I have a 2016 Challenger 5.7 shaker car that I bought new and only has 1500 miles on. I have been hearing a tick when I first start it and the other day after sitting for over a week it was really loud to the point I was getting ready to shut it down. However it went away after a few seconds. It is almost like a lifter(s)is bleeding down and pumping back up after start up. Oil level is where it should be.

Anyone else been experiencing this noise?