CK30 suddenly died-won't start

[MWB1564]

Well, here's the story. Yesterday I was about to lift something with the bucket and the tractor suddenly died just like I turned the key off (no I didn't accidently bump the key). It then started right back up so I didn't think anything about it. A few minutes later it did the same thing and would not start again. It would crank forever but just not fire. The first thing I noticed was I was not hearing that loud click/knock from the fuel shutoff solenoid when I turned the key. I have had to take my ignition switch apart before and clean the contacts so I did that again. They didn't look bad at all so as I suspected that didn't help. Thats about as far as my knowledge goes as far as troubleshooting. I'm pretty sure the fuel solenoid is not opening but I don't know exactly where its located or what to look for next as far as it being an electrical or mechanical problem. Can someone tell me what to check next? Thanks.

 

[Roadworthy]

It does sound like your fuel solenoid or the wiring powering it. If it lacks a separate fuse you can try following the fuel line from the tank to the fuel pump to locate it.

 

[Rebeldad1]

Havnt looked on mine but isnt the solenoid commonly located on the injector pump?

 

[justman777]

Check your fuses first to make sure they're all good. A crank no start on tractors is likely a fuel delivery issue (simple things first), so you're on the right track. Like RoadWorthy said, you can typically trace the fuel line to the the fuel filter and beyond to the fuel solenoid and pump.

 

[MWB1564]

Check your fuses first to make sure they're all good. A crank no start on tractors is likely a fuel delivery issue (simple things first), so you're on the right track. Like RoadWorthy said, you can typically trace the fuel line to the the fuel filter and beyond to the fuel solenoid and pump.

Thanks, that makes sense. I didn't just suddenly lose compression so the only thing left is fuel. I'll try to locate all the fuses and look at them. I also read on another forum that the fuel solenoid has a 70 amp relay that can go bad? I'll have to figure out how to locate and test that. I'm waiting on a break in the rain hopefully today.

 

[justman777]

All of your relays are typically on the front of the tractor, right above the battery and radiator. I haven't found any that are located elsewhere...at least not on my tractor. You should be able to find it out by swapping one of the other relays and turning the key to the "on" position. The one that "clicks" is likely your fuel solenoid relay.

 

[MWB1564]

All of your relays are typically on the front of the tractor, right above the battery and radiator. I haven't found any that are located elsewhere...at least not on my tractor. You should be able to find it out by swapping one of the other relays and turning the key to the "on" position. The one that "clicks" is likely your fuel solenoid relay.

I swapped the two 70 amp relays and i have the same result. Is there a particular fuse I should be look for or at? I'm not aware of any in the fuse box under the dash that would associated with fuel delivery. I could be wrong. Or perhaps a in line fuse somewhere?

 

[justman777]

I think you should try the keep it simple approach first. If it's starving for fuel, you could check to see if it's getting fuel first. Pull the fuel line going to the filter and see if fuel flows freely. If not, you have a line restriction or something in the tank blocking the fuel flow. If it does flow freely, then move on pull the fuel line past the filter to see if it's getting past the filter. If not, you may have a clogged fuel filter. If it does flow freely through the filter, then follow the line to the fuel pump and pull it right before it gets to the pump. If it's making it that far and flows freely, then your issue is possibly the pump or the fuel stop solenoid.

Take a look at this post and see if it helps:

https://www.tractorbynet.com/forums/kioti-owning-operating/255565-ck30-injection-pump.html

 

[MWB1564]

I think you should try the keep it simple approach first. If it's starving for fuel, you could check to see if it's getting fuel first. Pull the fuel line going to the filter and see if fuel flows freely. If not, you have a line restriction or something in the tank blocking the fuel flow. If it does flow freely, then move on pull the fuel line past the filter to see if it's getting past the filter. If not, you may have a clogged fuel filter. If it does flow freely through the filter, then follow the line to the fuel pump and pull it right before it gets to the pump. If it's making it that far and flows freely, then your issue is possibly the pump or the fuel stop solenoid.

Take a look at this post and see if it helps:

https://www.tractorbynet.com/forums/kioti-owning-operating/255565-ck30-injection-pump.html

I'm getting fuel all the way down to the injector pump although I'm surprised that fuel doesn't flow very strong out of the end of the hose even when I'm turning the engine over. There is a steady little stream but I expected it to gush out. Maybe its not supposed to. I've got it into the garage and cleaned up all around the injector pump. Later today I'll take the solenoid off and see if the plunger operates in and out while detached from the pump. If it does then I guess I'll have to assume the pump is bad.

 

[DieselBound]

Verify that you're getting power to the solenoid. No click would suggest that you're not getting power (or the solenoid is bad). If need be one can always jumper power to the solenoid: research before trying it!

I'd also look to verify that you're not sucking in air from some place. (fuel filter, lines- perhaps a line got snagged a bit and now has a crack [one can get air incursion while not getting fuel leaking- air molecules are smaller than fuel molecules]).

 

[MWB1564]

Verify that you're getting power to the solenoid. No click would suggest that you're not getting power (or the solenoid is bad). If need be one can always jumper power to the solenoid: research before trying it!

I'd also look to verify that you're not sucking in air from some place. (fuel filter, lines- perhaps a line got snagged a bit and now has a crack [one can get air incursion while not getting fuel leaking- air molecules are smaller than fuel molecules]).

I dont think I'm getting power to the solenoid. I put the voltmeter pins on the two little contacts inside the plastic connector off the solenoid and theres nothing. Reversed them and still nothing. And the key is on. I know the relay works because that same relay was taken off the starter side and it worked to activate the starter. I see no frayed wires anywhere. This makes no sense.

 

[justman777]

Have you tested for power at the relay? Should be easy enough to do. Also, one of the contacts may be power and the other ground, but I'm not sure. Try your DVM black (ground) lead to a known good ground and the red (power) lead to one of the contacts on the solenoid.

 

[MWB1564]

Have you tested for power at the relay? Should be easy enough to do. Also, one of the contacts may be power and the other ground, but I'm not sure. Try your DVM black (ground) lead to a known good ground and the red (power) lead to one of the contacts on the solenoid.

I confirmed 12 volts going to relay but still nothing on the connector going to solenoid. I tried every configuration and multiple spots on the frame for a ground. Someone mentioned jumping the solenoid. That sounds like a good next step to confirm if the solenoid works or not. Is there a certain way that has to be done?

 

[justman777]

I think you're on the right track with it being electrical. It you're not getting any power to the solenoid, I'd suspect a power issue with the relay. Can you confirm power coming FROM the relay? From what I recall, you should have 3 hots on the relay---one to power the relay (small wire), one for the incoming power (heavier wire) and another for outgoing power (heavier wire). It'd be best if you could figure out which wire was your "outgoing" power to the solenoid, and test that for power. You may have to poke it with your meter to test for power.

You've confirmed you have power to the relay. I'd forget about the solenoid until you can confirm you're getting power THROUGH the relay. Make sense?

 

[justman777]

I neglected to mention that you could also test your relay by pulling it. The individual blades should be numbered on the bottom. If you search online for a typical 12 volt relay wiring, blade 86 should be your power source signal wire (energizes the electromagnet in the relay) and blade 85 should be your ground. If you hook up 85 to a ground source and tap 86 with a 12 volt power source, it should audibly click. No click means the relay is dead. It could also mean you don't have your testing wires hooked up correctly, but i'm presuming you've already verified 12 volt power and a ground.

 

[i7win7]

I'm getting fuel all the way down to the injector pump although I'm surprised that fuel doesn't flow very strong out of the end of the hose even when I'm turning the engine over.

On my Kubotas the solenoid is a fuel shut off solenoid, it doesn't click until key is shut off. Could dirt or something be holding the solenoid in cutting off the fuel?

 

[MWB1564]

I neglected to mention that you could also test your relay by pulling it. The individual blades should be numbered on the bottom. If you search online for a typical 12 volt relay wiring, blade 86 should be your power source signal wire (energizes the electromagnet in the relay) and blade 85 should be your ground. If you hook up 85 to a ground source and tap 86 with a 12 volt power source, it should audibly click. No click means the relay is dead. It could also mean you don't have your testing wires hooked up correctly, but i'm presuming you've already verified 12 volt power and a ground.

I can hear and feel the relay click, plus when I swap it with the starter relay, which is identical, it works to run the starter. I thought that would confirm that the relay is good. I'll still try to test it with the volt meter after the sun comes up but I have my doubts. I'm really anxious to know how to put power directly to the solenoid and hear that thing working so I'll know the problem isn't likely beyond that in the IP. Is it as simple as touching a wire from the battery to a contact on the solenoid?

 

[DieselBound]

This might be of help:

https://www.tractorbynet.com/forums...st-no-start-fuel-post4120692.html#post4120692https://www.tractorbynet.com/forums/kioti-owning-operating/335091-dk40se-hst-no-start-fuel-post4120692.html#post4120692

I've never had a need to test thusly, in which case I cannot state with confidence on how to do this: but, it seems fairly straight forward, in concept.

 

[justman777]

I can hear and feel the relay click, plus when I swap it with the starter relay, which is identical, it works to run the starter. I thought that would confirm that the relay is good. I'll still try to test it with the volt meter after the sun comes up but I have my doubts. I'm really anxious to know how to put power directly to the solenoid and hear that thing working so I'll know the problem isn't likely beyond that in the IP. Is it as simple as touching a wire from the battery to a contact on the solenoid?

Can you take a picture of your fuel solenoid connection and post it up? I'm showing a 3 pin connector to the solenoid---one each for start, run, and ground.

 

[MWB1564]

Can you take a picture of your fuel solenoid connection and post it up? I'm showing a 3 pin connector to the solenoid---one each for start, run, and ground.

This is the connector. There isnt enough room to take a picture of the connection on the solenoid itself.