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Need to talk to a master tech.m It is spitting and
Need to talk to a master tech.m It is spitting and sputtering. … read more
Mike D
Mike D
Mechanic Shop foreman
diesel technology
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Need in depth help on 2008 mp7. Truck will not start has
Truck will not start has lost rpm and oil pressure. Ecm has good power … read more
Mike D
Mike D
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diesel technology
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Mack GU813 vin: ***************** getting codes P006964
Mack GU813 vin: ***************** getting codes P006964 Manifold absolute pressure barometric correlation INACTIVE P02D400 Cylinder 5 injector offset learning at min limit ACTIVE P040B64 EGR temp sens… read more
Mike D
Mike D
Mechanic Shop foreman
diesel technology
2 satisfied customers
I got a 2020 Mack LR trash truck with a mp7 in it. AHI
I got a 2020 Mack LR trash truck with a mp7 in it. AHI module has a code for fuel air purge valve stuck closed. I've checked air supply pressure, checked air tanks, checked hoses for blockage, sensor … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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I have a mack model #gu713 with a mp7 -395c and esn 556804
hello i have a mack model #gu713 with a mp7 -395c and esn 556804 this unit has had a def pump installed new and a hydrocarbon purge vave installed and im getting a code read on an autell of p113300,fm… read more
Mike Mcmillan
Mike Mcmillan
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I have a Mack mru 613 w mp7 engine, 2018 model. My regen
I have a Mack mru 613 w mp7 engine, 2018 model. My regen light started flashing. Regen'ed the truck but the regen light kept flashing. After regen soot level was 132%. Put the truck in PTT and did a s… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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I'm working on a 2014 mack mp7. Vin as follows 016738 model
I'm working on a 2014 mack mp7. Vin as follows 016738 model no gu813. The truck is acts like it I is losing prime and very hard to start. I have to pump it up at primer pump. When it cranks the dpf ge… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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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
Shop Foreman/Triage Tech
Associates
6,627 satisfied customers
2010 mack MP7 450 now in regeneration zone 4 with soot level
2010 mack MP7 450 now in regeneration zone 4 with soot level at 140 % when I start a force regeneration my after treatment fuel injection pressure starts at 65psi but quickly drops to 3psi and my exha… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I have a 2008 volvo with a D13 engine. I'm having an issue
Hey, i have a 2008 volvo with a D13 engine. I'm having an issue where it's not doing the parked regen . Tried once and it took like 50 minutes and it never completed it. So when this happens to me I c… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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Working on 2011mack with a mp7 and will not regen cause of a
working on 2011mack with a mp7 and will not regen cause of a code post-treatment fuel cut off valve what does this mean… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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I have 2 codes on my 2017 Mack Mixer P24F8 FMI:13 After
I have 2 codes on my 2017 Mack MixerP24F8 FMI:13 After treatment. Bleeder Valve. Open circuitP2697 FMI:13 After treatment fuel injector. Open circuitHow do I fix this?… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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I have customer with 2012 Mack CXU with MP7 engine.
I have customer with 2012 Mack CXU with MP7 engine. Vin#*****************, Engine #M744022881. Setting code SPN 5443, FMI 8. Have replaced DEF doser valve, tested wiring & connectors,checked DEF press… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
6,627 satisfied customers
2007 Mack CTP713 stalled after running for a few hours.
2007 Mack CTP713 stalled after running for a few hours. Changed dirty fuel filters, truck would only now start and run for a few seconds then stumble and shut down.… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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1993 Mack e7 300 engine looses fuel prime to first filter
1993 Mack e7 300 engine looses fuel prime to first filter have replaced lift pump, spring was brke in old pump but still loosing fuel to first filter … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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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
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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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
Shop Foreman/Triage Tech
Associates
6,627 satisfied customers
MY MACK 2008 LEU MP7 TRUCK IS CUTTING OUT. WE REPLACED WATER
MY MACK 2008 LEU MP7 TRUCK IS CUTTING OUT. WE REPLACED WATER PUMP, FUEL SENSOR AND THERMOSTAT AND HAD MUFFLER SYSTEM REMOVED AND CLEANED. THE ATC LIGHT IS CONTINUING TO COME ON. WHAT COULD IT BE?… read more
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Fleet Warranty Manager
Vocational, Technical or Trade School
5 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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