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I have a 2015 Mack chu613 with MP8 motor, at times engine
I have a 2015 Mack chu613 with MP8 motor, at times engine will crank but not turnover. I was driving down the road and lost power, my RPM no higher than 1200 and dropped from there, engine shutdown, w… read more
Mike Mcmillan
Mike Mcmillan
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4,295 satisfied customers
Have a 2012 mack cxu613 mp8. Having trouble starting. Had
Have a 2012 mack cxu613 mp8. Having trouble starting. Had been priming filter by pushing the plunger on filter housing for 10-15 minutes it would eventually crank. Taken off line going to pressure rel… read more
Mike Mcmillan
Mike Mcmillan
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4,295 satisfied customers
I have a Mack SXU VISION 2014 with motor D13 MP8. I have a
Hi, I have a Mack SXU VISION 2014 with motor D13 MP8. I have a leak in the exhaust leak with the smell of oil and gasoline I have checked the head and the turbo, and both are good Does anyone know wha… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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4,295 satisfied customers
My truck was deleted over a year ago. He couldn't delete the
My truck was deleted over a year ago. He couldn't delete the egr valve on that particular truck. Trucks has lost tremendous amount of power almost like starving for air or fuel. Mack place cant figure… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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4,295 satisfied customers
Have a 2014 mack. Changed the ignition switch a few days
Have a 2014 mack. Changed the ignition switch a few days ago. Drove the truck home it sat a few days now it turns over and not start.… read more
Bradey V
Bradey V
Certificate
2012 Mack mp8, fuel filter base/housing has a manual pump to
2012 Mack mp8, fuel filter base/housing has a manual pump to fill filters manually, that manual pump will not stay in … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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4,295 satisfied customers
2012 MACK MP8 ENGINE WERE IS THE CHECK VALVE FOR FUEL SYSTEM
2012 MACK MP8 ENGINE WERE IS THE CHECK VALVE FOR FUEL SYSTEM TRUCK BLEEDS BACK FUEL AFTER SITTING AWILE… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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4,295 satisfied customers
Gday. I have a Mack trident 2010. The display is showing
Gday. I have a Mack trident 2010. The display is showing fluctuating voltage from 10-13volts. Measuring with multimeter 12.8 at batteries 12.6 at fuse main power supply … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
4,295 satisfied customers
2009 Mack GU713 with a MP8-425M Hard start when sits
Second opinion] 2009 Mack GU713 with a MP8-425M Hard start when sits overnight cranks over then shuts off … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I have a mp8 Mack with rough idle but runs good at full
I have a mp8 Mack with rough idle but runs good at full speed … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
4,295 satisfied customers
We put stainless injector cups with new injectors in a 2015
We put stainless injector cups with new injectors in a 2015 MP8 engine. We have all the trim codes programmed and it still will not crank. Turns over fine and the system is primed any help? … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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4,295 satisfied customers
Have 05 mack vision 427 engine i m loosing power dont have
Have 05 mack vision 427 engine i m loosing power dont have top end pulling power put new turbo on running atleast 30 lbs boost didnt fix it put new nozzles on 3 tested bad so didnt check other 3 just … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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4,295 satisfied customers
I got a 2017 mack mp8 445 and i have a fault code SPN 5357
Hi i got a 2017 mack mp8 445 and i have a fault code SPN 5357 FMI17 it says fuel injection quiantaty error for multiple cylinders … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
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4,295 satisfied customers
2012 mack with a mp8 runs fine until put under a load then
2012 mack with a mp8 runs fine until put under a load then dies restarts easily idles fine … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
4,295 satisfied customers
HAVE A 2011 GXU 613 MACK MP8 ENGINE FUEL LEAK DOWN OVERNIGHT
HAVE A 2011 GXU 613 MACK MP8 ENGINE FUEL LEAK DOWN OVERNIGHT REPLACED FILTER BASE TRYING TO FIND OUT IF FUEL SHOULD COME OUT OF RETURN FUEL LINE WHILE PRIMING FILTERS THE PRIMER VALVE WAS LEAKING FUEL… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
4,295 satisfied customers
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
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Got a 2009 mack gu713 when it gets hot and you shut it off
got a 2009 mack gu713 when it gets hot and you shut it off will crack for every and not start again only when hot not building fuel pressure let sit for awhile and cool off starts right back up … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I'm looking at a 2012 CXU613. Has the MP8, Fuller RTL018918B,
I'm looking at a 2012 CXU613. Has the MP8, Fuller RTL018918B, and 3.58 rears. What problems do I need to know about the MP8 regarding reliability, fuel/oil consumption? Any valve train or after treatm… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 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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