Skaford - 9/22/2014 10:10 2008 JD 8530... Running fine then heard a slight grind under my feet or there about.... Tractor has ivt and stopped immediately but didn't die. I noticed that I had lost hydro to raise openers on air seeder. I killed the tractor while I got out to take a look but couldn't find anything wrong. After a few minutes the tractor will turnover but not start. Any ideas? Could it be a injection pump failure? Would that effect hydro? Would the tractor still run til I turned it off? Any ideas please? What's an injection pump cost?