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  1. #1
    Gold Member crazyangel's Avatar
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    Feb 2012
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    329
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    Western New York
    Tractor
    Kubota L5740-HST; Kubota RTV900

    Default RTV900 Engine Temperature Gauge

    The engine temperature gauge on my RTV900 is not working. I have done a basic check of the wires to make sure everything is plugged in and that there is no visible damage on the wires. How can I test whether the problem lies with the sensing element in the engine or at the gauge itself?


  2. #2
    Bronze Member
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    Oct 2012
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    62
    Location
    Belton Texas
    Tractor
    Kubota L3400/ Kubota RTV 900

    Default Re: RTV900 Engine Temperature Gauge

    I am having the same problem, but mine will work some of the time. Still under warranty so may end up going back to dealer.

  3. #3
    Super Member texasjohn's Avatar
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    Oct 2005
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    5,732
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    Central Texas, Jarrell
    Tractor
    Kubota Grand L5030HSTC

    Default Re: RTV900 Engine Temperature Gauge

    Another TBN member had over heaqting problem, gauge not working...here is what he found:

    So my problem turns out to be the temp sensor that screws into thermostat housing. Its what tells the relay to kick fan on. my fan should kick on right at the halfway mark and if i barely tap it it the fan will kick on, as long as guage is above that. Dealer is sending me one under warranty but I'm looking for one in stock so I have it before the long holiday weekend. part number 1g910-83040. Nobody has this item in stock.

    see this thread http://www.tractorbynet.com/forums/a...g-problem.html

    Plykins, is your dealer the one in Temple, or in Austin, or?
    Last edited by texasjohn; 12-08-2012 at 11:53 PM. Reason: add thread link
    Joy is having the tools you need and needing the tools you have!

    Kubota 5030 HSTC, BB, Danueser PHD, LA853 QA HD FEL w JD toothbar, 3pt chisel, 3 pt disk, 6' shredder, Kubota FEL hay spike, 3pt hay fork w carryall, Kubota RTV 1140

  4. #4
    Elite Member whistlepig's Avatar
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    Jan 2009
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    4,267
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    Preble County, Ohio
    Tractor
    Kubota B7800 with FEL

    Default Re: RTV900 Engine Temperature Gauge

    I installed one of these on my Polaris Sportsman 4 years ago. It's deadly accurate. The electric fan kicks on the same temp this gauge registers it to do so. Been trouble free for 4 years now even when soaked with water.

    Polaris ATV Temp Gauge Kit Coolant Switch Illuminated System Quad
    I used to do the Hokey Pokey but I turned myself around.

  5. #5
    Gold Member crazyangel's Avatar
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    Feb 2012
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    329
    Location
    Western New York
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    Kubota L5740-HST; Kubota RTV900

    Default

    Quote Originally Posted by plykins
    I am having the same problem, but mine will work some of the time. Still under warranty so may end up going back to dealer.
    I have this info to help you diagnose:

    Quote Originally Posted by KennyV
    Your sensing element that is screwed into the engine is a variable resistor, it is changed by heat.

    Take the wire off the temp sensor and short it to the engine block, that should indicate hot on the gauge... if it has not then the wiring, gauge or power to the gauge is the problem... if it moves the gauge then the sensor is bad...
    Please let me know how your fix turns out.

  6. #6
    Bronze Member
    Join Date
    Oct 2012
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    62
    Location
    Belton Texas
    Tractor
    Kubota L3400/ Kubota RTV 900

    Default Re: RTV900 Engine Temperature Gauge

    Quote Originally Posted by texasjohn View Post
    Another TBN member had over heaqting problem, gauge not working...here is what he found:

    So my problem turns out to be the temp sensor that screws into thermostat housing. Its what tells the relay to kick fan on. my fan should kick on right at the halfway mark and if i barely tap it it the fan will kick on, as long as guage is above that. Dealer is sending me one under warranty but I'm looking for one in stock so I have it before the long holiday weekend. part number 1g910-83040. Nobody has this item in stock.

    see this thread http://www.tractorbynet.com/forums/a...g-problem.html

    Plykins, is your dealer the one in Temple, or in Austin, or?
    John, I bought it in Taylor, but the guys in Temple said they would have no problems doing warranty work on it.

  7. #7
    Bronze Member
    Join Date
    Oct 2012
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    62
    Location
    Belton Texas
    Tractor
    Kubota L3400/ Kubota RTV 900

    Default Re: RTV900 Engine Temperature Gauge

    Quote Originally Posted by crazyangel View Post
    I have this info to help you diagnose:



    Please let me know how your fix turns out.
    crazyangel, Ill check it out today and let you know.

  8. #8
    Bronze Member
    Join Date
    Oct 2012
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    62
    Location
    Belton Texas
    Tractor
    Kubota L3400/ Kubota RTV 900

    Default Re: RTV900 Engine Temperature Gauge

    Quote Originally Posted by crazyangel View Post
    I have this info to help you diagnose:



    Please let me know how your fix turns out.
    crazyangel, checked it out and no reading on gauge. I also had noticed when it is working, the needle on the gauge will move slightly when you turn the key on. when it is not working the needle does not move. So it must be the gauge, or wiring to it. Will let the dealer figure it out. Thanks for the info!!

  9. #9
    Gold Member crazyangel's Avatar
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    Feb 2012
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    329
    Location
    Western New York
    Tractor
    Kubota L5740-HST; Kubota RTV900

    Default Re: RTV900 Engine Temperature Gauge

    My problem turned out to be the sensor. When I removed the wire and made contact to ground the needle on the gauge shot up to hot. New sensor is less than $25. I love it when a fix is that simple.

    Thanks again for your advice KennyV!

  10. #10
    Silver Member Old Coot's Avatar
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    Feb 2007
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    158
    Location
    Mansfield, Ohio
    Tractor
    Kubota 3130 --- RTV900--- Yamaha Big Bear 4X4--BX2660

    Default Re: RTV900 Engine Temperature Gauge

    I bypassed the temp switch with a rocker switch so I can turn it on or off as needed. The only time mine gets hot is plowing snow. So I just switch it on when I start and off when done. Cost of switch $1.89.
    Last edited by Old Coot; 12-30-2012 at 12:35 PM.

    Yamaha Big Bear--L3130 Kubota--Kubota RTV900-BX2660--06 Corvette--2011 GMC

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