About 30 months ago I was looking for a used diesel 2500HD or 3500. I found a 2011 2500HD that was extremely well maintained with about 35000 miles on it. I got a good deal on it. BUT - I WISH I had done some research on 2011s first. The truck was great for a few months. Then it started to develop a noise on acceleration. I kept reading about an egr cooling hose that was out of place. Got tired of the noise plus it had a check engine light on by that time, so I took it to a great Chevy dealership in Eagle River, WI. They gave me a loaner. Got a call later and the first thing the service manager asked was how I liked the loaner. I asked why. She said "we're going to have your truck for a while" - at least a week. It had multiple codes, including one for the turbo and one for the exhaust fluid system. The bearings were gone in the turbo (yes - I regularly change the oil). They replaced the turbo & exhaust fluid tank. While they had it they found the front pump seal was leaking on the transmission. They said they did over 10K in service work while they had it. It has been fine for about a year but now I have another engine light. #8 glow plug is bad. And - the other day I got a message that the exhaust fluid quality was poor. NO - I use good exhaust fluid and I have never forgotten to put the cap back on. GM did extend the warranty on the DEF systems to 125,000. Of course before I got it to the dealership - the light went off. I had 2004 Duramax - zero problems. I had a 2008 Duramax - zero problems. In reading other forums I see tons of complaints about the 2011s. I have about 75,000 on mine now. My question is: who else has had 2011s, did you have problems, and if you did - did you ever get it to be a good reliable truck again? It just seems like about every time I get to a point where I feel its a good truck again - something else comes up. I have been considering going illegal and removing all the emissions crap, running 5" exhaust, and going with the EFI live system. If I keep my foot out of it - it will get better mileage anyway. Thoughts and comments?