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  1. #1
    Bronze Member
    Join Date
    Sep 2012
    Posts
    95
    Location
    Paragould, AR
    Tractor
    JD 4300 HST 4WD

    Default 02' 4300 won't start

    Used the ole' 4300 to do some snow clearing this past week (not often I get that pleasure here in Arkansas). Everything worked fine. Shut it off two days ago and it sat overnight. Yesterday I sat down in the seat and turned the key. Nothing. Not even an attempt at starting. I made sure my pto was disengaged and that the HST pedals were loose / in neutral position. I put the parking break on (even though I usually never do to start). Still nothing.

    No click at all when turning key from off to run position. Small click from K6 module when turning key from run to start position. That's it.

    Also, (and this may mean nothing at all)... For the longest time my parking break light has stayed on at all times despite my parking break being off. Now the light is off (even when I put the break on) albeit the tractor isn't running, but when the key is turned to the run and the start position the parking break light is not illuminated (and it has been for a very long time). Again, this may be a total separate issue and have nothing to do with not starting. Just trying to give all the information I have.

    I have had the tractor about 3 years and this is the first time for this particular issue.

    Hoping someone can give some advice on where my problem probably lies.

    Thanks!

  2. #2
    Silver Member
    Join Date
    Jun 2007
    Posts
    228
    Location
    Middle of west TN
    Tractor
    JD: LX172, X740, 3520

    Default Re: 02' 4300 won't start

    Have you checked the battery? Sounds like it is dead.

  3. #3
    Bronze Member
    Join Date
    Sep 2012
    Posts
    95
    Location
    Paragould, AR
    Tractor
    JD 4300 HST 4WD

    Default Re: 02' 4300 won't start

    Battery is good. When I bought the tractor it had suffered from the common problem of battery overflow / corrosion that you'll read about in many other threads. I tore it down and replaced the plate that the battery sits on. I then retrofitted a yellow Optima battery. Expensive but by far the best thing I did for the tractor. It was 95% charged showing 12.9v when I tested it yesterday. Terminals are good and clean too.

  4. #4
    Bronze Member
    Join Date
    Sep 2012
    Posts
    95
    Location
    Paragould, AR
    Tractor
    JD 4300 HST 4WD

    Default Re: 02' 4300 won't start

    I didn't remove the battery cables to check but they have zero corrosion and the lights / gauges light up quickly when the key is turned to run position.

  5. #5
    Silver Member samhudson3's Avatar
    Join Date
    Sep 2011
    Posts
    192
    Location
    Central NC, Southern part of Heaven
    Tractor
    John Deere 4300

    Default Re: 02' 4300 won't start

    Do a search in this forum for "thermistor." You'll find several threads discussing similar problems. Good luck!
    Sam
    JD 4300 HST with FEL, bush hog, rear mower, tiller, row hipper, cultivator, post hole digger, blade, and a wish list of more.

  6. #6
    Bronze Member
    Join Date
    Sep 2012
    Posts
    95
    Location
    Paragould, AR
    Tractor
    JD 4300 HST 4WD

    Default Re: 02' 4300 won't start

    Forgive me if I'm incorrect... but wouldn't the thermistor problem still allow the engine to crank... just not start? My engine won't crank. Other than a small click in the K6 relay/module (when turned to start position) and the lights on the console... there is nothing. Thermistor would keep from starting but it would still crank, right?

  7. #7
    Platinum Member Henri88's Avatar
    Join Date
    Nov 2009
    Posts
    718
    Location
    Northern N.B.
    Tractor
    2008 JD 2305

    Default Re: 02' 4300 won't start

    Could be a bad ground. When you turn your head lights are they working? Also, even-thou your battery shows 12.9 volt it does not necessarily mean its good. If you have a load tester that could confirm that it holds its load or a volt meter and turn the lights. Then again maybe you have already try that.
    Henri

    How could you be told I was french?

    Rotary cutter 4' Howse , mid mount mower 54'' , f.e. loader 200CX , tiller RT1150 Frontier , cultivator PC1001 Frontier , middle buster PM1001 Frontier , JD 47'' front snowblower , pallet forks , grass-sweeper , quick hitch Speeco , trailer hitch , cab Jodale-Perry , trailer 16' galvanized Easy-Hauler ,

  8. #8
    Bronze Member
    Join Date
    Sep 2012
    Posts
    95
    Location
    Paragould, AR
    Tractor
    JD 4300 HST 4WD

    Default Re: 02' 4300 won't start

    weather is pretty nasty here right now... and of course the tractor is out in the elements. I haven't done a load test on the battery and I honestly didn't check to see if the headlights were actually on when the dash lit up. I'm going to start pulling fuses and cleaning connections / terminals and see if I can come up with something.

    I've read some old threads that mention a neutral sensor switch that is located under the HST pedals. That may be a place I need to be looking. The tractor was operating perfectly fine and turned off in that condition the day before.

    I pulled the k6 relay (the one making the only small click) at lunch and swapped it with and adjacent relay. No change. Click from same k6 slot.

    I do NOT have any solenoid click with turning the key to run or start.

    I'll check connections... any more suggestions welcome.

  9. #9
    Platinum Member Henri88's Avatar
    Join Date
    Nov 2009
    Posts
    718
    Location
    Northern N.B.
    Tractor
    2008 JD 2305

    Default Re: 02' 4300 won't start

    Don't forget the ground cable connection, not at the battery as you have already check that one, but at the other end. Keep us up to date. Good luck!
    Henri

    How could you be told I was french?

    Rotary cutter 4' Howse , mid mount mower 54'' , f.e. loader 200CX , tiller RT1150 Frontier , cultivator PC1001 Frontier , middle buster PM1001 Frontier , JD 47'' front snowblower , pallet forks , grass-sweeper , quick hitch Speeco , trailer hitch , cab Jodale-Perry , trailer 16' galvanized Easy-Hauler ,

  10. #10
    Bronze Member US American's Avatar
    Join Date
    Feb 2011
    Posts
    69
    Location
    NW Washington
    Tractor
    JD 4320 Reverser

    Default Re: 02' 4300 won't start

    A bad thermistor will not stop it from turning over. Sounds like a battery related issue.
    JD 4320 Reverser R1s w/ 400x loader

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