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John Deere 3420 cooling
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<blockquote data-quote="Chickcatcher" data-source="post: 7806413" data-attributes="member: 700"><p>I fear its a JD issue looking above. My7430 ok 14th year around 4800hrs last year we had the engine management cutting the power (high temp) which resulted in an engine strip out and injector sorted something thought to be with injectors! this year same warnings and total engine cut out due to high temp dash dial only half way up but temp on side panel way up high 90C+. Radiators all completely stripped out and cleaned, that will sort it, OH no it didn't. engineer visit and ended up with a firmware upgrade that'll sort it (temp since not seen above 91C) OH no it didn't warnings and power cuts latest investigation and code checks indicate its the sensor on the air flow into the Turbo being found too high changed sensor still have the issue. Engineer suggesting that they have had this before and ended up putting a new turbo on, he hadn't heard if the problem have been resolved I would think it was a proper farmer and he traded the tractor for a Fendt lots seem to do that round here.</p></blockquote><p></p>
[QUOTE="Chickcatcher, post: 7806413, member: 700"] I fear its a JD issue looking above. My7430 ok 14th year around 4800hrs last year we had the engine management cutting the power (high temp) which resulted in an engine strip out and injector sorted something thought to be with injectors! this year same warnings and total engine cut out due to high temp dash dial only half way up but temp on side panel way up high 90C+. Radiators all completely stripped out and cleaned, that will sort it, OH no it didn't. engineer visit and ended up with a firmware upgrade that'll sort it (temp since not seen above 91C) OH no it didn't warnings and power cuts latest investigation and code checks indicate its the sensor on the air flow into the Turbo being found too high changed sensor still have the issue. Engineer suggesting that they have had this before and ended up putting a new turbo on, he hadn't heard if the problem have been resolved I would think it was a proper farmer and he traded the tractor for a Fendt lots seem to do that round here. [/QUOTE]
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John Deere 3420 cooling
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