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Related Medium and Heavy Trucks Questions
2016 MT55 FL with 6.7 ISB.I have 3715 and 3714 codes only,
2016 MT55 FL with 6.7 ISB.I have 3715 and 3714 codes only … read more
Nich1019
Nich1019
Cummins/Caterpillar Technician
Vocational, Technical or Trade School
2,845 satisfied customers
I have a cummins isb 6.7 with codes 3543 NOX limits have
i have a cummins isb 6.7 with codes 3543 NOX limits have been exceeded due to poor def quality. and o have code 3582 aftertreatment 1 scr conversion efficiency. valid data , but below normal operation… read more
Nich1019
Nich1019
Cummins/Caterpillar Technician
Vocational, Technical or Trade School
2,845 satisfied customers
I have a 2015 Freightliner m21 with Cummins ISB. I recently
Hi I have a 2015 Freightliner m21 with Cummins ISB. I recently got fault codes: SPN 1569 FMI 31 (OEM fault 3714), SPN 4094 FMI 31 (OEM fault 3543), SPN 4364 FMI 18 (OEM fault 3582) and SPN 5246 FMI 0 … read more
Joe Green
Joe Green
71 satisfied customers
I have a 2016 freightliner M2 with a cummins ISB. The truck
I have a 2016 freightliner M2 with a cummins ISB. The truck is in derate and the DEF orange dot is blinking where the def gage is. I have cummins insite. I plugged in and found that the guy before me … read more
Nich1019
Nich1019
Cummins/Caterpillar Technician
Vocational, Technical or Trade School
2,845 satisfied customers
I have a 2014 M2 freightliner with an ISL9 Cummins. replaced
i have a 2014 M2 freightliner with an ISL9 Cummins. replaced bad DEF pump after it was towed in because of derate. Insite shows codes 3712 and3714, both informational codes. I have no other codes acco… read more
BrentR718
BrentR718
14 satisfied customers
I have a 2012 freightliner mt45 with a cummins isb 6.7
I have a 2012 freightliner mt45 with a cummins isb 6.7 cm2250 and getting code 3712 and 3714 and 1942 it came in with a bad turbo replaced turbo and vgt recalibrated it and performed regen truck left … read more
Nich1019
Nich1019
Cummins/Caterpillar Technician
Vocational, Technical or Trade School
2,845 satisfied customers
I have a 2016 freightliner HDJE6489 the def tank is full but
I have a 2016 freightliner HDJE6489 the def tank is full but the yellow light is flashing that it is empty changed fluid ,sending unit, had filters cleaned reset everything performed aftertreatment sc… read more
Joel Bos
Joel Bos
909 satisfied customers
I have a cummins isb with the following codes 3543, 3582,
I have a cummins isb with the following codes 3543, 3582, 3714, 3712, 3748(inactive). ENGINE SERIAL NUMBER IS ***** The def is bought in 2 1/2 gallon jugs and is run in several trucks with no issues. … read more
Nich1019
Nich1019
Cummins/Caterpillar Technician
Vocational, Technical or Trade School
2,845 satisfied customers
Cummins QSF3.8 S/N 89921111 with DTC 3866 SPN 3364 FMI 1,
Cummins QSF3.8 S/N 89921111 with DTC 3866 SPN 3364 FMI 1, DTC 3714 SPN 1569 FMI 31 and DTC 3712 SPN 5246 FMI 0 error codes. Reduced engine functionality is present. DEF was low so refilled but no chan… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 satisfied customers
We have 2013 Freightliner with a Cummins ISB engine, it came
We have 2013 Freightliner with a Cummins ISB engine, it came in with a code for the def fluid temp erratic, unit also went into derate. All codes were inactive when it got to the shop, all codes clear… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
Def light on and bliking but almost full def tank now I am
Def light on and bliking but almost full def tank now I am being derated … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 satisfied customers
I have a 2012 Freightliner M2 that has issues with both
I have a 2012 Freightliner M2 that has issues with both inlet and outlet SCR temperature sensors. Where are they located? … read more
Expert
Expert
10,510 satisfied customers
Got 4 active fault codes in Cummins ISB6.7. AutoCAD ACX
Just troubleshooting through insite before it goes to the shop Codes are 3545, 1682, 3714, 3712 … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
Working on a freightliner m2 came in with a loss of power
working on a freightliner m2 came in with a loss of power issue. we did regen of the system. that went well but the 3712 fmi along with the 3714 code keep coming back. our scanner cannot erase these c… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
Yellow Def light is blinking. Replaced header due to tank
Yellow Def light is blinking. Replaced header due to tank full and only reading 8% now its reading 96% but still blinking. The only code is 3712 blinking but will not clear and I have it in a burn now… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,756 satisfied customers
I have two codes that are active 3712 and 3714, 2016
Hello I have two codes that are active 3712 and 3714 … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 satisfied customers
I have two active codes stored causing defrayed. 3712 and
I have two active codes stored causing defrayed. 3712 and 3714. Cummins isl9 … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 satisfied customers
3712 3714 3582 3543, isb 6.7 2014 mt45, I scan, drain
I scan, drain def,refilled and regen clear codes ok for 3 days then came back … read more
Alex Olsen
Alex Olsen
auto/diesel/industrial
740 satisfied customers
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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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