would check the heater bypass valve and make sure that is not open part way,does it get hot on propane? also make sure the hot and cold taps are shut off in all the shower(s)
Years ago a friend and myself where driving a van type rv, and broke down on the side of the highway, and decided to open up the side door and sit down and have a beer. we where both into our second beer when the police showed up and told us we could...
the new diesels do have a lot more emissions on them for sure. the def is just part of it. I work on a bunch of Mercedes sprinters and they are not cheep to repair, or maintain. Some if they sense any sort of problem they go into a derate mode (limp)...
If it has sat for quit a while, best bet is to pull the carb off and get a container of the really good carb cleaner from napa or auto zone.. the one I got was marked professional use only, as it will dissolve plastic and rubber parts and wear rubber...