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John Deere 4000 electrical issue
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gbfarmer
Posted 1/12/2019 09:57 (#7239511)
Subject: John Deere 4000 electrical issue


SE MN
Have a JD 4000 that we had repainted and fixed up six years ago and looked to nice to use it much after that. Hasn't started good for the last year or so and got it into the shop and put in new batteries and battery cables on it yesterday. Both the batteries and cables were shot. I checked with my tester and have 13.6 volts at the starter where the battery cable attaches when I ground it to the tractor frame. When I turn on the key the red warning lights (alternator and oil pressure) on the dash do not light up nor do the headlights work and it doesn't turn over. When I hook the battery charger to the post on the starter where to positive cable is attached then the lights on the dash and the headlights work, also when you turn the key to start position it tries to turn over very slow. I know it's not safe, but I did try to jump the solenoid on the starter and there was nothing. I did get the warning lights to come on once for a second with the key, but then they went out and haven't come on since. Do I have a bad relay or something? I thought maybe it was a ground issue at first but then I should get the voltage at the starter that I am. Trying to figure it out before I go ask the service department on Monday. Any ideas would be appreciated. Thanks!
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