Hello all, My MF tractor, (Use to move machines) has developed a problem. It starts fine and runs for five or so minutes. It's RPM's start to taper off over this time period. Then it dies. However it will start back up in just a few seconds. And repeats again and agian. I have done what I think is most of the basics. Changed the filter, boost pump, fuel, cleaned the tank etc. What I did observe is after it shuts down the top bleeder on the injector pump bleeds air, The lower one does not. The appears to be no leakes in the line, (No wet spot anyways). And the injector pump is also dry. How does this air get in there, and how do I keep it from happening again?. I could sure use this thing right about now, A go figure as fate would have it it's not running very good. Over the coures of years as I was just playing with it it never failed me.