Cummins engine dies and then !!!

prism wrote:
coach quit running and after pulling off to side of road we determined engine was idling but when pressing gas peddle unable to increase RPM's

That to me sounds like the electronic gas pedal is not operating correctly?
I dont think the transfer pump comes into play once the engine is running?
at least thats how i thought things worked?

Heres what little I know about a Cummin's and its fuel pump issues since I had the problem.
The 5.9 Cummin's has two fuel pumps. The first one is what I suppose we are calling the transfer pump. It does in deed run all the time. When the engine is running at full load or idle. The secondary pump is what I heard referred to as the injector pump. Thats the puppy that forces the fuel to the injectors. Very expensive unit.
The Cummin's will run with the first (transfer) pump completely in-operational. The injector pump will actually pull the fuel from the fuel tank to its injectors but at a very reduced rate, not enough to run at road speeds. And some backfiring and some black smoke.
My input is from the experience I had in UT and ended up with at 90 mile towing to replace the "transfer" pump...about a $180 item. Its electrical was completely burnt up and the pump completely inoperational. But I could move at 20 to 30 mph.