Hi, new here. We have a 2002 773G with 366 hours, at about 300 hours it started doing something new. when you try to start it, you turn the key to on and then have to wait about 2 minutes for the gauges and hour meter to get power and then it will start. I don't beleive it has to do with the glow plugs as it happens any time of year and when the engine is hot. If you start it then shut it off and try to restart, it will take about 2 minutes to restart