Jekyell-in hyde changed the engine? on a 2010? hmm I bought my 2010 last week, (Sept 10) with 10,000 miles on it... I noticed it ticked at start up, at the dealership I notice it in my garage "I am happy to live with it", if you guys say its normal..
I have a 2001 2500HD 6.0L with 140,000 Miles and it ticks and clatters and hauls my 8000lb RV trailer easily and I love it
I have a 2007 5.3 Suburban and its very quiet... ...