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JD5420 fuel problems.


 
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jacksun65
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Joined: 23 Jun 2012
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PostPosted: Sun Jun 13, 2021 12:54 pm    Post subject: JD5420 fuel problems. Reply to specific post Reply with quote

I am working on a 5420 cab model. since the neighbor got this tractor they have had problems with the fuel system. I changed the filters three times last year including the inline fuel strainer. last week I changed all the filters again cleaned the hand primer and they said the tractor was running better than ever. then yesterday they were running the disc mower in some rough ground and it quit. I went and checked it today the fuel filter was half full the fuel strainer was clean the check valve was good. Fuel filter had some crud in it but not bad. Fuel tank was full. could not get it to fire. I am going to add an electric fuel pump and change the lines on it. One thing bothers me is there is no loud click from the fuel shutoff never has but has worked, Can I change the shutoff solenoid or does that take special tools
 
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J.Wondergem
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PostPosted: Sun Jun 13, 2021 1:15 pm    Post subject: Re: JD5420 fuel problems. Reply to specific post Reply with quote


Are you sure there isn't something floating around on the bottom of the fuel tank, covering up the fuel line hole?
 
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wore out
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PostPosted: Sun Jun 13, 2021 1:38 pm    Post subject: Re: JD5420 fuel problems. Reply to specific post Reply with quote

CVPost-jacksun65 wrote:
(quoted from post at 13:54:39 06/13/21)


Is battery voltage getting to the fuel cutoff solenoid?



This post was edited by wore out on 06/13/2021 at 08:23 pm.

 
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Tx Jim
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PostPosted: Sun Jun 13, 2021 2:43 pm    Post subject: Re: JD5420 fuel problems. Reply to specific post Reply with quote


Is fuel tank venting? Have you checked for good fuel flow from tank to inj pump?
 
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lfnel
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PostPosted: Sun Jun 13, 2021 2:48 pm    Post subject: Re: JD5420 fuel problems. Reply to specific post Reply with quote

Is the Diesel fuel they're using clean, free of water and reasonably fresh?
 
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jacksun65
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PostPosted: Sun Jun 13, 2021 6:33 pm    Post subject: Re: JD5420 fuel problems. Reply to specific post Reply with quote

I pulled the line coming out of the tank and got good clean fuel, Had fuel up to the filter no blockages. The Standyne pump shutoff solenoid has power to it but it is under the cover so I would have to get to it to replace it. I will get fuel flowing to the injection pump first and then check the solenoid more.
 
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