Problem with Starting New DK4510

[radios1]

it's hard to believe the ECU controls the starter solenoid!. for what purpose?.. I'd say you have a corroded connection in the starting circuit, starting from the ignition switch through the safety switches, to the solenoid.. check the battery voltage, though..

 

[DieselBound]

Basic voltage drop tests should always be the first thing checked.

A bad diode in an alternator can end up messing things up: over-voltage to the ECU AND the battery (both of which, in the OP's instance, have been replaced because they were or were thought to be bad- and if an alternator problem wasn't caught then one can expect any new ECU and battery to suffer problems again).

Unless one knows how things are controlled via the ECU one cannot state one way or another whether the ECU has some sort of primacy over the starter solenoid. Depends on the programming. One should be able to jumper the solenoid to check starter (and engine) cranking, though only IF one is competent enough to ensure that they aren't going to damage something in the process.

 

[Highgear]

So your running out of time for any lemon law to take advantage of . Make Kioti replace the tractor ! You will never have peace of mind .

 

[radios1]

So your running out of time for any lemon law to take advantage of . Make Kioti replace the tractor ! You will never have peace of mind .

I have to agree with that, apparently, any fixes they do won't last, but if they can stretch this out past the warranty period, they'll have it made, because then YOU will pay for the repairs, sadly..

 

[Coyote machine]

I have to agree with that, apparently, any fixes they do won't last, but if they can stretch this out past the warranty period, they'll have it made, because then YOU will pay for the repairs, sadly..

Maybe your 'deere' experience has been what you are writing about, but I can assure you this is NOT how Kioti does business. The OP's issues are well documented, I'm sure, and though the dealer has not been able to fix the problem to date, doesn't mean they wont.

To the OP: here is a way to get your tractor fixed. Meet with your dealership owner and ask him to bring in the zone rep right away. Tell the dealer owner politely that you want the tractor repaired to your satisfaction, ASAP, and you want to know exactly what their process has been to date to repair it, every detail of what has been done.
Report back what they tell you here.
The Kioti guys here on TBN have worked in numerous situations, (too detailed to share in this thread), to get difficult issues resolved for many Kioti owners over the 9 years I've been on TBN.
Forget the demand for a new tractor for now. ALL manufacturers have a warranty period during which their obligation is to repair the machine, NOT to replace it because it is not working properly. Kioti IS working to fix it and will, though it may not be as fast as you would like, obviously.

In the meantime, lets review what we think we know about your repair to date. No start condition, tractor to shop. Replaced ECM and then found a 'problem' with the battery. You, the OP surmise the tech who last worked on it left the key on and drained the battery down, and it wouldn't start. 'Maybe' they replaced it with a new battery, or not?
We think they again replaced the ECM and then gave the tractor back to you.
Now after it working for several weeks? it is now dead again.

Here's what I'm thinking, based on what I believe is the case so far.
IF the tractor sits for any amount of time between uses, the battery may have a transient drain that lowers the voltage enough to make it hard or impossible to start. It may read what you think is adequate voltage for it to start; but have you had a VOM on the battery terminals while cranking the engine? And if so, what voltage is it showing before and during cranking?
When you have no click or starter noise, what voltage is the battery showing?

Now, disconnect the battery cables from the battery. If you have a charger, charge it to full charge. Meantime, clean the cable ends especially where they clamp to the battery posts. Clean all posts and cable ends until you have shiny metal. Also check where the ground cable is connected to the chassis/frame. Make sure it is metal to metal and tight. Reinstall the clamps tightly to the posts and read voltage. Try to crank/start the tractor, while observing voltage. Either battery cable can, and sometimes do go bad, due to corrosion or other actual internal wiring issues. Sometimes moving the ground or positive cable with one's hand will help indicate a faulty cable. Best done when the machine is NOT running, then see results when trying to crank the engine. Report back results.

There is no way three ECMs are all faulty. Your factory one, the second, and assuming they tried a third; and your original problem still exists....:confused2:

So there is some other problem, a transient voltage leak over time, draining your battery; a wiring harness issue, (broken, frayed, chewed wire(s), or a defective relay or connection to same, etc.
The only way to properly troubleshoot intermittent problems is to start at the beginning and work forward throughout the electrical system. The start point is the battery. Then on through the wiring harness, stopping at the ignition switch, fuse block, relays, ECM and cruise modules, and to the solenoids at the injection pump, (if not common rail type) and starter. Lockouts like PTO switch and seat, if equipped, and range selector position switch.
The logical progression through the above will find your issue.

All replacement tractor chatter is irrelevant and a waste of energy at this time. Any brand could have the issues you're having- it's NOT specific to Kioti.

 

[radios1]

every time the ECM was changed, the tractor worked fine.. for a while.. the OP has a brand new tractor, this should NOT be happening to that.. also, read the original problems he had..

 

[Highgear]

So Coyote Machine - I think if that was your NEW Tractor you would be singing a different tune ! So you want OP to do this check that , waste day after day on a tractor he can't use ! Kioti should step up to the plate - give the man a new tractor - then donate the Lemon to a High school shop to work on . They can write it off there taxes . After 10 years they can haul it to a scrap yard - story over !

 

[radios1]

So Coyote Machine - I think if that was your NEW Tractor you would be singing a different tune ! So you want OP to do this check that , waste day after day on a tractor he can't use ! Kioti should step up to the plate - give the man a new tractor - then donate the Lemon to a High school shop to work on . They can write it off there taxes . After 10 years they can haul it to a scrap yard - story over !

else they can continue temporary fixes until the warranty is up!.. this is why we have the lemon law!.. car manufacturers have been doing this same thing for many years!..

 

[Coyote machine]

every time the ECM was changed, the tractor worked fine.. for a while.. the OP has a brand new tractor, this should NOT be happening to that.. also, read the original problems he had..

I've read this thread from end to end several times, not that its any of your concern. If you consider the OPs tractor 'fixed' because replacing one part 'made it work for a while', you're sadly mistaken. You're further mistaken thinking Kioti, or any other brand, is going to throw him a replacement tractor without going through the universally accepted warranty process that the owner agreed to when he bought it. There is no lemon here, and the sooner you guys grasp that the better for the OP.

So Coyote Machine - I think if that was your NEW Tractor you would be singing a different tune ! So you want OP to do this check that , waste day after day on a tractor he can't use ! Kioti should step up to the plate - give the man a new tractor - then donate the Lemon to a High school shop to work on . They can write it off there taxes . After 10 years they can haul it to a scrap yard - story over !

Story definitely NOT over. The owner won't be wasting 'day after day' by becoming an advocate for his situation. His dealer has not served him well so far, and he needs to become active in the process of getting the repair done right and actually fixing the problem. All the talk by you guys giving him false hope that Kioti will just swap out his tractor for a different one is just blowing smoke up his butt. Kioti, nor any other brand is under any obligation to do anything other than find the appropriate solution to this tractor's issues. You guys should go read the actual warranty the tractor owner agrees to when they sign the paperwork at purchase time. It's on their web site. I guarantee that remedies do NOT include free replacement tractors in the boilerplate legal agreement.
And I would be doing EXACTLY what I am advising the OP to do if my tractor were his. You guys want to see what I've done over the last 9 years on TBN to assist Kioti owners, go read my 7,660 posts and see what reality looks like.

else they can continue temporary fixes until the warranty is up!.. this is why we have the lemon law!.. car manufacturers have been doing this same thing for many years!..

Focus now, this is NOT a car, and its NOT a lemon tractor. It is an improperly diagnosed machine that needs to be thoroughly gone through, starting with a skilled technician who knows electrical diagnosis and troubleshooting techniques.

The other thing that would be helpful to helping the OP would be for him to give more details about how and how often he uses his tractor, is it located far away from his home, etc. This info could make a big difference to our understanding of why the tractor behaves the way it does.
Story continues......:thumbsup:

 

[ritcheyvs]

Is there any chance of finding an electrical schematic for this tractor? I have not commented on xx10 issues because I have no technical data on these machines and don't know how they differ from the earlier models. I guess there are some benefits from owning an old tractor.