When I first start up my 09 hemi it makes alot of noise. Is this normal or should I have it checked out before my warranty is up. I bought this truck used and did not notice the noise until after it had sat up for few days without driving it.

 

If its cold lifter noise change to a Mopar or a Pure 1 oil filter.Its oil drainback and lifters rattle.There is also a RRT for loose/broken exhaust bolts causing a cold rattle/bing noise.