Well I went and picked it up this weekend. It was a long trip with snow and airport delays. DSM had van at airport getting to the dealer was not bad. My salesman was less then impressive. Finally saw truck was just like I wanted looked good. Due to weather did not get chance to drive right away. Finished paper work paid my money. Then walked back down the street to get it. Drove off few mins later a knocking type sounds start. I have had a few diesels so I know this sound is not right. Only happens or can only hear when motor under a load. Should have turned back but did not,now have check engine light on and my knocking sound. Gonna try and take it to local dealer probably will be a problem due to not buying from him but we will see. So good luck with yours my thrill is all but gone,hope to get it figured out soon. I will let you all know.