Tractor was bought new in 2015, only has 300 hours of time. Replaced canister filer,
inline filter, and drained fuel tank. Filled with fresh No 1 diesel. Bled out canister and verified fuel is being pumped to the canister filter. Loosened injector fuel line and got no fuel being pumped out of injector pump. Removed fuel line from lift pump and got good fuel flow out of lift pump. This is a 2014 model and has no mechanical linkage to engine from throttle lever.
Everything is controlled by the ECU. If I let the tractor sit for a day or two, and try to start it, it will start and run for a minute and then engine shuts down , moving throttle lever has no affect on engine.
Good news, I went to Hoven Equipment and talked to the mechanic about my problems. The dealer is going to cover the DPF under the exhaust emissions warranty, they ordered it today, hopefully it comes in by Friday. The online part catalog list the whole DPF list $5181.30. I'm just concerned that they are telling me that I'm not running the tractor hot enough to complete the regenerative process. Is there any advice you can give me to help prevent this from happening again?
Believe it or not that's the going rate for a "muffler" nowadays.. Perkins is 5500.00 also.. Get a service manual for that thing.. its explain the DPF system & the maintenance.. There is such a thing called "a forced regen" that should be done.. The automatic regen should have happened long ago on your machine.. IT reads the carbon deposits in the system[muffler/cat conv] & burns them out for emission standards.
Your dealer can expain it all to you.. especially if he's covering it under warranty.. they probably don't wanna do THAT to many times, if ya know what I mean..
Very glad you did the diagnosis & found your problem.. Happy tractoring.. TPG
Generally speaking, for all Diesel engines to perform a proper regen, you need to have sustained higher rpms. I would recommend throttling it up a little higher during use, try to keep it above 1,800rpm (medium throttle) even if you don’t necessarily need that much power.
Secondly, depending on the cetane number of your fuel, you will produce more or less soot (particulate), this can be improved by using a good cetane improver. To give you an example, I ran a test with cetane improver mixed in with regular pump diesel at a rate of 250:1, and over the course of two month test (one baseline month and one test month) the truck (Volvo) saw a 66% reduction in the number of regens with the treated fuel compared to non-treated. That’s pretty significant.
Cetane improver should be selected based on the % of 2-EHN (2-Ethylhexyl Nitrate) in it. This can be found in the product’s SDS or MSDS. 2-EHN is the only ingredient in there that improves cetane number. Some manufacturers use different names to intentionally obscure the 2-EHN to prevent direct comparison. For comparison Opti-lube Boost has 70% 2-EHN, and PowerService DieselKleen+Cetane has less than 10%.
Theres an obscure company that sells it also> DTECH
Buddy of mine put it in his cummins powered truck & said, it drives like a race car.. lol
Marc> love the 1st hand comparison..66% IS amazing.. its info LIKE THAT that keeps me coming back. Well that, & being able to help folks out.. makes me sleep better at nite knowing I saved somebody a fist full of money..
I was originally trying to show the fuel economy benefit for land transport (which is a lot harder to demonstrate) and this was a side benefit that we discovered.
If you are able to do a forced regen, get the tractor up to operating temperature, set the throttle above 2,000rpm and start the regen. I would give it a full 10 minutes or more, and not less than the time it takes for all the white smoke to stop.
I see no news since Monday. I see in the original post the problem began with a lot of black smoke which indicates overfueling. Later on you say plugged DPF which also goes with overfueling. I have 3 DPF equipped with DPF and have had one problem. During winter the crankcase ventilation system froze causing pressure to build up blowing the turbo seals. Lots of black smoke, rough running, etc. The oil making it into the induction system produced the black smoke and unburned crud plugged the DPF which was replaced under the regular warranty but would have been covered under emissions warranty if my regular warranty had expired. I do not own a NH so I don't know how your tractor handles regens but mine are all controlled by the ECU. If a regen is needed it will raise the engine speed if needed. I am only bringing this up because your original description of the failure did not fit lack of fuel. Remember crankcase oil making its way into the induction system is then fuel that will quickly plug the DPF as it doesn't burn well at all.
Did not read all this but could the regulator valve in the diesel pump be stuck? I note somewhere he said that the engine was not responding when he activated the throttle.
It has been a hectic month. Still working o n the tractor. Pulled the DPF and it was clogged and was successful in cleaning the DPF and reassembled everything. Still having problems. Engine will not go above 1800 rpms and then started smoking. Toke the DPF of and found it was contaminated with oil, I'm assume ng the turbocharger is the source of my problem. Anyone know of a good turbocharger repair shop, because the New Holland list the part as $ 1800 .
No it is engine oils, I have been keeping an eye on the oil level, the level has gone down almost a quart and runs out of the front of the DPF with the front of the DPF removed. Oil is dripping out of the front of the DPF housing when the engine is running.
I would confirm it is the turbo first before you start throwing money at it. If oil is making it through to the DPF, then the intake will be full of oil. You likely have a positive crankcase vent ducted in right before the turbo which could be spewing oil also, especially if you have a bad piston ring. It’s not uncommon to have up to a teaspoon of oil at the turbo inlet, but there shouldn’t be copious amount of pooling oil anywhere in the intake.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Tractor Forum
367.4K posts
79.8K members
Since 2003
A forum community dedicated to all tractor owners and enthusiasts. Come join the discussion about farming, lawn maintenance, restoration, modifications, classifieds, troubleshooting, maintenance, and more!