Question about John Deere 420,1020,2010,2020,2510,2520 Tractor Float

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Jd gator overheating

Just started smoking from the top of the radiator, thought at first the water pump, or clogged radiator. To check the thermostat I removed thermostat and ran without it. No change. Flushed radiator, and checked to make sure fluid was moving through the water pump. Next noticed that the battery was dead also. Figured a short somewhere was affecting both the cooling system and battery. Contacted JD mechanic for advice. He thought maybe the relay was dead.(the fan to cool the radiator was not turning on.) Tried new relay with no avail. Now think it may be themperature sensor. Can these short out and do you suggest any more tests? Thanks a million.

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My thought is that you may have a burned out temperature sensor on your radiator. You can find this by simply looking for a plug on the radiator that has a wire chassis connected to it. these things can burn out rather easy and it could have been effected by being hit by debris or other objects that could have caused the sensor to short out. Replace the temp sensor. Usually located near or at the bottom of the radiator. Hope this helps.

Posted on Apr 05, 2017

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I would fix it. Put a new gasket on thermstat housing.

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