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I have a Kohler diesel in 2015 1000 model Polaris ranger.

Customer Question
When I turn the key...
I have a Kohler diesel in 2015 1000 model Polaris ranger. When I turn the key off the engine keeps running for a couple of minutes like its shutting the fuel off but not the actual engine. Any idea of what is suppose to shut the engine down?
Submitted: 1 year ago.Category: Small Engine
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Customer reply replied 1 year ago
Engine family I'd is ekhxl1.37sf1
Serial number(###) ###-####And looks like kgw1003These numbers are found on the engine
Answered in 25 minutes by:
10/25/2016
Technician: Curtis B., Technician replied 1 year ago
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 29,123
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert
Verified

Welcome to JUST ANSWER small engines, let me try to help you !! I don't know it all, but maybe together we can get you a satisfactory answer!

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Technician: Curtis B., Technician replied 1 year ago
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Technician: Curtis B., Technician replied 1 year ago

Page 55 in the service manual shows the Non=return valve, which is what should kill the engine on shutoff.

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Customer reply replied 1 year ago
is that part of the fuel pump?
Customer reply replied 1 year ago
I am guessing it is not working. The only electronics I could find that would shut the fuel down was a wore to the fuel pump. But it would seem this would b a slow shut down if in fact this where I find the shut off return
Technician: Curtis B., Technician replied 1 year ago

No, part of the injection system.

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Customer reply replied 1 year ago
Should i find a wire to that valve externally?
Technician: Curtis B., Technician replied 1 year ago

I really don't know, was looking at service manual my self. Looks to be a vacuum operated link to kill engine.

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Customer reply replied 1 year ago
K i will look tomorrow.
Technician: Curtis B., Technician replied 1 year ago

OK>

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Technician: Curtis B., Technician replied 1 year ago

I see question is still open, did you find problem?

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Customer reply replied 1 year ago
Curtis
I have not found the problem yet. I am trying to figure out still where the line is to kill the engine. Polaris says it is part of the pump. I ordered the part and hopefully will know more by mid week. We tried clamping off fuel hose and "no quick shut down". If I knew what exactly shut it down or which wires it would solve my issue I think.
Technician: Curtis B., Technician replied 1 year ago

OK< thanks, A wiring schematic looks to be what is needed. I suppose Polaris won't send you one?

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Customer reply replied 1 year ago
Naw. I cannot find one online for the diesel either. Polaris just says bring it to them and they are four days behind. Maybe if the part comes in today we can get them to give us something.
Technician: Curtis B., Technician replied 1 year ago

OK>

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Customer reply replied 1 year ago
Thanks for your help. If you have access to a schematic or know where I could get one that would be great.
Technician: Curtis B., Technician replied 1 year ago

No, all I could find was the Koher service manual, and it was vague!

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Customer reply replied 1 year ago
OK if I can leave open the rest of this week that would be great.
Technician: Curtis B., Technician replied 1 year ago

Sure, as long as need be.

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Technician: Curtis B., Technician replied 11 months ago

Question popped up this AM.??? Did you find probelm?

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Customer reply replied 11 months ago
Curtis
We did finally figure it out. So if u hear of this problem again here is the answer from what we learned. This Kohler three cylinder diesel shut off is controlled by a fuel pressure drop when the switch is turned off. This shuts fuel from the fuel line that supplies the three injectors (and three built in pumps). Problem found was a small ball on the #2 injector was missing and the other two were stuck. These balls are the size of an inkpen ball. Located atop of the injector. When pressure drops in the line the ball drops down killing the engine by shutting off fuel to the injector. These were leaking by thus allowing the engine to keep running.Good luck in the future.
Technician: Curtis B., Technician replied 11 months ago

Thanks , so it took three new injectors.

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Customer reply replied 11 months ago
No just replaced the top of one and freed up the other two. A local diesel shop was able to salvage us the parts we needed. Injectors were 500.00 plus per injector.
Technician: Curtis B., Technician replied 11 months ago

OK! Wonder why they stuck?

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Curtis B.
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 29,123
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Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert

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