I have a 3410 and the glow plug light does not work. I bought the tractor used, so I am not sure if the light ever worked. I turn the key on for 25 seconds and the tractor starts everytime. If I turn the the key on and start for the first time without waiting, the tractor will crank for a long time. I took the dash out and replace the bulb with a new bulb that does work.