John Deere 9570RT DPF issues | 8400R CAN bus is Down | 9560RT air throttle valve repair
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- Опубліковано 1 жов 2024
- In this video, I go look at a John Deere 9570RT with aftertreatment codes, repair an 8400R with a failed CAN bus, and repair a 9560RT air throttle valve. Get ready for some more adventure as I go from service call to service call!
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So true about what you said pertaining to the level of knowledge required to be a good tech in the ag or automotive world today. From the ability to interpret what the customer complaint is to being able to reproduce it, diagnosing it and fixing it. So much time goes into all of this. I may spend an hour just looking up theory of operation and looking at wiring diagrams if it is an unfamiliar vehicle or circuit so that I can intelligently tackle the problem before I ever even open the hood.I'll bet your diagnostic process is much the same. Love your videos! Keep up the good work!
Please don't let people criticize or belittle your skill level. I was a Master Tech for over 30 years, I have over a hundred factory certs and after market certs. People who belittle modern day techs, especially diagnostic techs who do computer, electrical, network, CAN bus have no clue what is involved. I was also a diagnostic tech, I even ended up studying computer science at UC Berkeley extension to help me better understand the networks on vehicles etc You are a great Technician, you do everything the right way and you are humble as well.
Dude, the fact that you have to work with all the different systems (electrical, hydraulic, diesel or gas engine, mechanical, HVAC, and more) on dozens of current production machines and hundreds of previous generation machines that do things in entirely different ways is a high bar. Just knowing how to identify the actual root cause of the problem takes a lot of knowledge and experience and anybody who claims otherwise is very foolishly mistaken.
I enjoyed! I got 52 years as a truck mechanic, was a guru with electronic engines up until regeneration. Now I go get the kids to hold my hand.
It’s a shame today the so many just want to criticize. I have found that with every modern equipment, vehicle, furnaces, literally everything, that it’s diagnose and change s part because the electronics boards are often built into the part. Great channel and great content as usual.
Thanks for another great video ZK. It was interesting and enjoyable.
ZK you are one extremely talented technician. The diagnosis work you did on this video was way over the top. This modern day equipment is wonderful but, but, but when it goes wrong, you need someone like ZK. The days are gone where the farmer can work on his equipment like tractors and combines.
ZK the work you did on these units today was ever so interesting. The work you did to track the problem was so technical. I found the video so very interesting and a great learning tool. A real eye opener that if you do not have the skills wait for ZK.
About it for now. You take care and be safe.
Looking forward to the next video.
Thanks for everything ZK.
Appreciate the filming you did to show what it takes to figure out the problem.
The Iowa farm boy.
Steve.
Greetings from Donegal Ireland 🇮🇪,
Great work as always Zeth ,mechanics /technicians are greatly unappreciated for the amazing work they do ,we have around a dozen deeres here and our local deere" master tech " is excellent and dedicated to his job ,a lot of people do not appreciate the complexity and difficulty of some of the jobs that have to be carried out day after day ,
Keep up the great work and "keep that green iron moving" Zeth
Hi Zeth, thanks for another fine video. Have to say that my experience is that we have two types of techs these days! Those who can diagnose and those who cant and the ones that cant are literally parts changers. As I have said before I was a mechanical engineer for many years and was trained old school, but quickly learned that you need to understand the whole picture before making decisions. I recently had a fault with my BMW x5 and in my mind it was an earth fault. Local garage tried 3 times to repair and failed list a host of issues/parts that needed to be changed out. Took it to the BMW dealer which was in the city so a fair journey from home for them to resolve the issue. They gave me a courtesy car and I headed home. Less than 10 minutes into my journey home and I had a call from them to say the fault was an earth fault which the had found and repaired. I would need to keep this message going for another 20 lines to give you the list of faults that the local garage said was the problem! So the moral of the story is let those who really know their job and are good all rounders like yourself, get on and do the job right the first time!. Thanks
There's plenty of guys that are parts replacers, but the mechanics are really amazing at what they do.. the wiring and electronics nowadays are very complicated and it's crazy how good you and a few guys I know are at that stuff
Another excellent video Zeth!!.. Thanks for taking us along on your service calls.. You always have interesting stuff to see & learn.. You make it look simple, sir!!! Have a great weekend!!..😉🚜🚜
Im glad someone said it, im a mechanic for Missouri DOT and work on lots of John Deeres, a little smaller than those but i always love when the older mechanics or people say "Back in my day people would fix things instead of replacing them" or "We disnt have to use those fancy computers we used our heads." It always cracks me up im sure they did and many things you still can but most of the time you cant.
Ha, makes me laugh, "we ised our heads".
You have to know twice as much to be able to diagnose and fix something these days. Computer just tells you the code, not which part of the harness the rodents have eaten, or which fuel injector caused the carbonation that blocked the oil strainer.
Love all the troublshooting and system knowlege in these videos. That was my favorite part of working F-15's in the Air Force. Its cool to see similaries in troublshooting stratagies. They are both highly complex machines. Keep up the great work!
worked F-15's in Idaho for over a decade. Very similar in troubleshooting techniques. even the butterfly valve looks the same as some of the cold air valves on the 15. Awesome videos.
Enjoying your videos all the way from Tanzania. Awesome stuff
Liking the sass "Thanks EPA!" "This things mad!" "Most annoying sound"
I bet a lot of these newer engines, if they didn't have a bit of that emissions crud on there, would be nearly bulletproof. One major engine issues, to one annoying wire. The simplest fixes are the ones to hope for that solves everything.
I had to diagnose my 4850. Low voltage “code” was present…..(volt gage low). Ran home robbed my 4430 alternator…..back going. Down time 20 minutes. No emissions codes all spring.
I agree that a good technician has a very difficult job, from my perspective the difficulty comes straight from the manufacturer, they are responsible for all the ridiculously unnecessary components and wiring required to make all these things function
I felt so smart about that 8400 cause I immediately thought armrest control harness got bit by that tab on the seat, the biggest machines I’m on are 6140R and lower so it’s one of those if one does it they all do it. A lot of guys around here don’t run seats with enough air in them so the harness slips under the base and gets absolutely hammered or it twists and rubs. Did a 6125R, every wire but 2 were just fubar . HCU, Cornerpost, ICC, all the P controllers were freaking out. Fixed 14 wires over an 8” section of the harness and had it out that day since no one had a harness for it.
With great electronics comes great headaches
Well done on the diagnostic skills !
And we wonder(not) why these engines won't run half the time. All the junk on them is silly.
While I was in seminary, I worked doing repairs and being the repair manager for a pool company. The builder we worked with had a man named Earl who was the premiere repair guy in Dallas. I use to tease him that he didn't actually repair anything; instead, I claimed that he just laid his hands on the equipment and it was repaired to perfection.
Wise words today as always. The people who say that people are just changing parts are speaking from a perspective of very little knowledge. Probably repeating some else who had even less knowledge. Experience today found the wire in the cab, perhaps a bit of luck. Then I was told you make your own luck in this world. Thank you the videos are very good, no, excellent. My knowledge of where every where is in Illinois is getting better. Stay safe.
If the 9579RT got that hot at the DPF outlet to melt the sensor tip I would suspect the DPF is melted. The DOC and SCR may not function that well due to rapid aging of the catalyst coatings from high temps. I have seen DPF that melt in the middle but look fine at the outlet.
Great troubleshooting examples! If mice go to work on wiring, all bets are off but I wonder how often something in a factory wiring job fails in the first few years.
Watching a boss at work
Zeth another great content enjoy when you're trouble shooting faults. You're incredible individual knowing what steps to resolve issues. Keep the knowledge flowing. Definitely look you up at the next one. Stay safe!
Viewed 5-7-22 from Illinois Hi Zeth, WOW All I can say.............KNOWEDGE IS POWER........If you don't have the working knowedge than you are a parts changer.
I completely agree with you on the electronics. it's not easy, at all, to diagnose that stuff. lots of skill involved.
One tiny wire can cripple an entire machine... the worst part is finding it
Would you just look at that, look at it, look at that, look.....Mumbles strikes again...great vid👍🛠🛠🛠🛠🔨🔨👍👍👍😎
I've been watching awhile. You need to be a john deere tech teacher at the factory level.
The temperature faliure readings whas sensor faliure, do i understand you right Sir? From CEO Falun Machine Service, bad in English unfurtable Peter Eriksson Sweden Europe 😊😅😊!
Awesome video !!! Many times your FLUKE will be your best friend !!!!!
It's your diagnostic skill that we marvel at and love watching . Great video.Keep them coming !
Throttle on a diesel . Whooda thunkit? I know several "old dogs" that didn't keep up with the technology and were forced out of the trade. Multiex, can buss. Module this and that. Days of poke and hope with a test light are gone. 80% of my local cat dealer calls are emissions related. Forklifts are also a peach as everything is crammed in there very tight.
Thank you for taking the time to share these videos. Lots of training, intelligence and farm smarts on display.
We’re the front duals on the 8400R on backwards?
Although I work in a different industry, we have very similar skills / Jobs. I am a Service Engineer for a German Machinery Company. You are quite correct in as much as not being a parts changer, The Machinery my Company manufactures are CNC Machining Centers of various sizes and industry uses. We have customers who manufacture Dies and Molds along with Medical and Dental implant customers and everything in between. One week I may be doing a large Mechanical Repair and the next, trouble shooting an Electrical / Computer issue or teaching and training. The days have passed where I would have done a complicated component repair / rebuild in the field. Our company has various component repair / rebuild departments at one of our German facilities. Say an axis drive goes bad. We will install a rebuilt unit and program the parameters for that specific machine. A huge time saver for us in the field. The customer can't bring equipment to us, so I travel every week, covering the entire US & when needed Canada. As I am 65 years old this fall, I have seen many changes in Job requirements over the years. I enjoy seeing your diagnostics and problem solving very much. Thanks for your efforts with this channel sir!
Curious about that diag box. I'm assuming it's a 12 volt supply for load testing the harness from ecm to the component?
I worked at a large Volvo Truck dealer.When the service manager was hiring a mechanic the first question in the interview"do you know how to use a mulitmeter?".
No need to justify yourself to me Zeth. The over complex and sophistication products require intelligence and knowledge. Even a blind man can see you have your head well screwed on and well on top of the game. These machines generate profit for businesses and need to be right. I don't see excessive parts replacement at all, I see a professional doing a fast and efficient repair. Thanks from London.
Hello, is there a possibility to come from Europe, more precisely from Serbia, and work with you on the mechanics of large machines. I am an electrical engineer, but I like to work with mechanics.
The people who say that are just made they dont know how to work on modern vehicles and equiptment. Yeah, today we replace alot of things instead of rebuild. Hell we really dont rebuild alternators & such anymore either... but with the change or rebuilding some simple components like that, much more technical and theoritcal skill must be known and understood.
Excellent troubleshooting technique - a definite art form. Thanks for another episode.
Amazing trouble shooting skills, can't be overstated.
Zeth, electrical gremblins are the absolute worst! Chasing some of those will drive a person nuts…great video!!
Hey ZK, great video on troubleshooting the CAN bus! Wanted to ask if all you used was an digital meter or if you also have an analog one as well? I had a similar issue on my Jeep where we'd just installed a rebuild engine and got it all connected, had done the initial run-in and then all of a sudden it wouldn't start or if it did it wouldn't stay running. Checked all the connections (good fuel pressure, power to the computer, etc) and were checking all the connections on the computer with my digital meter, still couldn't' find where the problem was.
For some reason my brother and I decided to borrow our dad's old analog meter (think we were trying to check two ends at the same time) and my brother just happened to catch the needle on the analog meter barely twitch, but the digital meter still showed nothing. Ended up being damaged insulation to the distributor (very similar to your short) that if you bumped the wiring the right way it would clear, but otherwise there was no power going to the distributor. Never would have found it without the analog meter because the digital meter just couldn't' react fast enough ( the DMM is a Fluke 87). It was a great reminder of a lesson from my college electronics course about that very situation, where there are times where an analog meter will show fluctuations like that easily where the digital meter misses them (has to do with averaging times on the DMM)
What a mess with this big ass green tractor hopefully you have a blessed day
14:30 so true. And one more important thing is you also need years of experience. Its not that you graduate and you know everything. With the wire. Someone els could just say a modul is broke and replaced that, costing the farmer more money, but you did not do that you just fixed the wire. That is also very important ethic, I think you are a very valuable asset to John Deere. If i would be a farmer close to you, i would demand John Deere to send you every time i want service. LoL
hey thanks for the videos. i am an electrical engineering pro, have designed with the CAN bus protocol, and i also rebuiild jeeps as a hobby. i have to say that you see so many CAN bus failures is troubling. the fact that two power wires were pinched and shorted by a seat hinge, it never should have happened, and i think its a design failure by JD. that split loom harness behind the seat should have been protected with a metal shield or at least used closely spaced steel tie downs on the floor. that the loom could migrate up into the seat hinge is complete design engineering failure.
whats even more troubling is that you had to pull the cab to find some of these power shorts. this is absurdly bad engineering. any wiring that important and inaccessible should have double looms shielding or even steel shielded looms or whatever it takes to not break and expose the wires. it may also mean increasing the gauge of the wires.
the fact is most cars and trucks never have a can bus failure. the reason is makers have learned the hard way to protect the wiring and prepare for the harshest of conditions, and are over engineered.
I definitely appreciate your knowledge and skills at fixing electrical problems, but this one was purely a design engineering failure, and makes me wonder about John Deere. The engineering is so bad I would hazard to guess that Deere may even want these to fail.
True you have to know what caused the problem and how to fix it before you can fix it.
That sure was some fancy wiring at the bottom of that corner post on the dead tractor in the field. Awesome job and videos.
a little wire like that can cause entire vehicle to not to run
These days with all the electronic and electric and GPs and and and its no wonder mechanics are more computer literate than a programmer !
I think the misconception that techs just fire the parts cannon is due in part to bad shops who don’t train their techs and modern vehicles having so many parts that can only be replaced and not repaired. I’m in school to be a tech and the one thing every instructor repeats is that our primary task is to diagnose the problem and then fix it
Great awesome video zeth , keep that big green iron moving
you have to be a psychic reader at times diagnosing those electrical issues on modern equip these days
Great video and well said man, it ain’t easy out there sometimes and some folks don’t understand it.
thank you mate for another great video. keep up the great work working on American Steel 👍
Zack , i appreciste all you do and explaining!!
2:30 thank God you can just reach in the fuse panel and remove the alarm that makes that noise
You are great tech. Thank You for sharing sharing
Everybody is glad to see you show up today!
There are wire snags and then there are wire snags!
Awesome vid! Keep the deere's running
Hahaha
Back in my day if u got fuel ⛽️ and air it ran.
Doing great work thank for taking time and doing the videos and good work
Great information and videos, Thanks stay safe
thank you sir may i have another !!😃😃
Another good one Zeth. Keep up the great work!
Takes years to gain the knowledge
You must have quite a parts dept!
some days , you , do catch a break !
Interesting that the 8400R front tires are on backwards...
Yeah supposed to help with lots of road miles
What is that diagnostic box? It looks like something would be useful.
It's a John Deere special tool
Farina!! Dang boy, that’s my neck of the woods!
Almost!
The last 2 air throttles I have seen go bad were locked up, the actuator housing on one was melted. I found drive wires on both machines shorted to ground.
I thought the term "part changer" was applied to techs that don't know how to diagnose things, and just change parts until it is fixed.
Diaging electrical issues isn't always very fun but once you find and fix the issue it's very rewarding.
Bonjour, j'admire votre esprit d’analyse et de diagnostics que vous effectuez pour réparer toutes ces machines bourrées de technologie , bravo à vous👌👍👏
Reckon Sloans would import a guy and train him as a tech?
Excellent content again! Keep it up and keep the video's coming!
Great stuff, especially the shorted can line. Every time you see a twisted pair and wear marks on the wires, you know you're almost there. Does John Deere have any recommended repair methods for repairing can lines? Do they allow soldering, or do they require a new wire harness?
I always use heat shrink butt connectors. Never failed me yet.
Some times the simplest stuff. Former JD ag tech myself
👍👏 Good Job
The best
👍👏👏
Amen
Great work as always Zeth thanks for sharing 🦘👍
hey, i've always wondered, i any modern tractor, what would a normal, correct reading of the ohms be, you've told in the video, it shoudn't exceed 1000mOhms, but i was wondering if that is the case with pretty much all electronics around the tractor or how do you figure this out, where do you get the information for instance?
Also, should the reading be the same in some rarer cases, such as an electrical diagnositc of an older tractor, were they built with more resistance or not.
There is a spec in the service manual
@@ZKMasterTech the service manual the tractor comes with, or another one for mechanics only?
It's for technicians. But customers can buy service advisor.
@@ZKMasterTech thank you very much for the info.
In your experience does rhe egr or other emissions controls "def and scr" shorten the engine life? Which one would be the worst?
EGR is probably the hardest on the engine. Lot of black soot going back into the intake. The DPF and SCR don't really effect the internals of the engine since it's down stream of the exhaust but if they get plugged up it's hard for the engine to breathe.
@@ZKMasterTech Thank you, that's what I thought but I'm no diesel tech. I enjoy your videos
@@ZKMasterTech Plus with the DPF & SCR you need to run the engine at full bore to minimize the amount of soot from load spikes or it will shorten the life of the DPF and it's sensors.
I've been fighting the DPF & SCR system on a pretty new Volvo powered forestry harvester for the last two months where it would throw very vague codes on bad DEF quality every other day and lock down the engine from doing anything else than idling. Now after many, many technician visits hopefully they found the issue, with the Nox sensors being out of alignment and a issue with the Volvo service tools... And most of the Ad-blue system has now been replaced and serviced so hopefully it won't be the cause of the next issues.
👍👍👍
Shop videos are great, but I really love your field videos, and I know how big of a pain in the rear end they are to film because it probably takes you twice as long to do a job just getting the footage but I do appreciate it and I like those rescues in the field.
I don't let it take any extra time. I just let it roll
Jam of the day???
Oh shoot! I knew I forgot something... Let's do "Circle the drain" by Wage War.
The working conditions in the field is horrible
The worst part is dealing with impatient customers. Especially the one's who want to "Help" thinking they can make you go faster. My favorite is when they tell you to call someone. Who? I'm the guy people call!
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My dad farmed for 40 years. I don't think we ever had a tractor die in the field. Ran Case and Steiger. Never touched an engine or transmission. Bought good used examples and ran them hard. The biggest incidents I remember was a broken fan belt and a failed steering hydraulic hose.
You couldn't give me a new JD tractor. If you did, I'd sell it and get something reliable.
I don’t care what brand it is they all brake sometime
Yes and he ran the best Era of trouble free tractors these new plastic dpf tractors won't last 5 yrs without complete shutdowns and mother deere to come to the rescue with his pc. I know it is completely there fault that is a political issue but they just won't hold up like the pre dpf and metal tractors did.
@@j.c.ferguson2086 especially if it has dpf and all the crap all over it . I have watched all these fan clutch problems and I'm glad I don't have a green one in sight 😅 my case still has the factory everything and it's an 09 and these things can't make it 2000 hrs without 5000k worth of parts to get the engine cooling. I'd get a 4430 or 4440 and call it good the only thing that they will need is a cab kit and filters that gets you 20 yrs of continous reliability. I have nothing against the older deere stuff but I wouldn't touch these new ones .
@@jwhitley101whitleyfarms9 I totally agree. If I were farming today, I'd be purchasing older 500HP 4WDs and rebuilding them.
Enjoy your videos. nice to watch techs that know what they are doing. you have excellent trouble shoot skills. I report factory goofs, back to the manufacture in the course of my field repair;s of ptacs. Do you report back to J.D. on all the thing;s you find?.
Sometimes yes