LS XG3032 Regen/dpf problems

[5030]

Kubota had problems with its B3350 (i think that was the model?) but quickly figured it out.

Yeah, they quit selling it. That had to do with the 'reformer' Rather than changing the thermostat, try placing a sheet of cardboard in front of the radiator, much simpler. Just keep an eye on the engine coolant temperature.

 

[jaydee325]

While cross posting in multiple threads is generally frowned upon, I think in this case it is warranted. The DPF after treatment system that uses active regeneration is used across multiple brands and there is posts of similar problems.

So, I suggest you also post this in the Parts and Repairs forum to see if that gives you some additional exposure and help.

I also found that on later LS tractors (XR31XX series) you could manually force a regeneration (search YouTube). On the XG30XX series, it requires plugging in a computer. Unforunately, you're stuck with needing a dealer. However, if you have an independent diesel repair shop near by, by all means reach out to them and see if they can provide any help.

 

[jaydee325]

Just ran across this. Hope it helps.

Link

The YouTube ads are certainly annoying, so just be patient, on my computer, the presentation on LS Tractor Regeneration does play.

 

[5030]

I watched the YT video and I found it interesting that the commentator claimed that the engine was very fuel efficient. I don't consider Any t4 final engine to be fuel efficient.

 

[spruce Deere]

5030 has a point,

Definitely with the 'regen' presses all is lost with fuel efficiency. Supposedly save fuel over 50 hours of operation just to burn off saved fuel for epa appeasement...

What is the measure for fuel efficiency when in regen?

Home run for the oil companies and the epa, that's the measure.

Less fuel burned, less pollution right? I'll bet my 07' jd 790 in 50 hours of same load of operation will burn less percentage of fuel for hours ran then my 20' xr3140 LS with its 'regen' at the end of the 50 hours...

The whole dpf, def clean diesel act is a hog wash sham.

 

[5030]

The whole dpf, def clean diesel act is a hog wash sham.

All brought to you by college educated people at the EPA that don't now much of anything except to destroy the efficiency of the diesel engine. Why I'll never own a T4 final engine.

 

[RjCorazza]

Just couldn't resist that dig, could ya. Crap like that is what makes these sites so aggravating. But then, that's why you do isn't it. May your 'yoti run forever and you never need help.

He was being much kinder to Kubota and the B3350 debacle than I would have been.

 

[deezler]

Just couldn't resist that dig, could ya. Crap like that is what makes these sites so aggravating. But then, that's why you do isn't it. May your 'yoti run forever and you never need help.

My dude, I didn't mean anything personal or insulting by that. Just pointing out that your frustration shouldn't be with the EPA in this case, because the principles of DPF implementation are fairly straightforward and easily engineered to work smoothly by other manufacturers. But yeah if I hear about more and more DPF regen problems specifically with LS tractors/engines, I will start advocating for newbs here to avoid LS. Because the problem you are having is complete BS and frankly it makes me angry. At LS. I was trying to empathize, sorry if it came across wrong.

My Kioti isn't perfect, it needed a dealer visit for a new air control valve and my front axle leaks a bit. Thankfully covered fully under warranty.

5030 - my Kioti 35 HP T4 engine with DPF is just as efficient as my old Mitsu 30 HP zero-emissions diesel was. Both ~120ci 3-cyls. Doing a DPF regen every 4 hours will definitely hurt your fuel economy, but every 50 hours, it's basically negligible.

 

[deezler]

You guys aren't wrong to have doubts about the intelligence of decision and policy making at the EPA. Seeing the new emissions regulations kill the fuel efficiency of HD pickup trucks and also smaller passenger cars has made me pretty angry over the past 20 years.

No one wants (or should) to breathe particulates, so I do sort of understand why they forced DPFs upon us all. But seriously, the regen thing is not a big deal and it can be made reliable for hundreds of thousand of miles. For example today at work I am testing the new "baby Dmax" 3.0L i-6 from GM, which easily nets 30+ mpg in a full size pickup. It regens often and you can't hardly ever notice it. Seamless and well calibrated.

What ticks me off more is the EPAs incessant focus upon NOx (oxides of nitrogen) that are not a greenhouse gas but rather a contributor to local smog and acid rain. For those of us who don't live in smoggy LA, it's barely an issue. Yet the ever tightening restrictions upon NOx emissions have forced manufacturers to intentionally prevent more efficient combustion in the engine cylinder itself. Hot, efficient combustion produces more NOx, so we have to cool the combustion with dirty EGR, or shift the injection timing just to avoid peak combustion efficiency. Not to mention DEF (diesel exhaust fluid) injection into urea traps. It's a clusterF%^& of engineering just to spray piss into your exhaust and lower the tailpipe NOx...

 

[ROUSTABOUT]

It might be waiting for the coolant to reach a certain temp before starting the regen process. Being that its winter, probably not getting hot enough. Try working the tractor hard, high revs and working that engine.

How many hours on your tractor?

I'm not sure about bypassing the DPF, and I don't think thats the issue. If it were plugged up, you should be getting a dash error. Could be the injector is blocked, but again, throwing parts at it in hopes of fixing it, is not ideal. Without these stupid computers, the DPF system is actually pretty simple.

Change thermostat each fall. Partially cover radiator when extra cold out. That will mane tane operating tempuralture