion. I can't think of anytime when a knocking engine or tranny is normal.