My dad purchased a new 08' Cummins a month or so ago. It has been to the dealership three separate times for an issue with the EGR vavle. First time he got a check engine light, they had it for a three hours and didn't find anything wrong. Second time the check engine light came on again, they had it for a three or four hours, they told us they cleaned it and said it was fixed. The third time it smelled like burnt wiring in the truck along with a check engine light, they replaced it according to the recall I assume. They had the truck for about three days while they waited for parts to come in. On his way down here last weekend, the light came on again for the fourth time. He is planning on taking it in this afternoon. I was curious of anyone else had such problems. Also, what do you think about claiming it to be a lemon?