rattling noise on cold start up 3500v6
Recently I noticed a rattling noise coming from under the hood of my g6gt, it sounds like something is loose but nothing seems to be loose. I noticed the noise may be coming from the tenisoner, now the tenisoner has been replaced once on this engine. My question is, is it possible for the tenisoner to make this noise and are these engines notorious for having tensioner problems? These may seem like stupid questions but its kinda got my concerned a little. We have had the car for about a month and it has 63K on it.