I have a 2001 ram diesel.It was running great,as ususl,then all of a sudden it stopped.I kept turning the key on and off and it would start and run for a min. or two then quit again.I took it to the shop and they put the new pump in the tank and a new pump just before the filter. Now I have power to the tank pump from the front wheel,the wiring harness plug, but nothing from the plug up.They have worked on it for 2 days now to no avail. I would greatly appreciate any advice that I can pass along to them. Thanks, Russ