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I have a 2014 MACK CHU with an MP8 engine,it crank but it
Hi I have a 2014 MACK CHU with an MP8 engine,it crank but it won't start I check fuel pressure,filters and the tanks putting air in system checking if any obstructions but everything was alright,it se… read more
Mike D
Mike D
Mechanic Shop foreman
diesel technology
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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
Mike Mcmillan
Mike Mcmillan
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2008 Mack Granite with MP8. *****************. I need the
2008 Mack Granite with MP8. *****************. I need the troubleshooting flow chart for PID 94 FMI 7… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
High oil temp Mack mp8. New oil no codes. 2014 chu. Water
High oil temp Mack mp8 JA: When was your last oil change? Have any error codes popped up? Customer: New oil no codes JA: What's the make, model, and year of your car? Customer: 2014 chu JA: Is there a… read more
Mike Mcmillan
Mike Mcmillan
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We have a 2008 Mack 618 CHU with MP8, truck dies in 9th and
We have a 2008 Mack 618 CHU with MP8, truck dies in 9th and 10th gear on road. Have replaced all the fuel lines and fuel pump and fuel filters and housing. Any ideas?… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
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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
Triage Tech/Shop Foreman
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I had a fan belt break on my 2008 Mack CHU613 Pinnacle and
I had a fan belt break on my 2008 Mack CHU613 Pinnacle and the connected for the fan side control clutch ripped off. I need to know how to rewire without buying the entire assembly. … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
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I have a 2017 Mack/CHU. With an engine light on. The codes
I have a 2017 Mack/CHU. With an engine light on. The codes that come up are P24D1, P24AF, P249F and P24AO. The first I'm pretty sure is for a PM sensor. … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
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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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2014 mack pinnacle with a mp8. What is the best way to
2014 mack pinnacle with a mp8 . What is the best way to remove the air compressor … read more
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Mike Mcmillan
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After having a quacolmm instaled in a Mack CXU with a MP8
Hello,After having a quacolmm instaled in a Mack CXU with a MP8 engine the jake brake and cruise control has quit working. … read more
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Mike Mcmillan
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My Mack mp8 is losing power under load turbo seem to be
Hi My Mack mp8 is losing power under load turbo seem to be showing boost no active codes but has inactive codes mid128 Psid44 fim14 and mid128 psid45 fim14 and they will not clear … read more
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I have a Mack chu 2008 mp8 motor... engine will not go 1500
I have a Mack chu 2008 mp8 motor... engine will not go 1500 rpm's … read more
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I recently retuned my MP8 deleted the DPF and egr and gave
I recently retuned my MP8 deleted the DPF and egr and gave it 48 more hp it now doesn't want to pull can hardly make 100 km per hour loaded … read more
Daniel Wilson
Daniel Wilson
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Having problems with the DEF system on a Mack MP8 2013 year
Having problems with the DEF system on a Mack MP8 2013 year Model How do I deleat the system … read more
cumminsdr
cumminsdr
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2011 Mack CHU-613 Mack MP8 will not crank. When I turn the
2011 Mack CHU-613 Mack MP8 will not crank. When I turn the ignition switch I can hear the relay click on top of dash relay panel but I do not get voltage to starter. I have good battery voltage at sta… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I have a 2010 Mack chu truck mp8 engine that quit going down
I have a 2010 Mack chu truck mp8 engine that quit going down road backfired and shut down it won't crank over checked every fuse powe to dash has codes of mid140ppid278fmi9 def gage reads empty but fu… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
We have a 2008 Mack chu 613. The codes keep coming up on sensors
We have a 2008 Mack chu 613. The codes keep coming up on sensors that we already replaced. We have heard from others that there was a big problem with the wiring on that year...do you have any informa… read more
spankyjr1
spankyjr1
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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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