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Related Medium and Heavy Trucks Questions
2015 f650 cummins 6 7. Truck currently not throwing codes
2015 f650 cummins 6 7. Truck currently not throwing codes but when attempting forced regen the engine state will cycle from regeneration to air/fuel derate with the rpms picking up and then dropping r… read more
Joe
Joe
Service Technician
Associate Degree
854 satisfied customers
2015 f650 with Cummins 6.7 esn 73734699. Most recently truck
2015 f650 with Cummins 6.7 esn 73734699. Most recently truck has poor performance with cel codes including 3596 def pressure, 1896 egr controller out of calib, 3714 derate. Note that 2 days prior to t… read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
7 satisfied customers
I'm not using any def fluid. I topped off the def tank and
I'm not using any def fluid. I topped off the def tank and drove about 350 miles. The dash said regeneration required, so I did a parked regen. After the regen was completed I started driving and noti… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
Spn 3251 fmi o says 3251-0 implausible or missing signal.
spn 3251 fmi o says 3251-0 implausible or missing signal. 2015 kenworth esn 73886896 vin *****************, within 20 seconds of start up STOP ENGINE IMMEDIATELY warning comes up along with check engi… read more
cumminsdr
cumminsdr
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High School or GED
1,700 satisfied customers
ISX 425 st not getting hot enough only 480 degrees on the
ISX 425 st not getting hot enough only 480 degrees on the regen replaced turbo seems its not getting enough fuel very poor/weak Regen. … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
2013 peterbilt 385 w Cummins ISX 450 hp. Recently replaced
2013 peterbilt 385 w Cummins ISX 450 hp. Recently replaced dpf filter and repaired exhaust leak. Truck runs fine until under a load for about 20 miles. Then u get check engine lights. Both w and witho… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 satisfied customers
Have a t680 having to do a manual Regen two days in roll
Have a t680 having to do a manual Regen two days in roll now … read more
roybelding
roybelding
Shop Foreman Freightliner trucks
12,321 satisfied customers
I have 2 engine fault codes. SPN 3936 FMI 15 & SPN 1569 FMI
I have 2 engine fault codes. SPN 3936 FMI 15 & SPN 1569 FMI 31.. 2016 Freightliner cascadia, Cummins is engine. … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
430 satisfied customers
I have a 2010 Prostar Cummins ISX 435 with a solid Regen
I have a 2010 Prostar Cummins ISX 435 with a solid Regen light I tried to do park Regen didn't work andthe check engine light come and then goes off has a code sid 324 any help would be great… read more
Alex Olsen
Alex Olsen
auto/diesel/industrial
524 satisfied customers
Spn 1569 fmi 31 is showing, I got a 2012 587 Cummins isx. I
Spn 1569 fmi 31 is showing, I got a 2012 Peter 587 Cummins isx. I replace a lot of parts already and I'm loosing power … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a 2015 Kenworth with a Cummins engine. It came in
I have a 2015 Kenworth with a Cummins engine. It came in with SPN 4094 FMI 31 code showing. I found the flex pipe broken in half under the cab. replaced it with new one and now have SPN 5246 FMI 0 and… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
Cummins ISL9 regening too often. I have been working on this
Cummins ISL9 regening too often. I have been working on this bus on and off for several months. It is trying to actively regen around every 2 hours. ISL9 CM2250 engine serial# ***** ECM code CB90010.4… read more
Alex Olsen
Alex Olsen
auto/diesel/industrial
524 satisfied customers
Just had the DPF cleaned, changed some sensors due to a
just had the DPF cleaned, changed some sensors due to a fault number 3582, got back on the road and the check engine light came back with the same fault, I'm driving back home loaded and hoping for th… read more
roybelding
roybelding
Shop Foreman Freightliner trucks
12,321 satisfied customers
Working on a international pro start Cummins 2010 truck came
Hello sir working on a international pro start Cummins 2010 truck came in with no power and seem to die out replaced the dpf filter it was clogged and broken reset the ecm with a new dpf and truck see… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
Dr Cummins we have a freightliner m2 partybus at the
Dr Cummins we have a freightliner m2 partybus at the shop that came with amber and red engine lights .engine is cummins isl and there are 2 codes presented at the time of inspection 1: egr out of cali… read more
cumminsdr
cumminsdr
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High School or GED
1,700 satisfied customers
I have a 2013 Peterbilt with a 550 ISX. It has 3700 hrs on
I have a 2013 Peterbilt with a 550 ISX. It has 3700 hrs on it and the DPF filter was cleaned at 2700 hrs. A couple of weeks ago it threw a code 3251 (particulate trap 1 pressure). I had a mechanic for… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
Constant problems with regeneration right now it regents for
Constant problems with regeneration right now it regents for 1hour off 1hour truck still has plenty of power 2010 peterbilt model 335 cummins motor… read more
Geoff
Geoff
BS
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2010 cummins isx15 cm2250 two signs on display screen: (1)
2010 cummins isx15 cm2250 two signs on display screen: (1) boost pressure (2) engine derated… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 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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