My 03 Ram has had a tick since new .
When I asked about it early on the service dept said they all do that . I said that is all fine and dandy but I want to know if its a lifter / rocker or exhaust leak noise ! No response...
My 02 Ram which isn't a hemi (it's a 360 or 5.9 as they like to refer to them as) did that since new. Now has 182,*** miles on it. I asked the same question and was told it was a check valve in the emissions system. ?? Still does it.