4440 issue

Mo1032D · Dec 15, 2017

Have a 4440 that is collapsing the lower radiator hose, which in turn starts collapsing small hose going to thermostat. Put new lower hose on it when it did it last fall thinking that was problem since spring was moving inside hose. It started again during harvest this year, so limped it along to finish as it's a main auger tractor. This time it actually collapsed the spring also. New hose came from Deere. Wouldn't think hose would go bad in less than a year, but never know. It does it when run over 1400 rpm's whether it's setting still or running down the road. This has me stumped as tractor never gets hot even when hose is collapsed. Any help is appreciated. Scott

cushman · Dec 15, 2017

I would expect that to indicate a plugged radiator core, not allowing the water pump to take in water, causing excessive vacuum in that hose.

David G · Dec 16, 2017

I would agree, probably plugged radiator.

4440 issue

Mo1032D

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cushman

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David G

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