Mine ticks like crazy at idle. I am a professional engine mechanic so I am extra sensative to noises and things. I WILL ONLY use Mobil 1 fully synthetic 5W20 im my hemi. Anyway, the ticking probably wouldnt bother most people but I hear it and am learning to ignore it. I know there are some intricate parts in there so I just chalk it up to a new sound coming from new parts. Mine is pretty quiet once I get rolling, even beside curbs or walls. I reciently had what I think was a catalytic converter problem that made a lot of noise while running. Did that for 4 days and on the 5th when I was to take it to the dealer... it quit and has not made a peep again. I'd suggest you go to local auto parts store and buy a mechanics stethascope and listen around.
05 Grand Cherokee Limited 5.7 Hemi 265/65/17 Revos, K&N
HEMI CLUB MEMBER #10
1998 ZJ Special Edition 2wd- Traded
1991 XJ 2.8 2wd Sold