6.6L Duramax Deisel

I owned a 2003 for a few years. I think that was an LB7 during that timeframe. The biggest drawback was that there were a lot of injector problems and they were very difficult to replace. That situation was improved in later versions of the engine, but some of them had their own problems. My own experience was that it ran great and pulled strong. I didn't particularly like a lot of design features of the rest of the truck. The engine and Allison tranny were flawless for me.