ChaddyShack has had his Duramax in several times for MAJOR engine problems. They say the first year of a new motor is always a problem. My Ford has 140k and is running perfect. As much as I am a Ford fan I really like the idea that was posted earlier of putting it on a trailer with banners and towing it around town, with your Chebby, in front of your local Ford dealership. That will get their attention I assure you. If your close to North San Diego let me know....I'll go as I am always into some good drama!