My older (2000-2002 I think) 6x4 diesel gator won't crank. I had an oil leak (oil pressure sender) and used a pressure washer and gunk to clean and help find the source of the leak. The Gator started and ran fine for a few days. First sign of problems was dash lights flickering and no crank. I could hear a buzzing sound but it was dark. I cleaned the plug that goes into the gearbox (neutral safety I'm guessing) and she started right up. Today the dash lights are fine but the relays are buzzing down by the fuel filter. Two relays are identical and have been replaced. Still no crank. The 3rd relay seems to be for the glow plugs but I'm not even cranking so I don't think that relay is the problem. I did have the battery out while I was pressure washing so perhaps bad connection at the battery?