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bwest
Administrator

United States
3820 Posts

Posted - 04/16/2018 :  05:29:09 AM  Show Profile  Reply with Quote
So, first question; when does a person say uncle? This unit has had over 12k spent on it within the last 12 months. Now the dealer says I need 6k worth of parts. I am somewhat confused with the part names. They are saying it needs the 10" DPF converter and the DOC. I thought that there is a DOC (diesel oxidation catalyst) and a DPF (diesel particulate filter) in the system. What is the 10" DPF Converter that they are referring to?
Also, when do you say enough is enough and cut losses on these things. At the time that we got the last work done (12k was over about a 3 month stretch, a couple grand at a time) I ask specifically if there were any more big ticket items that could go wrong. The statement made at that time was "yes, but it is unlikely that you will have trouble for a while". I also recall them saying that "of course there is no way to guarantee that there won't be more trouble". lol but not lol. To say I'm frustrated is really an understatement.

Thomasbus24
Administrator

USA
4544 Posts

Posted - 04/16/2018 :  05:34:23 AM  Show Profile  Reply with Quote
I usually prefer to fix a bus than to replace it, but if I were in your shoes, I'd push to call it quits...it's never going to end. Never.

The school district in which I reside owns one VT365, and every time I see it on it's monthly trip to the dealer I just think to myself "put that thing out of it's misery!"

Take the money you are sinking into the MaxxForce black hole and throw it towards a lease-purchase. Talk to your sales rep, see what kind of numbers he can come up wit.
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Sherm
Top Member

USA
621 Posts

Posted - 04/16/2018 :  06:21:39 AM  Show Profile  Reply with Quote
Or, maybe after presenting your administrators and school board with the data, agreeing to fix it one more time and making it one of your spare buses would be an intermediate step? It is 8 years old, so it's time for something to change.
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aaronwilmoth80911
Top Member

538 Posts

Posted - 04/16/2018 :  06:49:39 AM  Show Profile  Visit aaronwilmoth80911's Homepage  Reply with Quote
Bryan, this is one that you should post on the Facebook page and tag Ben Bird. He is a Navistar tech and is very well versed with these engines. He has given me a tremendous amount of help and he may be able to either give you an explanation as to what is going on with yours or maybe give you the help you need to repair it for hopefully cheaper. Just my $.02
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bwest
Administrator

United States
3820 Posts

Posted - 04/16/2018 :  07:17:40 AM  Show Profile  Reply with Quote
quote:
Originally posted by aaronwilmoth80911

Bryan, this is one that you should post on the Facebook page and tag Ben Bird. He is a Navistar tech and is very well versed with these engines. He has given me a tremendous amount of help and he may be able to either give you an explanation as to what is going on with yours or maybe give you the help you need to repair it for hopefully cheaper. Just my $.02



What facebook page are you referring to?

Bryan
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jeeptjken
Senior Member

147 Posts

Posted - 04/16/2018 :  07:18:41 AM  Show Profile  Reply with Quote
those are a hole in the road where you will pour all your money and no good will come of it

How did you get the gosinta in the whatchamacallit
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bwest
Administrator

United States
3820 Posts

Posted - 04/16/2018 :  07:23:25 AM  Show Profile  Reply with Quote
What about a repower for this bus? Would that do me any good? Wonder how much they would be to do?

Bryan
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Fastback
Top Member

1500 Posts

Posted - 04/16/2018 :  07:42:36 AM  Show Profile  Reply with Quote
Last I heard the Cummins repower program was only on the V8s, was about $30k and expired at the end of 2017.

Why yes, the ORIGinal CHARGER is a Fastback
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bwest
Administrator

United States
3820 Posts

Posted - 04/16/2018 :  07:46:54 AM  Show Profile  Reply with Quote
Just talked to a guy in Louisville and they are at 28k on pre '10 and 50k on '10 up. 50k would be good money after bad to me. You can buy a very good used bus for 50k!

Bryan
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Fastback
Top Member

1500 Posts

Posted - 04/16/2018 :  07:51:38 AM  Show Profile  Reply with Quote
I would bet they are talking emission system year not necessarily bus model year. The 50k version would likely have an scr system with DEF tank, not likely needed depending on when your bus was actually built.

Why yes, the ORIGinal CHARGER is a Fastback

Edited by - Fastback on 04/16/2018 07:52:42 AM
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bwest
Administrator

United States
3820 Posts

Posted - 04/16/2018 :  08:13:11 AM  Show Profile  Reply with Quote
4/10

Bryan
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aaronwilmoth80911
Top Member

538 Posts

Posted - 04/16/2018 :  08:59:39 AM  Show Profile  Visit aaronwilmoth80911's Homepage  Reply with Quote
School bus mechanics page.
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bwest
Administrator

United States
3820 Posts

Posted - 04/16/2018 :  09:06:11 AM  Show Profile  Reply with Quote
quote:
Originally posted by aaronwilmoth80911

School bus mechanics page.



OK, I'm on that one. Thanks

Bryan
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Fastback
Top Member

1500 Posts

Posted - 04/16/2018 :  09:06:37 AM  Show Profile  Reply with Quote
quote:
Originally posted by bwest

4/10



Thats a pretty late build for a 2010 model year IC bus. Bottom line, 07 emission standard engine can be replaced with an 07 emission standard engine.


Why yes, the ORIGinal CHARGER is a Fastback

Edited by - Fastback on 04/16/2018 09:07:03 AM
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bwest
Administrator

United States
3820 Posts

Posted - 04/16/2018 :  10:33:03 AM  Show Profile  Reply with Quote
Yep, that's what I thought. Thanks

Bryan
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Brad Barker
Administrator

USA
874 Posts

Posted - 04/19/2018 :  12:58:51 PM  Show Profile  Click to see Brad Barker's MSN Messenger address  Reply with Quote
Brian,
I am sorry to hear you have had so much trouble with these engines. I have personally come to like them. Maybe that seems odd to most of you but in reality what it boils down to is gaining a full understanding of the engine. I, like you, tend to dislike those things that I do not fully understand. We see many more issues with our Cummins engines than we do with our MF Dt’s (23). I know you are an experienced mechanic and perhaps this is why your comments are so troubling to me. My recommendation is to access all of the service literature on the engine and after treatment system and familiarize yourself with the systems. Also, read up on the various TSB’s on the engine in the webpage. If you have specific issues with them, I can possibly help since I am diamond certified through international on that engine and worked for a time as a customer service technician. Best regards, Brad

Brad A. Barker
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bwest
Administrator

United States
3820 Posts

Posted - 04/20/2018 :  08:47:00 AM  Show Profile  Reply with Quote
quote:
Originally posted by Brad Barker

Brian,
I am sorry to hear you have had so much trouble with these engines. I have personally come to like them. Maybe that seems odd to most of you but in reality what it boils down to is gaining a full understanding of the engine. I, like you, tend to dislike those things that I do not fully understand. We see many more issues with our Cummins engines than we do with our MF Dt’s (23). I know you are an experienced mechanic and perhaps this is why your comments are so troubling to me. My recommendation is to access all of the service literature on the engine and after treatment system and familiarize yourself with the systems. Also, read up on the various TSB’s on the engine in the webpage. If you have specific issues with them, I can possibly help since I am diamond certified through international on that engine and worked for a time as a customer service technician. Best regards, Brad



Thanks, Brad, I may take you up on your offer. We're in a holding pattern on this bus until I get some more options. What I dislike the most is that this engine wouldn't just run for a couple hundred thousand miles without trouble beyond a few hundred dollars. I'm relatively young (49) but I can remember a time when buses/ trucks just did their job and didn't give much trouble. That, in a nutshell, is what I see in the propane engines. That being no trouble, to speak of, just up time.

Bryan
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aaronwilmoth80911
Top Member

538 Posts

Posted - 04/20/2018 :  08:53:55 AM  Show Profile  Visit aaronwilmoth80911's Homepage  Reply with Quote
I'll go out on a limb here with Brad and also say that with some understanding, they are not a terrible engine. I am speaking strictly of the 2007 emissions engines. Over the last year or so, I have had some help from a Diamond Certified Navistar tech and it has definitely helped to open my eyes to having a better understanding with them. Maybe we've gotten lucky on some things also. We did have one that had to be replaced last year because of the dog bone problem, so its not all rainbows and unicorn farts here.
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torque
Advanced Member

Canada
358 Posts

Posted - 04/20/2018 :  09:35:40 AM  Show Profile  Reply with Quote
Sometimes with understanding comes forgiveness :) Yes, understanding them certainly helps in diagnosing and repairing them, but it doesn't make the problems they have go away. The problems we have with our Cummins are no where near as big, in depth or expensive as the problems we have with our IC's
Why did IC finally start putting a Cummins in their buses? Because people stopped buying. Why did Ford end their contract with IH supplying their engines? In general, over all they are unreliable and expensive.
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bwest
Administrator

United States
3820 Posts

Posted - 04/20/2018 :  10:06:05 AM  Show Profile  Reply with Quote
quote:
Originally posted by torque

Sometimes with understanding comes forgiveness :) Yes, understanding them certainly helps in diagnosing and repairing them, but it doesn't make the problems they have go away. The problems we have with our Cummins are no where near as big, in depth or expensive as the problems we have with our IC's
Why did IC finally start putting a Cummins in their buses? Because people stopped buying. Why did Ford end their contract with IH supplying their engines? In general, over all they are unreliable and expensive.



Expensive is the key word here. I have soured on diesel engines entirely unless they are in an over the road truck, farm tractor or construction equipment. There's just no need to have spend so dang much money to keep these machines going.

Bryan
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aaronwilmoth80911
Top Member

538 Posts

Posted - 04/20/2018 :  10:07:17 AM  Show Profile  Visit aaronwilmoth80911's Homepage  Reply with Quote
@Torque, you're certainly not wrong about certain things that happen that make something unreliable, but at least having an understanding of how it operates and how to repair can maybe lead to some preventive procedures before things go fully south. I would agree to an extent that Cummins seem to be more reliable, but we have had plenty of problems with our brand new Cummins over the last few years. The only silver lining with that is that they are under warranty still.
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Brad Barker
Administrator

USA
874 Posts

Posted - 04/20/2018 :  10:42:58 AM  Show Profile  Click to see Brad Barker's MSN Messenger address  Reply with Quote
What I have found as far as the repairing portion of the above comment is that 1) They were a new design which actually caused diagnostic issues even at the factory. It wasn't put to the test sufficiently prior to being sold. I found early on we were receiving wrong information from the technical staff at IC for diagnostics. Now that the engine has been out for many years, most diagnostic issues have become known. Proper diagnostics equals proper repair. The same applies to the CAT C7S which was stricken with multiple problems. I believe if Cat would have stuck it out they would have resolved everything and would have been able to supply a very reliable and competitive engine. After the fact of stopped production of that motor, we now can make them run pretty good and reliably. 2) IC Techs at dealers were making wrong repairs which caused frequent failures, return to dealer over and over and a lot of down time because they weren't finding the root cause to the problem. Not to brag but I can make them go the distance now with only occassional problems. As I said before on Cummins (and I like cummins too) we have multiple EGR cooler failures and many leak issues.
As far as the reason for IC to stop selling the engine and installing Cummins has to do entirely with emissions certification. IC could not make that engine meet emissions standards without the use of DEF. Rather than spend more money on engineering IC opted to use an engine ready to go. Incidentally, IC has been installing Cummins engines in trucks as an option for many years. It was the bus market that was last to be adapted.
Ford made changes not because of reliability.
I really dislike people badmouthing a product when in actuality it is just lack of understanding and besides if they didn't break, I'd be out of job.
Best regard to all.

Brad A. Barker
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td083
Senior Member

195 Posts

Posted - 04/20/2018 :  10:49:46 AM  Show Profile  Visit td083's Homepage  Reply with Quote
Maxxforce dt 07 -engine alone decent ...engine plus emissions equipment/aftertreatment system = junk
You don't have to be a Maxxforce expert on these to see the money spent is absurd .
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RonF
Top Member

867 Posts

Posted - 04/20/2018 :  11:13:01 AM  Show Profile  Reply with Quote
I have 5 DT's here and for the last year our warranty tech has been here almost week on just these 5 buses. He will be here on Monday for one with SPN 64 Fmi 1 ICP issue. This is the 3rd time in 6 weeks for the same issue. 2 IPR valves have been replaced already. It's twin in December had a turbo, EGR cooler, 1 injector, the entire fuel filter head and dosing valve assembly. Here is one buses warranty issues.

01 - In Warranty ENGINE REGULATOR, INJECTION PRESSURE (IPR) 78505 Miles
0720947B 02/08/2018 RUSH TRK CTR OF GA(610030-010) 39 - Service Contract Expense ENGINE TOWING, OUT OF WARRANTY 78505 Miles
0720948A 02/08/2018 RUSH TRK CTR OF GA(610030-010) 01 - In Warranty ENGINE REPROGRAM ENGINE-CALIBRATION 78505 Miles
0609784A 04/17/2017 RUSH TRK CTR OF GA(610030-010) 01 - In Warranty ENGINE ENGINE MECH/ELECT FUEL LIFT PUMP 65971 Miles
0609784B 04/17/2017 RUSH TRK CTR OF GA(610030-010) 39 - Service Contract Expense ENGINE TOWING, OUT OF WARRANTY 65971 Miles
0578603A 02/03/2017 RUSH TRK CTR OF GA(610030-010) 40 - Authorized Safety Recall or Field Change Code: 16510 60739 Miles
0592260A 02/03/2017 RUSH TRK CTR OF GA(610030-010) 01 - In Warranty ENGINE VALVE, BOOST CONTROL SOLENOID 62640 Miles
0592260B 02/03/2017 RUSH TRK CTR OF GA(610030-010) 39 - Service Contract Expense ENGINE TOWING, OUT OF WARRANTY 62640 Miles
0592331A 02/03/2017 RUSH TRK CTR OF GA(610030-010) 01 - In Warranty ENGINE INTAKE THROTTLE MODULE 62640 Miles
0592332A 02/03/2017 RUSH TRK CTR OF GA(610030-010) 01 - In Warranty ENGINE MODULE, AFTERTREATMENT FUEL CONTROL 62640 Miles
0507934A 07/13/2016 RUSH TRK CTR OF GA(610030-005) 01 - In Warranty ENGINE VALVE, EXH.REGULATOR (INC ACTUATOR & HOSE) 49707 Miles
0507934B 07/13/2016 RUSH TRK CTR OF GA(610030-005) 39 - Service Contract Expense ENGINE TOWING, OUT OF WARRANTY 49707 Miles
0464511A 05/11/2016 RUSH TRK CTR OF GA(610030-005) 01 - In Warranty ENGINE INJECTOR UNIT (ELECTRICAL) 48169 Miles
0464511B 05/11/2016 RUSH TRK CTR OF GA(610030-005) 39 - Service Contract Expense ENGINE TOWING, OUT OF WARRANTY 48169 Miles
0464512A 05/11/2016 RUSH TRK CTR OF GA(610030-005) 01 - In Warranty ENGINE SENDER, MANIFOLD ABSOLUTE PRESSURE (MAP) 48169 Miles
0482011A 04/22/2016 RUSH TRK CTR OF GA(610030-005) 01 - In Warranty ENGINE BOOST CONTROL DUMP GATE, ACTUATOR, HOSE 46660 Miles
0482011B 04/22/2016 RUSH TRK CTR OF GA(610030-005) 39 - Service Contract Expense ENGINE TOWING, OUT OF WARRANTY 46660 Miles
0431661A 01/25/2016 RUSH TRK CTR OF GA(610030-005) 01 - In Warranty ENGINE REPROGRAM ENGINE-CALIBRATION 40390 Miles
0431661B 01/25/2016 RUSH TRK CTR OF GA(610030-005) 39 - Service Contract Expense ENGINE TOWING, OUT OF WARRANTY 40390 Miles
0395178A 12/07/2015 RUSH TRK CTR OF GA(610030-005) 01 - In Warranty ENGINE SENDER, MANIFOLD ABSOLUTE PRESSURE (MAP) 38087 Miles
0395180A 12/07/2015 RUSH TRK CTR OF GA(610030-005) 01 - In Warranty ENGINE MANIFOLD ASSEMBLY, EXHAUST 38087 Miles
0395290A 12/07/2015 RUSH TRK CTR OF GA(610030-005) 01 - In Warranty ENGINE COOLER,EGR 38087 Miles
0395290B 12/07/2015 RUSH TRK CTR OF GA(610030-005) 39 - Service Contract Expense ENGINE COOLER,EGR 38087 Miles
0360024A 10/08/2015 RUSH TRK CTR OF GA(610030-005) 01 - In Warranty ENGINE INJECTOR UNIT (ELECTRICAL) 34564 Miles
0360024B 10/08/2015 RUSH TRK CTR OF GA(610030-005) 39 - Service Contract Expense ENGINE TOWING, OUT OF WARRANTY 34564 Miles
1339699A 09/01/2015 RUSH TRK CTR OF GA(610030-005) 01 - In Warranty ENGINE REPROGRAM ENGINE-CALIBRATION 31772 Miles
0206713A 12/08/2014 RUSH TRK CTR OF GA(610030-005) 01 - In Warranty ENGINE INJECTOR UNIT (ELECTRICAL) 19099 Miles
0036089A 10/02/2014 ROBERTS INTL TRUCKS(795260-000) 40 - Authorized Safety Recall or Field Change Code: 14503 16493 Miles
0036089B 10/02/2014 ROBERTS INTL TRUCKS(795260-000) 40 - Authorized Safety Recall or Field Change Code: 13519 16493 Miles
0036089C 10/02/2014 ROBERTS INTL TRUCKS(795260-000) 01 - In Warranty ENGINE INJECTOR UNIT (ELECTRICAL) 16493 Miles


That is entirely too much money to spend to keep a bus running. The county I live is just junked a 2012 IC with a MaxxFarce DT, 2010 emissions that went out of warranty but the repairs both in and out of warranty look like that one.

US Army retired CMBT
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torque
Advanced Member

Canada
358 Posts

Posted - 04/20/2018 :  11:19:30 AM  Show Profile  Reply with Quote
quote:
Originally posted by Brad Barker

Ford made changes not because of reliability.
I really dislike people badmouthing a product when in actuality it is just lack of understanding and besides if they didn't break, I'd be out of job.
Best regard to all.


Interesting, I was working at a Ford dealer at the time, that was the story we were told, and there was also something about IH and Ford going to court. but anyways, not going to get into it here.
I never had a problem making the proper diagnostic, and repair the first time with any problems I have had with them.

I suppose you think Trump is great too LOL ;)
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bwest
Administrator

United States
3820 Posts

Posted - 04/20/2018 :  12:35:26 PM  Show Profile  Reply with Quote
Torque, agreed! Except Trump.............

Bryan
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Brad Barker
Administrator

USA
874 Posts

Posted - 04/20/2018 :  4:56:46 PM  Show Profile  Click to see Brad Barker's MSN Messenger address  Reply with Quote
Can anyone relate similar issues with a C7S Cat, John Deere CNG, Cummins ISC or ISL-G, Mercedes MB926 or other? Just curious? I read in this forum frequent complaints about specific items and even bus brands. If we all just had one standard bus to deal with would we be satisfied then? We are continually faced with new and different components to deal with. We do not like a lot of the choices or options we are given. The trick is to adapt to those changes. Agreed , we wonder what the heck were they thinking when they did that. But in the end I have to ask myself, “am I a part of the problem, or a part of the solution”? We have many John Deere CNG buses in our fleet too. Most everyone at my shop hates those as well. Granted they do not produce the torque of the other engines but realizing why they were purchased and what they were intended to do, they are not that bad. All problems we are seeing are made worse if you have limited resouces to handle these problems. We can only do what our resouces allow.

Brad A. Barker
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torque
Advanced Member

Canada
358 Posts

Posted - 04/20/2018 :  5:45:48 PM  Show Profile  Reply with Quote
i Have been in the school bus industry since the early 80's, most of the fleets I have worked for have also been directly or indirectly involved with school bus dealers. I do not know everything, and never will. I have always been at the top, or second of any training I have taken, IH, Ford, Cummins, Allison, you name it. And have way above average engine, electric, computer diagnostic skills. I do know this. Sales were dropping big time for IH, IC, the salesmen said, it was because of the previous problems customers have had with IC then they introduced Cummins option to help this? You say it was emissions, but salesman I know say different. Sounds like you have been brain washed by IH?
In the end, change the wording any way you want, but in the end, people that have, or have had these engines, have been left high and dry, desperate, and have spent tonnes of money on them, with their engines, left without a vehicle they can use. PERIOD. Again, change the wording any way you want, but people with IH engines, school bus or highway tractors.
ANd yes, all vehicle have had their problems, and still do. But no, none have left any fleet I have been with, as desperate as when the majority of our fleet was IH. Just recently I finally convinced my leader to scrap our 365's, finally we are getting caught up in our scheduled maintenance.
Hope this makes sense, I am tired and this has been on my mind too long :)
I am not always the best at relaying my thoughts, sorry.
Bryan, we will discuss Trump later ;) JK ;)
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Mechan1c
Top Member

USA
853 Posts

Posted - 04/20/2018 :  7:33:12 PM  Show Profile  Reply with Quote
I've been doing this long enough to have worked with 534 Fords, 555's, 6.9 and 7.3 IDI's, 3208's, 3116's, 5.9's, 3126's, C7's, 466EGR, MFDT, MF7, and now 6.7's. Pretty good size fleet. Over the years we've had Crown transits, Gillig transits, Carpenter transits, Thomas transits, IC-CE's, and now Bluebird Visions.

Old timers:
534's were the last gasser transits we ran. Had 50 of them. We made 'em work.
The triple nickel; so bad we re-powered them with 3208's. 2nd worst engine I've worked on.
We had about 60 3208's at one time, and they were good workhorses. Did I say smoke?
6.9 and then the 7.3 IDIs were ok. A little tough when they aged. More smoke...

Modern era:
3116's were a pain to adj valves. Still run a few. Again, made 'em work. Less smoke...
3126 a good decent engine, still have 20 of them. 230K getting tired. No smoke.
C7 early KAL engines, about like the 3126.
DT466EGR good workhorse engine. Have 19.
MFDT '07 emissions have 29 of these. Most problems, most attention, & $$$. Smoke returned!
MFDT 2010 emissions have 14 of these. Doing ok, low miles, crossed fingers?
MF7 '07 emissions have 19 of these. Some problems with wiped out cams. Meh...
MF7 2010 emissions have 9, low miles, been ok.
6.7 Cummins 2016-17 have 11. Zero warranty, low miles(25K),pretty happy.

When we went to IC-CE's in '06 we steered clear of the VT365 like the plague they were. I'd been working on CAT powered Thomas buses, and was not happy about going to IC. The DT466EGR was a good choice. These 2006 buses have been some of the best uptime, lowest CPM buses we've run. The chassis/drivetrain have been solid. They had a normal learning curve.

The MFDT's we started getting in '08 have been the polar opposite. Chassis? Still solid. Engines? Like a bottomless pit to toss money into. Same guys, same good oil, same good service intervals, same routes, and the same vocation. Combine this with a complete change in how Navistar, IC, and our dealer approached training and service support, and we've had a perfect storm. For the last 10 years we've had to figure it out on our own. The learning curve has been steep like nothing I've experienced. That's not to say we haven't had individuals really trying to help us solve these problems; Organizationally, not so much. YMMV...
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Mechan1c
Top Member

USA
853 Posts

Posted - 04/20/2018 :  7:46:51 PM  Show Profile  Reply with Quote
Bwest, way back to your original question about the 10" DPF's, it's a larger updated product that also requires reprogramming your ECM. I've never had to replace the DOC at the same time though. We've used the 2611630C91 $3346!!! new, and the 5010852R1 reman at $2200. I've replaced 8 that I had to pay for.

Edited by - Mechan1c on 04/20/2018 7:52:13 PM
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mik
Senior Member

USA
61 Posts

Posted - 04/20/2018 :  7:52:10 PM  Show Profile  Reply with Quote
Seems everything is getting more difficult to keep running & maintain ,
but Navistar IMO is much harder to keep on the road (just my opinion )
suffering from a shady dealer network and automatic denial of warranty claims or
"fix it just enough to get it out of warranty "
Luckily our district only got stuck with one VT365 , but quite a few maxxforce money pits.
as soon as the bus was 500 to 700 miles past the extended warranty they magically needed works kit overhauls .
Even tho they were in the shop many times leading up with the same symptoms , but ( could not duplicate ) or ( replaced one injector ) or a fuel transfer pump .
Now it's out of warranty and they want 10k+ to fix ?"

Yes Cummins & MB need oil & filters changed , wiring issues , ect.. the occasional EGR coolers from time to time
, or a starter .
never had a Cummins or MB fill the crankcase with fuel line a Navistar,(maybe were lucky )
& the dealer tell me the fix is to change the oil more frequently > >

with the low bid mentality of many schools V10's are the clear choice now

why do you think U-haul likes it so much
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RonF
Top Member

867 Posts

Posted - 04/23/2018 :  04:40:44 AM  Show Profile  Reply with Quote
quote:
Originally posted by mik

Seems everything is getting more difficult to keep running & maintain ,
but Navistar IMO is much harder to keep on the road (just my opinion )
suffering from a shady dealer network and automatic denial of warranty claims or
"fix it just enough to get it out of warranty "
Luckily our district only got stuck with one VT365 , but quite a few maxxforce money pits.
as soon as the bus was 500 to 700 miles past the extended warranty they magically needed works kit overhauls .
Even tho they were in the shop many times leading up with the same symptoms , but ( could not duplicate ) or ( replaced one injector ) or a fuel transfer pump .
Now it's out of warranty and they want 10k+ to fix ?"

Yes Cummins & MB need oil & filters changed , wiring issues , ect.. the occasional EGR coolers from time to time
, or a starter .
never had a Cummins or MB fill the crankcase with fuel line a Navistar,(maybe were lucky )
& the dealer tell me the fix is to change the oil more frequently > >

with the low bid mentality of many schools V10's are the clear choice now

why do you think U-haul likes it so much



I will second everything you said about IC and their warranty. I hope to never see another new IC bus bought in our system as long as I am here. I don't what engine they put in it either.

US Army retired CMBT
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JoeHEB1
Advanced Member

498 Posts

Posted - 04/23/2018 :  05:10:50 AM  Show Profile  Visit JoeHEB1's Homepage  Reply with Quote
IC with a PSI gasser is the way to go. About to order a few. Heard nothing but good things from other districts who have them.
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bwest
Administrator

United States
3820 Posts

Posted - 04/23/2018 :  05:44:25 AM  Show Profile  Reply with Quote
quote:
Originally posted by Mechan1c

Bwest, way back to your original question about the 10" DPF's, it's a larger updated product that also requires reprogramming your ECM. I've never had to replace the DOC at the same time though. We've used the 2611630C91 $3346!!! new, and the 5010852R1 reman at $2200. I've replaced 8 that I had to pay for.



Interesting. Still in a holding pattern until I gather more information. I have some other issues that I'm working on with other buses and personal life and we have plenty of spares. So, I'm not worried about letting it stay at the dealer for a few more days. Thanks for all the comments.

Bryan
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Thomasbus24
Administrator

USA
4544 Posts

Posted - 04/23/2018 :  06:42:54 AM  Show Profile  Reply with Quote
quote:
Originally posted by Mechan1c

...Carpenter transits...



You really should be titled as king of the bus people for having to deal with that sort of misery!
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kummins
Active Member

41 Posts

Posted - 04/23/2018 :  12:54:55 PM  Show Profile  Visit kummins's Homepage  Reply with Quote
IH's downfall was Dan Ustian, head of the engine dept back in 2001.
he bet the whole enchilada that his engine techs could build an epa compliant engine without any aftertreatment, because they were the "best engine builders in the world".

every time they failed, he sent them back to the drawing board to start over, rather than do what everyone else was doing. that's why there are so many different engine configurations, especially with the dt's/maxforces... all of them junk

this is a great article in forbes magazine back in 2012...

https://www.forbes.com/sites/joannmuller/2012/08/02/death-by-hubris-the-catastrophic-decision-that-could-bankrupt-a-great-american-manufacturer/#4171b0dc6fbb


https://www.forbes.com/sites/joannmuller/2012/08/31/navistar-starts-paying-the-piper-for-its-costly-strategic-mistake/#2294482420b7




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