97 Freightliner Cummins M11 Celect Plus
Yesterday, (Subject: 97 Freightliner Cummins M11 Celect Plus ) 
Post: #1
97 Freightliner Cummins M11 Celect Plus
Was wondering or if anyone can help me on this ecm? Anyways its a M11 celect plus and was randomly shutting down. I looked but couldnt come up with anything though I thought could be fuel shut off solenoid or the Engine position sensor if memory serves me right. Ive been busy and a local guy I know looked at it and started it and started idling rough smoking black and never seen that happen he came back and after turning key on was making noise like a chatter or clicking so he tapped the ecm and it stopped. I have not been able to look yet but if it is the ecm how do I go about that? Buy the right ecm according to part number from online somewhere and then is it possible to download the program off my original as a backup and create ecm image? Is it possible to then program to an ecm im able to find as long as the part numbers match up? Thanks for any replys.
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Yesterday, (Subject: 97 Freightliner Cummins M11 Celect Plus ) 
Post: #2
RE: 97 Freightliner Cummins M11 Celect Plus
First of all, this machine is nearly 30 years old? Does your income depend on it or is it jut a farm truck? What other troubles it has? Is it worth to fix it properly? How is the frame rust wise? How is the electrical wiring (if there have been oil leaks then there is dirt attracted and it will rub through wires eventually due to all of those vibrations) Also there is even no need for oil leaks, wiring harnesses can rub through with dirt only since this thing is nearly 30 years old.


If it is indeed ECM then only proper option is to buy brand new (or cummins reman) from official dealer and HAVE them reflash the ecm with proper data to your truck. If the ECM is really expensive then it may make more financial sense to buy newer truck that will cost you less money in the long run! If it is indeed a farm truck and having it INoperable for weeks or months is not a problem you can gamble with used ecm is if they are cheap...

If you can do all the work and can get parts for reasonable price (or have parts truck) AND it your income does not depend on it AND you do not count time spent fixing as an expense then yes those things can be fixed and keep running. But if you have to take it to somebody to have those things done than those old trucks are financially totalled. But for some reason that old equipment can fetch quite big dollar since there is like a cult following of people who are afraid of modern, more reliable and more efficient equipment.
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Yesterday, (Subject: 97 Freightliner Cummins M11 Celect Plus ) 
Post: #3
RE: 97 Freightliner Cummins M11 Celect Plus
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Yesterday, (Subject: 97 Freightliner Cummins M11 Celect Plus ) 
Post: #4
RE: 97 Freightliner Cummins M11 Celect Plus
(Yesterday )mikkhh Wrote:  First of all, this machine is nearly 30 years old? Does your income depend on it or is it jut a farm truck? What other troubles it has? Is it worth to fix it properly? How is the frame rust wise? How is the electrical wiring (if there have been oil leaks then there is dirt attracted and it will rub through wires eventually due to all of those vibrations) Also there is even no need for oil leaks, wiring harnesses can rub through with dirt only since this thing is nearly 30 years old.


If it is indeed ECM then only proper option is to buy brand new (or cummins reman) from official dealer and HAVE them reflash the ecm with proper data to your truck. If the ECM is really expensive then it may make more financial sense to buy newer truck that will cost you less money in the long run! If it is indeed a farm truck and having it INoperable for weeks or months is not a problem you can gamble with used ecm is if they are cheap...

If you can do all the work and can get parts for reasonable price (or have parts truck) AND it your income does not depend on it AND you do not count time spent fixing as an expense then yes those things can be fixed and keep running. But if you have to take it to somebody to have those things done than those old trucks are financially totalled. But for some reason that old equipment can fetch quite big dollar since there is like a cult following of people who are afraid of modern, more reliable and more efficient equipment.

Well looks like my reply didnt work but this is a farm truck I will call cummins but was told they don't support the ecms anymore on those. As far as this truck I believe was 12-13k and have had for some time and has hauled alot of grain with a recent head gasket is all we have done it may have been overhauled before we got. Obviously the maintenance and some small items like alternator and starter and a ground been replaced but overall makes way more sense keep this going and thats why the older hold value as the newer for farms just tougher cost wise to own. As people try deletes your round trips are not far so no proper regens it seems though if keeping up may be ok just more sitting and idling.
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Yesterday, (Subject: 97 Freightliner Cummins M11 Celect Plus ) 
Post: #5
RE: 97 Freightliner Cummins M11 Celect Plus
Older stuff and lack of quality parts is making repairs way harder and way costlier than they could be.

You mentioned head gasket replacement ? Did it leak internally or externally?

In order to fix that old equipment without the breaking the bank you need to have lots of time available, it helps if you have not only mechanics skills but also machinist skills and equipment. In your case you also need electronics repair skills to fix ecm. Most remans are junk and do not work. Sometimes when you fix the problem correctly new problem can come and wipe down the ecm. Inside ecm is like a small town, circuit board is populated with traces that are like roads and lots of components that are like houses, trees, industrial buildings, even power plants you name it. You may fix one industrial building or power plant (mosfet) and some roads (traces) but even the next day fire may start at some random house. Friend of mine tried fixing newer CM2250 ecm, well he succeeded (took couple of days to find fault and to fix it ), BUT in less than a week the ecm failed again with ceramic capacitor short that burned the circuit board that was completely unrelated to the previous fault. The thing is that repair and troubleshooting skills are worth way more on labour market than just piling them down on endless hours of repairs on old tired and beaten up equipment. If you have the time and skills it makes sense to learn on newer equipment that can be had for reasonable price since it is "too complex".

Most of the times that old tired equipment can be sold off for way more (usually to overseas buyers) than it is actually worth and for the same money you can buy something that is more modern and more efficient and more reliable (if you look over things and keep an eye on the machine).


Little bit offtopic and background story.

I have been looking at used heavy equipment just as hobby and the reality around here is that 10 year old "modern and complex and expensive to maintain" machine can be had sometimes for less than 30 year old okayish condition "reliable and cheap to maintain" old iron that is beyond tired and there is all kinds of troubles finding parts that are needed, since most original parts are either way more expensive than on newer counterparts or just discontinued and aftermarket parts are either junk or not available.
Same story with telehandlers, I paid less for 10 year old machine that has the latest generation commonrail engine than 30 year old completely beaten up old almost no electronics machines cost. I also bought myself nearly 30 year old mini excavator, since the price there was really good compared to what these machines usually cost (they keep their value very well, if I would want to make money running those I would buy brand new ones since the resale value is good). It was running, but machine is completely tired like all of them. Almost every pin and bushing is done, undercarriage bearings are shot. Engine had to be rebuilt, but it does not have rust issues like most of those older machines have. Luckily most needed parts are available, but genuine oem hydraulic filter is not available, I have to buy aftermarket ones.


For example my recent experience with commercial diesel lawn mower shut off solenoid. Original 30 year old part finally failed. Original new part costs like 300bucks, aftermarket is 30. That new part did not last more than two months until the solenoid let out electronics smelling smoke. And this unit was used maximum 2 hours per week.

There is another 30 year old commercial mower that I am fixing (had snapped oil pump shaft and spun rod bearing, needed to freshen up the engine to last many many years to come, buying all new parts would have had astronomical cost so I just replaced only parts that had to be replaced (bearings, gaskets) and kept old pistons, piston rings since they were fine and did not have more than acceptable wear. I forgot to order oil pump shaft when I ordered the bearings and since the machine was old those bearings had to be imported from japan and it took TWO months, I had new oil pump shaft turned from crmo steel). The engine that originally let the whole machine down was now running better than it had been running for a long time (I also ground valves and had valve seats recut) and then the other issues popped out. Pulley splines were worn. New pulleys ARE NOT AVAILABLE from dealer and there is no aftermarket option. Also those splines were not metric or imperial standard so it means in the future new pulleys with splines have to be custom made and it is not cheap. Even regular maintenance items like brake shoes ARE NOT AVAILABLE.
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Yesterday, (Subject: 97 Freightliner Cummins M11 Celect Plus ) 
Post: #6
RE: 97 Freightliner Cummins M11 Celect Plus
(Yesterday )mikkhh Wrote:  Older stuff and lack of quality parts is making repairs way harder and way costlier than they could be.

You mentioned head gasket replacement ? Did it leak internally or externally?

In order to fix that old equipment without the breaking the bank you need to have lots of time available, it helps if you have not only mechanics skills but also machinist skills and equipment. In your case you also need electronics repair skills to fix ecm. Most remans are junk and do not work. Sometimes when you fix the problem correctly new problem can come and wipe down the ecm. Inside ecm is like a small town, circuit board is populated with traces that are like roads and lots of components that are like houses, trees, industrial buildings, even power plants you name it. You may fix one industrial building or power plant (mosfet) and some roads (traces) but even the next day fire may start at some random house. Friend of mine tried fixing newer CM2250 ecm, well he succeeded (took couple of days to find fault and to fix it ), BUT in less than a week the ecm failed again with ceramic capacitor short that burned the circuit board that was completely unrelated to the previous fault. The thing is that repair and troubleshooting skills are worth way more on labour market than just piling them down on endless hours of repairs on old tired and beaten up equipment. If you have the time and skills it makes sense to learn on newer equipment that can be had for reasonable price since it is "too complex".

Most of the times that old tired equipment can be sold off for way more (usually to overseas buyers) than it is actually worth and for the same money you can buy something that is more modern and more efficient and more reliable (if you look over things and keep an eye on the machine).


Little bit offtopic and background story.

I have been looking at used heavy equipment just as hobby and the reality around here is that 10 year old "modern and complex and expensive to maintain" machine can be had sometimes for less than 30 year old okayish condition "reliable and cheap to maintain" old iron that is beyond tired and there is all kinds of troubles finding parts that are needed, since most original parts are either way more expensive than on newer counterparts or just discontinued and aftermarket parts are either junk or not available.
Same story with telehandlers, I paid less for 10 year old machine that has the latest generation commonrail engine than 30 year old completely beaten up old almost no electronics machines cost. I also bought myself nearly 30 year old mini excavator, since the price there was really good compared to what these machines usually cost (they keep their value very well, if I would want to make money running those I would buy brand new ones since the resale value is good). It was running, but machine is completely tired like all of them. Almost every pin and bushing is done, undercarriage bearings are shot. Engine had to be rebuilt, but it does not have rust issues like most of those older machines have. Luckily most needed parts are available, but genuine oem hydraulic filter is not available, I have to buy aftermarket ones.


For example my recent experience with commercial diesel lawn mower shut off solenoid. Original 30 year old part finally failed. Original new part costs like 300bucks, aftermarket is 30. That new part did not last more than two months until the solenoid let out electronics smelling smoke. And this unit was used maximum 2 hours per week.

There is another 30 year old commercial mower that I am fixing (had snapped oil pump shaft and spun rod bearing, needed to freshen up the engine to last many many years to come, buying all new parts would have had astronomical cost so I just replaced only parts that had to be replaced (bearings, gaskets) and kept old pistons, piston rings since they were fine and did not have more than acceptable wear. I forgot to order oil pump shaft when I ordered the bearings and since the machine was old those bearings had to be imported from japan and it took TWO months, I had new oil pump shaft turned from crmo steel). The engine that originally let the whole machine down was now running better than it had been running for a long time (I also ground valves and had valve seats recut) and then the other issues popped out. Pulley splines were worn. New pulleys ARE NOT AVAILABLE from dealer and there is no aftermarket option. Also those splines were not metric or imperial standard so it means in the future new pulleys with splines have to be custom made and it is not cheap. Even regular maintenance items like brake shoes ARE NOT AVAILABLE.

Yes was an external leak. And yes I do have I guess more modern trucks a couple anyways well maybe not modern now ha but semis on farms don't get many miles id say 15K max so when def dpf any sensors really just the small stuff truly adds up fast for these. Guess just wondering if its a possibility.
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Today, (Subject: 97 Freightliner Cummins M11 Celect Plus ) 
Post: #7
RE: 97 Freightliner Cummins M11 Celect Plus
Was the liner height correct on this engine? Did somebody check it when head gasket was replaced?

Here is information about rebuilds on newer engines (the main principles are still the same, both that m11 and newer engines have mid stop liners, although lower power levels make dropped liners less common)
https://rawze.com/forums/showthread.php?...6#pid70606
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 Thanks given by: Rawze




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