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Topic: M11 ECM problem?? (Read 719 times) previous topic - next topic

M11 ECM problem??

Looking for suggestions for my M11 ECM. Has anyone had to replace it due to mysterious problems? It goes into 50 mph limp mode after 200 miles of driving. Suspect it derates the engine performance due to an unkown problem - external or internal to the ECM.
Jim
2002 U320
Jim Frerichs
2002 U320 42'

Re: M11 ECM problem??

Reply #1 –
Do you have a SIlverleaf? If so, is it reporting an error code? If not could you borrow one for a short period of time?
Walt, Dawn, Matt & the Poodles
99 36' U320 #5515 MC #17977 "Axle"
Not All Who Wander Are Lost (not original but I like it)

Re: M11 ECM problem??

Reply #2 –
Could be the output speed sensor failing rater than the ECM.

Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: M11 ECM problem??

Reply #3 –
Call ECU King, Santa Fe, TX at 409/027-1800.  Ship it to them and they will diagnose and fix any and all engine computer problems, all makes.

Gave my M11 to them one day, picked up the next day.  Rebuilt the computer card and the power card.  Said I had a virtually new ECU.  Worked great.
Rudy Legett
2003 U320 4010 ISM 450 hp
2001 U320 4220 ISM 450 hp
1995 U320 M11 400 hp
1990 Granvilla 300 hp 3208T
Aqua Hot Service Houston and Southeast Texas

Re: M11 ECM problem??

Reply #4 –
Sounds to me like a sensor getting hot and becoming unstable. I just replaced the engine speed sensors( cam and crank) due to intermittent codes. When processors fail they usually fail completely. Have you checked for any fault codes?
Bruce, Linda, and Macy
Zoey RIP 1/20/19
1999 U295 40' build #5400
2017 silver Jeep Wrangler, 1260 watts of solar on top
Moving around the country

Re: M11 ECM problem??

Reply #5 –
Quote from: Rudy –
Call ECU King, Santa Fe, TX at 409/027-1800.  Ship it to them and they will diagnose and fix any and all engine computer problems, all makes.

Gave my M11 to them one day, picked up the next day.  Rebuilt the computer card and the power card.  Said I had a virtually new ECU.  Worked great.
When I was looking for a ECM I too contacted ECU king. They told me they didn't do repairs to the actual card and only provided reprogramming of your ecm. I inquired about this and that is all I could could find elsewhere. Cummins Mexico was the only provider that had rebuilt units and they were like $2600 each without programming another $600. All I'm saying is ask and confirm what they are doing.
Scott

Re: M11 ECM problem??

Reply #6 –
Scott,  Just got off of phone with ECU King.  The repair of a M11 computer is no problem.  That is the computer they repaired for me.

The ISM, ISX,ISL computers are sometimes repairable but other times not what they can fix.  Depends on where in the computer the problem lies.  In the case of a no fixer.  They can offer a "Take Off" computer from a parted out truck that they have programmed, checked out and warrantied for one year for $800.
Rudy Legett
2003 U320 4010 ISM 450 hp
2001 U320 4220 ISM 450 hp
1995 U320 M11 400 hp
1990 Granvilla 300 hp 3208T
Aqua Hot Service Houston and Southeast Texas
 

Re: M11 ECM problem??

Reply #7 –
Quote from: Rudy –
Scott,  Just got off of phone with ECU King.  The repair of a M11 computer is no problem.  That is the computer they repaired for me.

The ISM, ISX,ISL computers are sometimes repairable but other times not what they can fix.  Depends on where in the computer the problem lies.  In the case of a no fixer.  They can offer a "Take Off" computer from a parted out truck that they have programmed, checked out and warrantied for one year for $800.
That is outstanding. Non were available when I needed mine. I really like having spare parts for anything that can leave me stranded on the side of the road. My lifetime warranty ECM is worthless if it fails again. It shows to have 850k on the clock. It works great but has always been in the back of my mind as a weak link. Crank sensor, low coolant sensor already in my spares I carry. One day a spare ECM will also join them riding around just giving me peace of mind. $800 and pre-programmed is a bargain IMO. Thanks again Rudy
Scott