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Related Medium and Heavy Trucks Questions
2012 Mack CHU613 MP8 engine. Regen temps not going above 600
2012 Mack CHU613 MP8 engine. Regen temps not going above 600 degrees. Only code is SPN 3556 FMI 5 … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
571 satisfied customers
I have a 2015 Mack GU with a MP8. I have no codes. When I
I have a 2015 Mack GU with a MP8. I have no codes. When I try to run a regen or a crystal sub regen. I hit play in PTT. The circle of death turns but the truck will not ramp up. Anyone have this happe… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
I have a 2015 mack mp8 engine that will not stay out of
I have a 2015 mack mp8 engine that will not stay out of derate mode says poor def quality service def we have clleaned filters new in and out senseors doser valve put new vavles behind the starter and… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
571 satisfied customers
Mack 2016 CHU, MP8. Only code is for the daytime head
Mack 2016 CHU, MP8. Only code is for the daytime head lights. No eml or mil on. Checked codes several times and restarted PTT. Truck has Temp system lockout check light on and kicks out of forced rege… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
571 satisfied customers
How are you, i am in very big problem mack truck mp8 cxu613
hi sir how are you, i am in very big problem mack truck mp8 cxu613 one million kms year 2014. fault codes report attached .truck takes regen everyday during the heavy load and some times twice a day. … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
571 satisfied customers
I can't spell or write correctly but i am going to try. 2012
i can't spell or write correctly but i am going to try … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
571 satisfied customers
CUMMINS. GOT A CM871 2009 MODEL. PETERBILT 389. TRUCK SAT
HELLO DR CUMMINS. GOT A CM871 2009 MODEL. PETERBILT 389. TRUCK SAT FOR 4 YEARS, UPON BRINGING TRUCK BACK ON ROAD ADVISED CUSTOMER TO REMOVED DOC AND DPF FOR BAKING, REMOVED AND HAD BOTH DOC AND DPF BA… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,886 satisfied customers
I have a 2018 CHU Mack MP8 engine showing me its @ 140% soot
Hi, i have a 2018 CHU Mack MP8 engine showing me its @ 140% soot level (only code is high soot level) filter only 6 months old try to force regen and outlet temp spikes to 900 and wont go any higher… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
571 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
1,886 satisfied customers
2013 Mack Regen temps not not getting high enough to regen.
2013 Mack Regen temps not not getting high enough to regen. … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
571 satisfied customers
I noticed that Jeremy was online and has extensive
I noticed that Jeremy was online and has extensive experience diagnosing diesel engine problems. I have a 2009 Mack MRU that is producing engine malfunction code PPID 326 FMI 11, and I was wondering i… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
571 satisfied customers
I have a 2013 Peterbilt with a epa 10 mx13 paccar 455 hp and
I have a 2013 Peterbilt with a epa 10 mx13 paccar 455 hp and 13 speed. Recently had truck serviced, dpf and doc baked and cleaned, boost pressure sensor replaced, nox sensors, 7th injector, def inject… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
571 satisfied customers
Fan clutch solenoid valve is constantly leaking air. At
Fan clutch solenoid valve is constantly leaking air. At first only when the key was the on or run position, but since changing the solenoid valve now it leaks constantly.… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
571 satisfied customers
Regenwont. Stop. Regen. 2011 Mack mp8. Muffler came off had
Muffler came off had that mounted properly. Add ed. DPF. Filter. Cleaner … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
I replace dpf filters will it hurt anything if. I keep
I replace dpf filters will it hurt anything if. I keep driving it i been driving it like that for about 3 months… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
I have a 2012 IH Prostar with a Maxxforce that has the stop
I have a 2012 IH Prostar with a Maxxforce that has the stop engine light on but no dpf regen light on. Code is that soot level is at most severe level. Truck won't run regen according to servicemaxx t… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
my truck is in a constant regen all day long. The only time
my truck is in a constant regen all day long. The only time the regen will complete its cycle is at a stop loading or unloading. The last re4gen took 5 1/2 hours to complete. The DPF was cleaned appro… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,756 satisfied customers
I have a 2010 mack cxu 613 with codes MID 128 PPID 326 FMI
I have a 2010 mack cxu 613 with codes MID 128 PPID 326 FMI 11 also had another code MID 128 PPID 270 FMI 5 stop engine light is on and dpf regen light is flashing. We already had the DPF cleaned and w… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

6,062 satisfied customers

Owner at DJ Wilson

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I am ASE Master Truck Certified.

Wayne

Wayne

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worked on, Gmc, Macks, Freight liner,Mercedes Benz,,Ford, sterling

Jeremy

Jeremy

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ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

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Curtis B.

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cumminsdr

cumminsdr

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All types of Cummins applications

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Chris (aka-Moose)

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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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