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Related Medium and Heavy Trucks Questions
2017 mack mp7 code p113712 oil thermostat short to
2017 mack mp7 code p113712 oil thermostat short to battery..... What is the best way to go about diagnosing this code?… read more
RichardH416
RichardH416
Resident Tech
Associates
53 satisfied customers
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
Associates
530 satisfied customers
My 2008 Mack is showing fuel restrictions and running
My 2008 Mack is showing fuel restrictions and running poorly … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,806 satisfied customers
Working on a 2011 mack mp7 and was wondering where the
working on a 2011 mack mp7 and was wondering where the thermostat bypass valve was truck has active code for it… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
530 satisfied customers
I have a 2013 Mack with an MP7. Having an issue with fuel.
I have a 2013 Mack with an MP7. Having an issue with fuel. We have changed the injectors, injector cups, fuel filter base, pump, cleaned out tank, fuel filters, check valves and replace both hose that… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
530 satisfied customers
2008 GU8 Mack with MP7 engine It will start right up after
2008 GU8 Mack with MP7 engine It will start right up after it sits out in the cold for two day. Take it out and drive it up to temp, park it and shut it down for a few minutes and it cranks for 30 sec… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
530 satisfied customers
Replace clutch housing on a mack mdrive transmission how do
Replace clutch housing on a mack mdrive transmission how do the seal go in, it was broken off? … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
530 satisfied customers
Mp7 starts and runs for few seconds. 07 ctp713 Mp7. Working
Mp7 starts and runs for few seconds JA: What's the make/model/year of your truck? Engine type? Customer: 07 ctp713 Mp7 JA: Are you fixing your truck yourself? What have you tried so far? Customer: Yes… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
530 satisfied customers
I have another Mack mp7 question. I have a garbage truck in
I have another Mack mp7 question. I have a garbage truck in here now, it came in with a low power complaint. Basically it would barely pull its self. Dropped the fuel filters diesel fuel looked like l… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
530 satisfied customers
I ran out off fuel and want to know how to prime it back
I ran out off fuel and want to know how to prime it back after fueling … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
530 satisfied customers
Had fuel leak out of fuel lines off fuel pump. Replaced both
Had fuel leak out of fuel lines off fuel pump. Replaced both lines and now don't want to run only idling and running ruff. … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,806 satisfied customers
I just bought am 08 Mack with the MP7 engine this past
Hello, I just bought am 08 Mack with the MP7 engine this past Saturday. Drove it for about two hours and noticed that it started losing power and acted like it was starved for fuel. Put more fuel in i… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
13,428 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
][\][iCk0411
][\][iCk0411
Fleet Warranty Manager
Vocational, Technical or Trade School
5 satisfied customers
Got a 2007 mack m7 engine the water filter shut off is
got a 2007 mack m7 engine the water filter shut off is leaking any idea how to get apart and repair mack sent a ring and oring to fix but my tech has no idea how it comes apart … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
13,428 satisfied customers
And my name is ***** ***** have international truck DT466 4300
Hi and my name is ***** ***** have international truck DT466 4300 engine. I encountered rough idling this past 2 days in the morning when im trying to warm up my engine. The first day it takes about 7… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
Im having problems with the engine losing prime. the fuel
I'm having problems with the engine losing prime. the fuel filters get sucked dry especially at idle. if you're running it at normal operating speeds it seems to maintain prime but at idle it sucks th… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,806 satisfied customers
2008 Mack MP7 fuel problem, motor acts like it is running out
2008 Mack MP7 fuel problem, motor acts like it is running out of fuel or getting air in it at a idle. As long as you keep rpm's up it runs fine. Replaced fuel transfer pump, checked fuel lines, replac… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,563 satisfied customers
Hello, I have been reading your answers, and I am happy with
Hello, I have been reading your answers, and I am happy with your correspondence with customers. I have a 93 Mack E7 Mechanical engine that developed low oil pressure shortly after replacing a cylinde… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,563 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

13,428 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,293 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

4,563 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

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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

cumminsdr

cumminsdr

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All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,806 satisfied customers

Technician turned service manager on multiple lines of trucks and engines, used in industry.

Chris (aka-Moose)

Chris (aka-Moose)

Technician

462 satisfied customers

24 years of experience diagnosing & repairing

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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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