I had a 2011 gc overland hemi 4x4, did the same fish bite crap. I traded it in on a 2012 gc overland hemi 4x4, same thing. I,ve gotten the same speal from its normal to the fix in feb. It still does it with no fix available. I put a aftermarket chip on and it seemed to help some but its still there. Let me just tell you...CHRYSLER does NOT care! Call all you want, I already have. With the number of gc they have sold and the rate they are still selling, this minor annoyance is dust on a frog's butt. No car manufacturer cares, until law suits happen or the government gets involved. I've already been down the lemon law path with a 98 dodge ram, and it was not worth it. I hate to be negative. The only way to sting chrysler is to never buy another chrysler and convince others not to buy a chrysler. I really wanted a new wrangler in a year, never again will I buy another chrysler product.
Both of my gc knock when cold, sounds like a diesel. The 1st burned 3 qts of oil between 5000 mile oil changes. The transmissions shift horribly. All this is considered normal per chrylser. I bought the lifetime warranty with the 2012, but what good is it when they can't fix anything? This weekend in the ga mtns, driving uphill maybe 1/2 mile, something was overheating or burning. I could not see any smoke but it smelled similar to burnt brakes, I did say I was going uphill, not down, so it was'nt the brakes. Twice, it did this. ???? I've already lost $1000's with the trade in, taxes, and interest so I'm stuck with this huge disappointment.