I was in the process of hooking up the brush hog & left the JD idling & all of a sudden it just quit...just like you turned the key off. It was low on fuel so I thought since it was parked on the hill it may have gotten air in the fuel line so I put a full tank of diesel in it. I bled the lines and still nothing...just turns over. I checked the air cleaner for obstructions...nothing. I checked all the fuses and rebled the lines, even replaced the fuel filter...still nothing. I noticed the hose coming from the top of the fuel tank to the injector manifold was leaking right up at the engine. That's the return line. I cut off the dry rotted fuel line & reconnected solving the leak. I unhooked the fuel lines from the injector pump that lead to the injectors and turned the engine over and no fuel comes out of the pump. Shouldn't some fuel come out of there when the engine gets cranked? Seems to me it would. I reattached that line and unhooked the line leading from the filter to the pump and turned the engine over. Small amounts of fuel squirted out of the pump. That's the wrong way though...that's pumping back into the fuel supply line. That cant be right. Anyone have any other ideas? Id drag the tractor to the dealer if I could get my truck & trailer in there to get it out. What perplexes me is that no fuel comes out of the pump when I turn it over. There should be something coming out of the pump when it's turned over. I cant seem to get fuel back up to the injectors. The tractor is sitting on a hill and the return line is full of fuel because the tank is completely full. Is that causing some sort of lock or something that's not allowing the pump to pump fuel to the injectors? The fuel solenoid is working...or so I think it is...I hear it click when the key is turned on and off. Also I took out the screw on top of the pump and cranked the JD. It builds up pressure and squirts fuel out. I dont get it. I've spent two days screwing with it and am out of ideas. I might mention the tractor has 117 hours on it...so everything is practically new. I bought it in 2002.