I changed the fuel filter on my L245DT and she won't start. I always make certain that the tractor has warmed up to operating temp before I begin the process. I pre fill the new filter ,remove the old and immediately install the new filter. After a failed attempt at starting I bleed all of the injectors by cracking them loose where the fuel line connects to the top of each injector as I turn the tractor over making certain that there is good fuel flow. The engine starts and stalls immediately. I'm sitting here scratching my head and out of ideas.