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  1. #1
    New Member
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    Apr 2011
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    John Deere 5103

    Default John Deere 5103 injector solenoid fuse blown

    New to forum and really first problem with 5 y/o 5103. First failure to start in 5 years and suspected air or bad fuel. Changed fuel filter and bled lines and after no luck starting, checked fuses and found injector pump fuse blown. Replacement fuse also blew upon attempt to start. Does anyone have any ideas?

  2. #2
    Administrator
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    San Diego, CA
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    Default

    Welcome to TBN.
    Muhammad Chishti
    Administrator

  3. #3
    Platinum Member
    Join Date
    Sep 2010
    Posts
    594
    Location
    Virginia
    Tractor
    5210 MFWD

    Default Re: John Deere 5103 injector solenoid fuse blown

    Please review this thread as it may address your problem ie bad thermostat. It looks like you have the same engine as the 5310, but double check with jdparts on the part number.

    Please let us know if this was the problem.

    http://www.tractorbynet.com/forums/j...urns-over.html

  4. #4
    Super Member CompactTractorFan's Avatar
    Join Date
    Jul 2010
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    7,957
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    Pennsylvania
    Tractor
    Kubota BX25

    Default Re: John Deere 5103 injector solenoid fuse blown

    Welcome to TBN!!! Hope you get your problem fixed.
    Kyle - CompactTractorFan

    Kubota BX25 w/R4's (23 hp, 17.7 PTO hp), Loader, Backhoe, 60" Mid Mount Mower, Cyclone Rake Z-10 Lawn Vacuum, CountyLine Carryall, Ferris 48" Walk-Behind Mower, Honda 21" Walk-Behind Mower, Mighty Mac 4" Chipper/Shredder,
    2000 Dodge Intrepid, 2012 Ford F-150 EcoBoost

  5. #5
    New Member
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    Apr 2011
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    John Deere 5103

    Default Re: John Deere 5103 injector solenoid fuse blown

    Thanks JD5210 - I unplugged the connector leading from the injector pump solenoid to the thermostat, replaced the fuse and guess what-- It started right up. So, it is the thermostat or the cold start switch that is in the thermostat housing. I will going to JD for parts tomorrow. Thanks for the great help.

  6. #6
    Elite Member Kyle_in_Tex's Avatar
    Join Date
    Oct 2002
    Posts
    4,044
    Location
    Giddings, Texas
    Tractor
    JD 4310,JD5420

    Default Re: John Deere 5103 injector solenoid fuse blown

    Quote Originally Posted by Mahoneybee View Post
    Thanks JD5210 - I unplugged the connector leading from the injector pump solenoid to the thermostat, replaced the fuse and guess what-- It started right up. So, it is the thermostat or the cold start switch that is in the thermostat housing. I will going to JD for parts tomorrow. Thanks for the great help.
    If you don't live in a cold climate, you don't even need this. I think they cost about $28 dollars or so.
    Men, don't wear boxer underwear if you have to mow a bumpy field, liberal men don't have to worry about this.

  7. #7
    New Member
    Join Date
    Apr 2011
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    Tractor
    John Deere 5103

    Default Re: John Deere 5103 injector solenoid fuse blown

    So maybe the problem is the cold start switch and it would be safe to operate with this disconnected?

  8. #8
    Platinum Member
    Join Date
    Sep 2010
    Posts
    594
    Location
    Virginia
    Tractor
    5210 MFWD

    Default Re: John Deere 5103 injector solenoid fuse blown

    I would go ahead replace the part. If the problem continues, then maybe not. Why make the engine and starter work harder then they have to.

    Since you are/maybe going to JD for the part consider purchasing the summer fuel conditioner. The summer conditioner small bottle (ty26784) is under $10. It amazes me how easy my tractor starts up and no smoking.

    Thanks you letting me know this fixed problem.

    http://www.visaevolution.com/dati_si...5-3029-ENG.pdf

  9. #9
    New Member
    Join Date
    Mar 2012
    Posts
    1
    Location
    enter, al
    Tractor
    john deere/5301

    Default Re: John Deere 5103 injector solenoid fuse blown

    same problem today saw this thread and it was my cold start switch ... thanks

  10. #10
    jhl
    jhl is offline
    New Member
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    Apr 2012
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    Location
    Orange, Texas
    Tractor
    John Deere 5103

    Default Re: John Deere 5103 injector solenoid fuse blown

    Can anyone tell me if the cold weather switch and thermostat come as one part or as separate parts? Also how hard was it to change out this switch?

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