I have a Hyundai 780-9 loader. 30 t. its one year old. every time I switch it off for more than 15 min its hard to start, and it runs rough for a minute or two. I think its letting the diesel back to the tank therefore it has to suck it back into the filters every time I start the engine. it has a Cummings engine. anybody got any ideas or a cure. greatly appreciated.
There is a check valve in the system to keep fuel from draining back; it takes a while the fuel filters to fill again.