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  1. #1

    Default John Deere fuel solenoid

    Having trouble with a JD4500 fuel cut off solenoid when the key is turned the engine spins but won稚 start. Removing the solenoid and turning the key the plunger goes in but then comes back out, but if I push it in it stays in and it works ok for the rest of the day. Can anyone help its driving me nuts.

    Thanks in advance Ian

  2. #2

    Default Re: John Deere fuel solenoid

    Seems like if it would pull the plunger in that it would stay in. Pull the wire loose and check for how much voltage it getting thru. Maybe some corrosion?

  3. #3
    Advertiser kennyd's Avatar
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    Jul 2003
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    12,211
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    Westminster, MD
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    John Deere 4110, 455

    Default Re: John Deere fuel solenoid

    Quote Originally Posted by thekingoftonga View Post
    Having trouble with a JD4500 fuel cut off solenoid when the key is turned the engine spins but won稚 start. Removing the solenoid and turning the key the plunger goes in but then comes back out, but if I push it in it stays in and it works ok for the rest of the day. Can anyone help its driving me nuts.

    Thanks in advance Ian
    Welcome to TBN

    If you are lucky, then the problem is the thermister on the on the back side of the fuse panel. there was a lot of talk about this years ago...do a search on the term "thermister" for some good reading...all the mid-framed 4x00 tractors had them.

    Here is one thread of many I found: Thermister
    KennyD
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  4. #4
    New Member
    Join Date
    Feb 2013
    Posts
    1
    Location
    Robesonia, PA
    Tractor
    John Deere 4500

    Default Re: John Deere fuel solenoid

    I found that fuel was seeping back in behind the solenoid plunger & added a fiber washer to the plunger to help limit the fuel from seeping into the solenoid. I too have gone through solenoids, checked relays, thermisters & voltages through the years, & this seems to be the resolution to the problem, at least in my case.

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