I bought my 2011 Dodge Nitro Shock 4.0 brand new. Right away after driving it, I noticed a rough idle. I really didn't think much of this, nor did I take issue with the dealership because I assumed it might just be a spark plug, and it would eventually get fixed under maintenance. I regret not addressing this more aggressively. Fast forward 50k miles. The vehicle has a definite misfire complete with engine light flashing and staying on. The vehicle is now out of warranty based on time, not mileage, so I took it to a friends ASE certified shop. He did the following: Replaced Spark Plugs Replaced all Six Coils Checked Fuel Injectors Cleaned Cylinders (with Sea Foam) Leakdown Test Compression Test And the list goes one... None of these things fixed the misfire, so he put a camera into the cylinder and could actually see it misfire. At this point I am into the diagnosis for $800 and he informed me that he felt it was something big like a cylinder head problem. If this is in fact a cylinder head problem, I was interested in checking to see if Chrysler would cover it even though it's out of warranty. So, I took it to the dealer. Right away they tell me it's a bad fuel injector. I told them that I didn't believe it was, but was willing to let them have their way. I paid $800 and took my Nitro. It misfired on the way home. I took it back to the dealer and dropped it off and told my super cool service writer that I was going to call Dodge Customer Care. I was given a case number by Customer Care and the diagnosis continued. They did everything my friends shop did and came up with the same result..... has to be the cylinder head. They replaced the cylinder head and the misfire continued. The dealer proceeded to replace all the coils and spark plugs again in addition to replacing the O2 sensors and the main computer. The Nitro continues to misfire!!! At this point the dealer mechanics were unable to figure out what the problem was, so Dodge Customer Care sent a Chrysler Corporation engineer out to check out my vehicle. The last I heard from them is that they want to replace the cam shafts. They have had my Nitro over two months now and they continue to keep in good communication with me. They keep saying they are looking in to everything they can do for me because they are sorry it's taking so long. Hmmm.... what might that be? A new Durango SRT? Haha I would love to have input from anyone with a similar situation or a story of your dealings with Customer Care. Thanks for listening to my rant.