Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Connect one-on-one with {0} who will answer your question

Related Medium and Heavy Trucks Questions
2014 Mack GU713 MP7 code U010C FMI00 no comminication with
2014 Mack GU713 MP7 code U010C FMI00 no comminication with turbocharger module. … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
442 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
4,737 satisfied customers
2019. Mack gr64ft. Code. Mid 144 psid247 fmi14 count 1. Its
2019. Mack gr64ft. Code. Mid 144 psid247 fmi14 count 1 … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
442 satisfied customers
I have a 2004 international 4300 dt466 that we just put
I have a 2004 international 4300 dt466 that we just put injectors in that is running rough and throwing a code sid5 fmi5 cylinder high side to low side open. … read more
Scott Anthony
Scott Anthony
Master Technician
HS Diploma
2 satisfied customers
2007 international 4300 dt466 truck runs slowly looses power
2007 international 4300 dt466 truck runs slowly looses power cranks back up change fuel pump primer pump pull up codes sid4 fmi5 pid164 fmi10 pid102 fmi4… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
442 satisfied customers
On a mack mp7 how much air goes to the fuel air purge valve.
on a mack mp7 how much air goes to the fuel air purge valve … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
442 satisfied customers
I have a 2008 Mack MP7 engine. I have a problem with the
I have a 2008 Mack MP7 engine. I have a problem with the compression brake solenoid. Scan shows low voltage when commanded by ECM to go high. Looking for wiring circuit info or possible causes.… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
442 satisfied customers
Codes for multiple miss fires, multiple cylinders. no other
codes for multiple miss fires, multiple cylinders. no other codes. engine shut down light coming on. Cummins ISL G MRU Mack … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
I have an issue where this won't start after its gets warmed
I have an issue where this won't start after its gets warmed up. After it cools down, will start. Not overheating. Vin # is : 1HTMMAAM37H33463307 international wit a Max engine… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
210 satisfied customers
I have a 2008 MP7 that drains front fuel filter dry at idle,
I have a 2008 MP7 that drains front fuel filter dry at idle, runs fine going down the road. Any ideas? … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 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
Looking for info on setting valves and injectors on mp7 mack
looking for info on setting valves and injectors on mp7 mack 2009 model … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I'm working on a 2009 Mack MP7 engine and I need Valve
Hi. I'm working on a 2009 Mack MP7 engine and I need Valve adjustment specs. Can someone help me out?… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
I have a 2007 mack granite with a mp7 motor, abs light on no
i have a 2007 mack granite with a mp7 motor, abs light on no start … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
I really need help on this one. I have a 2005 International
I really need help on this one. I have a 2005 International 4900 w/ a 466. 415,000 miles on truck. I installed a new longblock. during the test drive after repair, one of the air charge pipes popped o… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 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
4,023 satisfied customers
1997 t 800 kenworth want turn over 1600 rpm. trowing codes
1997 t 800 kenworth want turn over 1600 rpm. trowing codes 332 sid4 fmi5 234 pid190 fmi0 311 sid1 fmi6 351 sid254 fmi2 321 sid4 fmi6 sid5 fmi6 325 sid6 fmi5 315 sid2 fmi6 314 sid6 fmi6 324 sid fmi5 wa… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
I have a 2008 detroit 60 series freightliner columbia has
I have a 2008 detroit 60 series freightliner columbia has code 3471 sid333 fmi5 hc doser circuit fail open that is the only code goes active then inactive. installed a new dpf element and gaskets inst… read more
semi truck tech
semi truck tech
LEAD DIESEL MECHANIC
Associate Degree
2 satisfied customers
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.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Daniel Wilson

Daniel Wilson

4,737 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,234 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

4,023 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,740 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

cumminsdr

cumminsdr

Mechanic

1,700 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,571 satisfied customers

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

Chris (aka-Moose)

Chris (aka-Moose)

Technician

353 satisfied customers

24 years of experience diagnosing & repairing

< Previous | Next >

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.

Show MoreShow Less

Ask Your Question

x