I'm wondering if the noise I'm hearing is normal, it only occurs on cold starts usually only notice it in the morning when I leave for work. To me it does not sound healthy as it sounds like something is rattling bad under the hood. The car is at the dealer right now getting some interior rattles and the coolant connector recall taken care of. I told them about it and they are claiming its normal. The loaner ex-t they gave me does make the noise slightly but no where to the degree that mine does.