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Have SPN 5246 Fmi 16 on a mack. 2011 Mack CXU. Mack mp8. I
Have SPN 5246 Fmi 16 on a mack JA: What's the make, model, and year of your heavy truck? Customer: 2011 Mack CXU JA: What's the engine type and size? Customer: Mack mp8 JA: Is there anything else the … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
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Need to do a forced regen on my 2014 mack chu using the Tech
Need to do a forced regen on my 2014 mack chu using the Tech Tool program,is there any videos that can help me … read more
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Mike Mcmillan
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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
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Vocational, Technical or Trade Scho
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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
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I diagnosed Mack mp8 year 2014, the fault code is P20EE FMI
i diagnosed Mack mp8 year 2014, the fault code is P20EE FMI 00 AND P103C FMI OCCURED .what is the possible cause of these codes how to proper diagnose, how to read temp and diff pressure sensor readin… read more
Mike Mcmillan
Mike Mcmillan
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Mack MP8, 2012 with compressor bypass and AHI valve. What is
Mack MP8, 2012 with compressor bypass and AHI valve. What is a reasonable intake manifold pressure during a forced regen?… read more
Mike Mcmillan
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Had to do parked regen after derate. didnt fix the issue. I
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Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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6,301 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
Shop Foreman/Triage Tech
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I'm stuck here with this 2012 Mack with the MP8 Volvo engine
I'm stuck here with this 2012 Mack with the MP8 Volvo engine I have these codes and can't find a way to repair it I can't even force a regen can someone please help. Here is the codes I'm getting on m… read more
Mike Mcmillan
Mike Mcmillan
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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
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2013 Mack Regen temps not not getting high enough to regen.
2013 Mack Regen temps not not getting high enough to regen. … read more
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During regen 2008 mack m mp8 oil comes out breather tube on
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2011 Mack MP8 lost power. Now it turns over good but kicks
2011 Mack MP8 lost power. Now it turns over good but kicks out before it starts … read more
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Mack mp8 2012 in derate no codes no check engine light no
mack mp8 2012 in derate no codes no check engine light no lightening bolt, service def on information screen won't let us take out of derate… read more
Expert
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How can I tell if my fan clutch is working right on a mack
How can I tell if my fan clutch is working right on a mack mp8 engine 2009 … read more
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Second opinion] 2014 mack cxu613 MP8 codes P20EE00 AND
Second opinion] 2014 mack cxu613 MP8 codes P20EE00 AND P207F00 REPLACED BOTH NOX SENSOR,NO CODES NOW BUT CAN NOT REGEN AND TRUCK STILL HAS SERVICE DEF ON INFORMATION SCREEN AND IS DERATED… read more
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2014 mack cxu613 MP8 codes P20EE00 AND P207F00 REPLACED BOTH
2014 mack cxu613 MP8 codes P20EE00 AND P207F00 REPLACED BOTH NOX SENSOR,NO CODES NOW BUT CAN NOT REGEN AND TRUCK STILL HAS SERVICE DEF ON INFORMATION SCREEN AND IS DERATED… read more
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2012 mack mp8 asking for regen after dpf and doc was cleaned
2012 mack mp8 asking for regen after dpf and doc was cleaned and forced into regen afterwards… read more
cumminsdr
cumminsdr
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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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