Hello fellow Eco diesel owners. I am new to the forum. My truck has 7700 miles on it and is in the dealership waiting on a new flex coupling for the exhaust. We had an exhaust smell in the truck for a while and the dealership confirmed it is a leak under the hood. Evidently there is a service bulletin on this and there are no parts available so I am in a rental until they find a part. Has anyone else experienced this problem?