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Almost forgot, it's a 4.7L V8. Ticking is still there. Manytimes at idle sitting in a drive thru I can here it tick too. Another dealer said it is a moisture drain hole in the exhaust.....

Hi, I have a new 2007 Grand Cherokee and upon acceleration it makes a ticking noise that sounds exactly like a valve lifter. Dealer says it's normal and is probably the catalytic converter material. It driving me nuts and would like to eliminate it. This ticking is most noticeable with a...