Just had mine serviced under warranty due to the rough start. It's interesting because I have a '91 John Deere 770 that starts right up in sub-zero weather and I rarely even use the glow plugs. This 2014 G3038 starts hard in 50 degree weather, even after the glow plugs cycle (I always wait for the cycle to complete). Perhaps some of the difference is due to engine design (JD is direct injection and this is indirect injection), but any modern diesel should start without 60 seconds of low, rough, galloping, smoking idle. Anyway, it's on the way home now from the dealer. The Dealer's service guy was great and he agreed that it did not start right, but he wasn't sure what was wrong with it and the LS rep that he talked to had no good ideas. He said that he tried and some of the other G3038s on the lot didn't start well either (wish I had known about this problem when I bought). Based on this thread, I asked the service guy to replace the fuel filter (28 hours on the tractor) and he did so under warranty. He thought that MIGHT have helped, but he wasn't sure. Other things that he checked were to make sure that the glow plugs were energizing and the timing of the fuel injector. LS rep advised him to tell me to run it to 50-100 hours to see if that fixes the problem and to remind me that there was a 5 year warranty if that doesn't fix it. Basically, they said it probably just needs to break in. Fair enough, I'll try it and we'll see. Presumably, LS will stand behind the warranty if the problem does not resolve.
