Relief valve on the rail is what I have seen every time we got rail pressure codes. Its amazing what some guys miss: Today a municipal customer brought me a truck to work on the machine / body on back. He mentioned that their fleet shop has spent another full day trying to set the hood back on the truck after replacing the chassis radiator. They could not get the rear of the hood to engage the bumpers / seats where it rests when closed and the misalignment to the cab was obvious from 100 yards away. I'm NOT a Freighline truck chassis guy at all, but it only took 5 minutes to realized the cab was leaning back on a collapsed air bag which never fills up..... A simple bad air bag......
I have learned to check the battery everytime something comes in for anything other than routine maintenance. Half of them need cable ends anyway. I am surprised about the amount of systems that wire affected.
Good conversing with you. We are JD farmers up here. Our 80 year old mechanic, yes, the best JD mechanic in the northwest, built a Kinsie parts 8440 with a 855 cummins. It works great.
It used to be dad's would be really tough on their kids with changing batteries and electrical cables,etc. The battery was always the starting point on electrical issues. These hired hands running tractors have no dads getting on their case, or teaching them. When nothing matters in that world, those tractors don't run right and cost a fortune in repairs. A 10 minute coffee talk with the owner could solve his problems. Always superlative work and a great video, Warren! Thank you so much for the best reality television out there!
I worked on much smaller than this Electronic Gear and it still came down to a loose/bad connection many, many times. Bad or cracked solder joint, corrosion or just loose. Sure that dubious ground worked for awhile after it was set-up but then some dirt, water and bouncing worked it loose. Good Job!
Hey bud, great work again isn't it the little things. But you did your due diligence check everything. That's why you have the customer's you do. Your knowledge is priceless.
For the computer generation in the technical schools, this should be a mandatory video. Some will be intrigued by it, others will realize the selected studies are not their cup of tea. Good work, Warren.
I hate bad grounds but that’s what keeps you in business people not knowing what they’re doing grounds are everything these days with all the electronics they have on these tractors and trucks grounds are very important thanks for the great video!!!
New Holland should've just stayed in haying equipment and left Ford as Ford. Back in the day, Ford would give JD a damn good run for their money. Another great video Warren. Cheers :)
Many problems depend on ground problems. Work with an old IH scout II restoring and it is amazing that anything could work with ground in the chassis on many places. Good work to find the problem Warren!!!
I was watching a CZcams video the other day and they was at an automatic transmission shop and the mechanic said one haft of all fords transmission failure is from a bad ground and the ground is running up though the drive shaft and through the converter and burning them up ... great video Warren praying all is well buddy 🙏🙏🙏🙏💚💚💚
As always, a great informative upload. Occured to me this was compelling like a murder mystery! What was the culprit, trying to second guess the way through.......Even though the title gave away the ending, nice plot twist at the end, brilliant!!! After watching all your stuff john deere might be getting a new customer, when the time comes.
My brother does the same line of work, he laughed and said been there this is why I always ask my customers what they have touched. must be frustrating
Well done Warren. What a interesting bunch of problems and such a simple solution. I think now the only problem left is how do you bill the customer for several hours of pretty high level of mechanical skill just to tighten one bolt. The answer might be to tell him to watch the video.....
I was thinking those guys really bought a lemon tractor, but really it’s the operators idling and stopping the regen. Screwed the engine, and someone in a hurry changed the battery that tractor doesn’t get much of a chance
Wow, it's a good thing you recorded your troubleshooting! Hopefully the customer will refrain from having his people work on his equipment once he gets your bill! Cool light, I ordered on myself, Cheers!
I can hardly believe John Deere would make a auxiliary connection on the battery cable clamp. They used to be awesome at keeping those connections away from the battery, away from the corrosion issues that are sure to cause problems over time. Keep the single point grounds and auxiliary power supplies away from the battery main connections.
Went on a call for a display wall that we'd been out to several times, to replace failed displays every couple of weeks and, this time, a dead media controller. Told my boss we should look for what could be causing the failures - outside our scope, but what the hell, he was getting tired of dealing with that site too. All the media cabling looked good, so he plugs in a receptacle tester and gets nothing. Doesn't even light up. We figure maybe it just up and died on us, so I pull out my T5 and the voltage is all over the place - sometimes it shows no voltage from hot to neutral or hot to ground, sometimes it shows voltage neutral to ground, sometimes it shows negative voltage (hot ground), displayed voltage anywhere from 40-ish to 130+ - just crazy stuff. So we finally end up in the back room looking at the panels. Something about that one panel just looks *wrong*; nothing I could actually pinpoint, other than being the only one with a loose cover, but it didn't feel right. I poked the cover with my finger to point it out, just a little tap, and the damn thing flashed at me! Something inside was sparking. We get the cover off - turns out it was loose because the screws were all cross-threaded and jammed - and the problem is real obvious. The neutral bus bar was burned and melted around one lug. Someone never bothered to screw down the neutral feed wire, so it had just been flopping around and arcing in there for years. Now we're *way* outside our scope, so we called it in, locked out the feed, closed everything up, and GTFO. Only times we saw that site from then on were on the normal service/upgrade schedule.
@@Azlehria Been in the trade for 20 plus years and learned if the end doesn't work go back to the beginning. It is amazing how many times you find some guy probably rushing to get finished didn't take the time to make sure everything was tight. Voltage jumps like that are almost always a loose or none esistant neutral
Amazing what you can do. I just don’t see how these farmers can keep up with the constant breakdown cost, all the epa standards etc with these tractors.
I was gonna say, something electrical? Had an issue with an 8870 that would kill if it would start pulling, or using the lights or brakes... found out it was a corroded cable, one of the main heavy gauge wires that connects the batteries together. Only issue I've had with new Holland drivelines is a ujoint went out on one, luckily the only thing it did was tear up the shroud that wraps around it. Ended up disengaging it, tied it up with wire to the frame, finish seeding the field, then drove it home to fix it. Other than that all of our NH and AGCO tractors have the ujoint style, never seen them any other way... maybe the smaller, cheaper models have poorer design, or that the operator is turning sharp all the time on hard ground with fulltime FWD engaged? Either way, thanks for the heads up! If ever buying a smaller machine, will be another point of interest.
Who would ever thought something as simple as a diesel tractor that don't even need spark plugs would end up more electrical/electronic stuff than the space shuttle had on it?
My dad used to say electricity won’t go anywhere it can’t get back from I had a semi truck couple years ago and every time you start this truck and it started fine you would get a popping sound through the speakers and I mentioned this to my dad First thing he says is a bet you got a bad ground and sure enough Pop was right
Or Warren you can put it in low gear and put in reverse and hold one brake pedal down let the rear wheel spin then hit the MFWD button to fwd if the tractor starts moving back. The MFWD is working if not you will have a leak in the pack or electrical problem if you don't have a jack. Keep up the awesome videos
You get lemons with every brand, that New holland fwd setup has been around for years. We've got tractors with that setup with combined hours of over 60,000 and we only had to change 1 female spline coupling. The terraglides are worse, they seize bearings at 50k/hr and just about send you through the front window.
Massey has a similar problem, there is a single wire that goes to a hydraulic pressure sensor on the gearbox, when it breaks you get stuck in 4wd, D range etc etc.
If someone has 4wd not disengaging problems on the John Deere R series, the first thing i ask is if they took the drawbar off and on.. because if they push the drawbar too far in it hits the 4wd sensor wire
"the wrath of warren" staring jerry riggs tractor with captain kirk seat. do you know how hard it is to drive those when the seat swivel wont lock? 24 pack mtn dew jammed behind works
Now you know to check for battery connections when gremlins take over. Just don't list the battery terminal tightening on your bill. LOL You do know the condition of everything else. Those intermittent electrical problems are miserable to trouble shoot. You found it when whoever put the batter together could not. My Case was a Model T compared to those JDs.
Our you can just drive the tractor with the wheels turned full left or full right then engage the MFWD switch and if all is working you will see and feel a reaction in the front wheels .
I hope you charged them for every last minute of your time. Severs them right for messing with the batteries when they clearly didn't know what there doing.
Hi from New Zealand, Gee, I was brought up on Farm around tractors, but none of them had cockpits like a jet fighter? With buttons and bells and whistles going off?
With all the backhoes in the background, what do you like to work on better Case or John Deere or another brand? My reason for asking is to do with making a future purchase for a small farm. My folks have an older 510, but what about getting parts, dependability, ease of maintenance... and whatever else you can think of when recommending a brand. Thanks!
Yeah, and then if they put somewhere else, you'd be critical of Deere for putting in place that was difficult to access. I find it interesting that, with some people, it's always the manufacturer's fault. Is it ever the idiot that can't put things back together correctly fault?
Buckhorn Cortez kudos to the mechanic. He is pretty talented and he found the issue. As far as that wire stuck away attached to the battery I’m on the fence about that. I want to say it’s bullshit that such a important power feed was hidden ( kinda sorta). Having said that , in any event , again as I said before the mechanic found the problem . Kudos him 👍
The best new holland was back in the mid seventies and WASNT a tractor, but was a skid steer because the bucket moved up and down level. No hitting bumps and dumping hog manure all over you.
We have a 6615 that has been the worst tractor i have ever seen. Was bought used and the only thing that hasnt been touched or repaired has been the engine.
I had a whole week that every car I worked on that the repair was to fix someone eles's shitty work. People think its "better" if they do things themselves....
Dont know if you reply to questions but here goes .A 05 john deere 6820 with an auto quad transmisson has intermitant hesitation on the power shift any suggestions greatly appreciated .FYI this is a european spec tractor.
when i work on cars.. this is the test i do first.. and last.. i.imgur.com/kviX0VQ.jpg you would not believe how many tiny ground connection issues i have found and made cars and pickups work so much better.. it looks complicated.. i can do the first 4 steps in under a minute.. test 5 and 6 take a few minutes. . why test multiple fuses in the underhood fuse box.. because the way they build the fuse box.. with multiple buss bars to groups of fuses.. it saves me days of hair pulling every month. feel free to copy and print the images.. even give away copies or paste it.. that is the test sequence i assembled from multiple sections of different service manuals.
Guys like you and Eric O. do not get one tenth of the credit that you deserve for knowing how to keep this world "running".
I second that.
you just saved that owner alot of money. i hope he gives you a good tip and sreads the word of your skills. enjoy your work !!!
Relief valve on the rail is what I have seen every time we got rail pressure codes.
Its amazing what some guys miss: Today a municipal customer brought me a truck to work on the machine / body on back. He mentioned that their fleet shop has spent another full day trying to set the hood back on the truck after replacing the chassis radiator. They could not get the rear of the hood to engage the bumpers / seats where it rests when closed and the misalignment to the cab was obvious from 100 yards away. I'm NOT a Freighline truck chassis guy at all, but it only took 5 minutes to realized the cab was leaning back on a collapsed air bag which never fills up..... A simple bad air bag......
bad mental state in that shop. boss must have a million in his pocket, treats his techs like shit, and thinks he is ALWAYS right!
You amaze me you on how much you know on the John Deere tractors I learned so much from you and thank you for your content
When I get that bill for a loose wire.... grrrr!
Bad ground can cause many problems at times been there done that.
Good job Warren finding the problem.
I have learned to check the battery everytime something comes in for anything other than routine maintenance. Half of them need cable ends anyway. I am surprised about the amount of systems that wire affected.
@carbine1776 BOB I use my powerprobe all the time. It so easy to back power circuits and supply ground to relays for a quick diagnosis.
One damn wire. And a missing hat. Damn Warren. 1/2 a day but you are a mechanical genius. Just awesome. Thanks for another grate video bud.
Good conversing with you. We are JD farmers up here. Our 80 year old mechanic, yes, the best JD mechanic in the northwest, built a Kinsie parts 8440 with a 855 cummins. It works great.
well done warren! its so exillerating when you sus out the problem. gives a warm feeling inside
Warren , you are a Master of Diagnostics!
It used to be dad's would be really tough on their kids with changing batteries and electrical cables,etc. The battery was always the starting point on electrical issues. These hired hands running tractors have no dads getting on their case, or teaching them. When nothing matters in that world, those tractors don't run right and cost a fortune in repairs. A 10 minute coffee talk with the owner could solve his problems. Always superlative work and a great video, Warren! Thank you so much for the best reality television out there!
I worked on much smaller than this Electronic Gear and it still came down to a loose/bad connection many, many times. Bad or cracked solder joint, corrosion or just loose. Sure that dubious ground worked for awhile after it was set-up but then some dirt, water and bouncing worked it loose. Good Job!
This should be the first video they watch at any mechanics trade school. What a great lesson.
Hey bud, great work again isn't it the little things. But you did your due diligence check everything. That's why you have the customer's you do. Your knowledge is priceless.
Tighten bolt, $.075, knowing which bolt to tighten, priceless. Glad they saved that money by not having you change the battery!
And to think that the other day I was complaining about setting points on my 8N Ford with a front mount distributor... LOL
Nothing like a good round of playing "Find the loose wire".
I love watching these shows // so full of knowledge
For the computer generation in the technical schools, this should be a mandatory video. Some will be intrigued by it, others will realize the selected studies are not their cup of tea.
Good work, Warren.
I hate bad grounds but that’s what keeps you in business people not knowing what they’re doing grounds are everything these days with all the electronics they have on these tractors and trucks grounds are very important thanks for the great video!!!
Yes!! you rebuilt that about a year ago I've been with ya the whole time boss man bahahahhaha love ya and ur vids keep em coming!!
New Holland should've just stayed in haying equipment and left Ford as Ford. Back in the day, Ford would give JD a damn good run for their money.
Another great video Warren. Cheers :)
Many problems depend on ground problems. Work with an old IH scout II restoring and it is amazing that anything could work with ground in the chassis on many places. Good work to find the problem Warren!!!
I was watching a CZcams video the other day and they was at an automatic transmission shop and the mechanic said one haft of all fords transmission failure is from a bad ground and the ground is running up though the drive shaft and through the converter and burning them up ... great video Warren praying all is well buddy 🙏🙏🙏🙏💚💚💚
amazing how one lil thing can case one big problem, glad i came across your channel the other day. i really enjoy the videos.
Took me a bit to figure out how to get those lights to you. Thanks for sharing your videos.
No, thank you. They are really nice.
What kind of lights are those?
As always, a great informative upload. Occured to me this was compelling like a murder mystery! What was the culprit, trying to second guess the way through.......Even though the title gave away the ending, nice plot twist at the end, brilliant!!! After watching all your stuff john deere might be getting a new customer, when the time comes.
Really interesting watching you diagnose this problem and shame on the guy who changed the battery.
My brother does the same line of work, he laughed and said been there this is why I always ask my customers what they have touched. must be frustrating
i have learned the hard way about dealing with a bad ground my fault of course but it was a good learning experence
Well done Warren. What a interesting bunch of problems and such a simple solution. I think now the only problem left is how do you bill the customer for several hours of pretty high level of mechanical skill just to tighten one bolt. The answer might be to tell him to watch the video.....
I was thinking those guys really bought a lemon tractor, but really it’s the operators idling and stopping the regen. Screwed the engine, and someone in a hurry changed the battery that tractor doesn’t get much of a chance
Wow, it's a good thing you recorded your troubleshooting! Hopefully the customer will refrain from having his people work on his equipment once he gets your bill! Cool light, I ordered on myself, Cheers!
Hi warren not sure if you read comments but a tool box ( tool truck) tour would be neat
Definitely I second that
if you ever want a change of occupation ,with skills like that any detective agency
would love to have you .well done
Basic 101 of modern mechanial equipment repair---. Check your battery connections---check your grounds---. Thank you---for an excellent video---.
I can hardly believe John Deere would make a auxiliary connection on the battery cable clamp. They used to be awesome at keeping those connections away from the battery, away from the corrosion issues that are sure to cause problems over time. Keep the single point grounds and auxiliary power supplies away from the battery main connections.
Simply amazing knowledge Warren 👍🇦🇺
Just proves the point you get what you paid for. Experience matters! Sure Boss, I can put that battery in the tractor. Glad you found the problem.
Simple things like grounds can really fuck up your day.
another good vid warren
Check the easy things first, so true. In this day and age of electronic controls, wiring connections are often the culprit.
Great job on the trouble shooting on that one. Electric work, 5 minutes to 5 hrs. No one will ever be able to know.
the more do-dad's the more electric-electronic troubles. only the better to best mechanics can chase these gremlins down!!
Lol . Those tractors are like operating the space shuttle.
I am an electrician it is amazing how many times it's a missing ground or neutral wire
Went on a call for a display wall that we'd been out to several times, to replace failed displays every couple of weeks and, this time, a dead media controller. Told my boss we should look for what could be causing the failures - outside our scope, but what the hell, he was getting tired of dealing with that site too.
All the media cabling looked good, so he plugs in a receptacle tester and gets nothing. Doesn't even light up. We figure maybe it just up and died on us, so I pull out my T5 and the voltage is all over the place - sometimes it shows no voltage from hot to neutral or hot to ground, sometimes it shows voltage neutral to ground, sometimes it shows negative voltage (hot ground), displayed voltage anywhere from 40-ish to 130+ - just crazy stuff.
So we finally end up in the back room looking at the panels. Something about that one panel just looks *wrong*; nothing I could actually pinpoint, other than being the only one with a loose cover, but it didn't feel right. I poked the cover with my finger to point it out, just a little tap, and the damn thing flashed at me! Something inside was sparking.
We get the cover off - turns out it was loose because the screws were all cross-threaded and jammed - and the problem is real obvious.
The neutral bus bar was burned and melted around one lug. Someone never bothered to screw down the neutral feed wire, so it had just been flopping around and arcing in there for years.
Now we're *way* outside our scope, so we called it in, locked out the feed, closed everything up, and GTFO. Only times we saw that site from then on were on the normal service/upgrade schedule.
@@Azlehria
Been in the trade for 20 plus years and learned if the end doesn't work go back to the beginning. It is amazing how many times you find some guy probably rushing to get finished didn't take the time to make sure everything was tight.
Voltage jumps like that are almost always a loose or none esistant neutral
To much electronic junk on the new tractors !
If the would be like that it be harder for you to repair them.
Amazing what you can do. I just don’t see how these farmers can keep up with the constant breakdown cost, all the epa standards etc with these tractors.
I was gonna say, something electrical? Had an issue with an 8870 that would kill if it would start pulling, or using the lights or brakes... found out it was a corroded cable, one of the main heavy gauge wires that connects the batteries together.
Only issue I've had with new Holland drivelines is a ujoint went out on one, luckily the only thing it did was tear up the shroud that wraps around it. Ended up disengaging it, tied it up with wire to the frame, finish seeding the field, then drove it home to fix it. Other than that all of our NH and AGCO tractors have the ujoint style, never seen them any other way... maybe the smaller, cheaper models have poorer design, or that the operator is turning sharp all the time on hard ground with fulltime FWD engaged? Either way, thanks for the heads up! If ever buying a smaller machine, will be another point of interest.
After watching you work on this POS, I'm glad I got out of the mechanic field when I did. Bring back the 7x10 series!
Who would ever thought something as simple as a diesel tractor that don't even need spark plugs would end up more electrical/electronic stuff than the space shuttle had on it?
My dad used to say electricity won’t go anywhere it can’t get back from I had a semi truck couple years ago and every time you start this truck and it started fine you would get a popping sound through the speakers and I mentioned this to my dad First thing he says is a bet you got a bad ground and sure enough Pop was right
Or Warren you can put it in low gear and put in reverse and hold one brake pedal down let the rear wheel spin then hit the MFWD button to fwd if the tractor starts moving back. The MFWD is working if not you will have a leak in the pack or electrical problem if you don't have a jack. Keep up the awesome videos
the master at work
Warren, we have a problem here ,,,, good video, keep them coming
Sherlock holmes of tractor problems, well done.
Thank you for your videos 👍🤝🛠️🚜🙂🤠
Job well done Warren soak them good.
Enjoyed your video. Thanks for sharing.
That’s what I tell my son it’s usually the ground wire 👍
I'm sure you save that customer a ton of money by not having to tear into the hydro system. Great job
Id like to see a video on tractors you recommend or models you don't.
That was a good tutorial, thank you.
You get lemons with every brand, that New holland fwd setup has been around for years. We've got tractors with that setup with combined hours of over 60,000 and we only had to change 1 female spline coupling. The terraglides are worse, they seize bearings at 50k/hr and just about send you through the front window.
Massey has a similar problem, there is a single wire that goes to a hydraulic pressure sensor on the gearbox, when it breaks you get stuck in 4wd, D range etc etc.
If someone has 4wd not disengaging problems on the John Deere R series, the first thing i ask is if they took the drawbar off and on.. because if they push the drawbar too far in it hits the 4wd sensor wire
Nice troubleshooting bud thanks for sharing 👍Hope all is well!
"the wrath of warren" staring jerry riggs tractor with captain kirk seat. do you know how hard it is to drive those when the seat swivel wont lock? 24 pack mtn dew jammed behind works
Good job locating the bad ground there young man.
Good job 👏 👍
Nice one warren but these things will happen when you put the battery In a shitty place behind the steps with a small access door 😎
Any ideas how to get the self confidence back, so your not second guessing yourself every time.
Now you know to check for battery connections when gremlins take over. Just don't list the battery terminal tightening on your bill. LOL You do know the condition of everything else. Those intermittent electrical problems are miserable to trouble shoot.
You found it when whoever put the batter together could not.
My Case was a Model T compared to those JDs.
That damn thing is what I like too call a lemon.
well shoot that must have been frustrating
I just went thru this on a truck crane whenever u toggle a function the grounds to everything turned to 10 volts end up being main ground going to pdm
Our you can just drive the tractor with the wheels turned full left or full right then engage the MFWD switch and if all is working you will see and feel a reaction in the front wheels .
I hope you charged them for every last minute of your time. Severs them right for messing with the batteries when they clearly didn't know what there doing.
good job finding the problem quick question, how do you get the service advisor? help me if you can thanx.
Hi from New Zealand,
Gee, I was brought up on Farm around tractors, but none of them had cockpits like a jet fighter? With buttons and bells and whistles going off?
With all the backhoes in the background, what do you like to work on better Case or John Deere or another brand? My reason for asking is to do with making a future purchase for a small farm. My folks have an older 510, but what about getting parts, dependability, ease of maintenance... and whatever else you can think of when recommending a brand. Thanks!
Yes that's y they come to you give yourself a big pat on the back full marks
oh these really fun when this happens.
Seems to be a pretty important wire to be causally stuck hiding out of site on a battery terminal used to start the tractor ?
Yeah, and then if they put somewhere else, you'd be critical of Deere for putting in place that was difficult to access. I find it interesting that, with some people, it's always the manufacturer's fault. Is it ever the idiot that can't put things back together correctly fault?
Buckhorn Cortez kudos to the mechanic. He is pretty talented and he found the issue. As far as that wire stuck away attached to the battery I’m on the fence about that. I want to say it’s bullshit that such a important power feed was hidden ( kinda sorta). Having said that , in any event , again as I said before the mechanic found the problem . Kudos him 👍
These newer emissions era tractors will probably all be in the salvage yard inside of 10 years.
Never let the help install yer tracker battery. 😃
the JD's that comes out of germany might be okay tractors, but much more value when buying a NH
Steely-Eyed Missile Man 😎
Man I wish I had your diagnostics knowledge. Electronic or mechanical.
Your the man 👍
The best new holland was back in the mid seventies and WASNT a tractor, but was a skid steer because the bucket moved up and down level. No hitting bumps and dumping hog manure all over you.
Yeah, I hear it, it's a bomb, run.
What tractor do you think is the best and dosent break down or have alot of problems?
We have a 6615 that has been the worst tractor i have ever seen. Was bought used and the only thing that hasnt been touched or repaired has been the engine.
Problems like this can make you a grumpy ass mechanic. No way to charge the customer for all the time you invest in chasing someone else’s mistake.
I had a whole week that every car I worked on that the repair was to fix someone eles's shitty work. People think its "better" if they do things themselves....
Hey buddy ilearned a trick years ago .use a doctors stephascope i cant spell and change end to a brake line works great to find sounds
They are good for finding a relay on a panel that has a bunch of relays
Itsa itsa bomb!
Dont know if you reply to questions but here goes .A 05 john deere 6820 with an auto quad transmisson has intermitant hesitation on the power shift any suggestions greatly appreciated .FYI this is a european spec tractor.
Can't figure out why we need so much electronics in machines. Way too many breakdowns are just electronic failures
coming from Germany , i had to get an engine block from France.
when i work on cars.. this is the test i do first.. and last.. i.imgur.com/kviX0VQ.jpg you would not believe how many tiny ground connection issues i have found and made cars and pickups work so much better.. it looks complicated.. i can do the first 4 steps in under a minute.. test 5 and 6 take a few minutes. . why test multiple fuses in the underhood fuse box.. because the way they build the fuse box.. with multiple buss bars to groups of fuses.. it saves me days of hair pulling every month. feel free to copy and print the images.. even give away copies or paste it.. that is the test sequence i assembled from multiple sections of different service manuals.