I'm getting really bummed here guys, I need some help. One day I'm yelling YIPPEE and probably pissing off my neighbors while working later than I should, the next morning I have a dead tractor in the front yard. Maybe an angry neighbor come to think of it. I'm the 3rd? owner of a JD 4400 and no idea how many hours are on it, pretty sure the hours have turned over or stopped counting. It was working great one day, didn't run it out of fuel or anything, it just wouldn't start the next morning. Here's what I know, which is very little so please be gentle, I'm great at fixing houses and very much the beginner at engines.
The engine turns over, new battery new fuel filter and all the fuel lines are flowing nicely, fuel pump seems to be operating.
I cracked the injector lines on top, thinking there was air in the line, turned the engine over, no fuel came out.
Maybe a fuel solenoid because it's not clicking when I turn the key? Someone said it should click. Before changing that I had a mechanic come by this morning and he ran an electric tester in the plug going to the solenoid and he said it's not getting power so must be a bad relay in the fuse panel or something before the solenoid.
I bought a new fuel relay today, still nothing. The fuses were pretty dirty so I took all of them off and hit everything with a wire brush. No go.
I checked the safety cut-off under the seat, it's been bypassed so shouldn't be the problem, right?
The mechanic is thinking it might be an ignition switch but I'm hesitant to start changing parts just yet. A different mechanic says the injector pump. I'm thinking maybe solenoid, but the mechanic say's it before that. Where do I go from here?
Any help would be much appreciated.
Thanks in advance!