Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Ask an Expert,
Get an Answer ASAP!

Have a 2012 Mack with a mp7 had a code for fan clutch had it…

Customer Question
Have a 2012 Mack...

Have a 2012 Mack with a mp7 had a code for fan clutch had it in a shop they verified I replaced the fan clutch no codes now but still have no manifold pressure are boost pressure

Mechanic's Assistant: What's the make/model/year of your truck? Engine type?

2012 cxu 613 MP7

Mechanic's Assistant: Anything else you want the truck mechanic to know before I connect you?

No just trying to find out what I need to trouble shoot for no pressure

Submitted: 10 months ago.Category: Medium and Heavy Trucks
Show More
Show Less
Ask Your Own Medium and Heavy Trucks Question
Answered in 3 hours by:
9/23/2017
Technician: Daniel Wilson,
 replied 10 months ago
Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 6,885
Experience: Owner at DJ Wilson
Verified

Hi my name is***** post all fault codes you have logged in the ECM...

Ask Your Own Medium and Heavy Trucks Question
Customer reply replied 10 months ago
last fault code was spn 645 fmi5 fan clutch replaced fan clutch no code but truck shows no manifold pressure are very low pressure and will not rev more then around 10000 to 11000
Technician: Daniel Wilson,
 replied 10 months ago

Thanks for the update. If no manifold or boost, check the CAC and intake piping for leaks and if okay check for a faulty turbocharger or turbo actuator. Verify the VNT turbo operation and for excessive carbon/soot buildup. Let me know the results

Ask Your Own Medium and Heavy Trucks Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Daniel Wilson Your Own Question
Daniel Wilson
Daniel Wilson
Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 6,885
6,885 Satisfied Customers
Experience: Owner at DJ Wilson

Daniel Wilson is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

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

6,885 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,530 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,892 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,243 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

Mechanic

1,351 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

991 satisfied customers

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

dieseldan55

dieseldan55

Contractor

74 satisfied customers

Road Service mechanic for Volvo Construction.

< Previous | Next >

Related Medium and Heavy Trucks Questions
Fan clutch solenoid valve is constantly leaking air. At
Fan clutch solenoid valve is constantly leaking air. At first only when the key was the on or run position, but since changing the solenoid valve now it leaks constantly.… read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
11 satisfied customers
I have a 2000 Mack 613 vision and the high pressure switch
I have a 2000 Mack 613 vision and the high pressure switch is causing an open circuit condition as indicated on the diagnostic module. I jumpered the leads going to the switch and the system ran on it… read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
11 satisfied customers
We have a 2009 Mack Granite GU813 with a MP7 engine. The
Hi there We have a 2009 Mack Granite GU813 with a MP7 engine. The truck initially had an egr valve fault code when we went out to it first. The truck has low power and had a DPF delete. The only activ… read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
11 satisfied customers
2007 MP7 runs good in lower ear but looses power in higher
2007 MP7 runs good in lower ear but looses power in higher gear (spped ) no manifold pressure … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,885 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
Location of brake light switch 2012 mack cxu 613 with
location of brake light switch 2012 mack cxu 613 with automated transmission truck will not shift out of neutral when pressing brake pedal and has no brake lights on tractor message across screen says… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
I need some help on a 2015 Mack cxu613 w mp7 engine running
Dan I need some help on a 2015 Mack cxu613 w mp7 engine running rough like fuel filters clogged. Check engine light is on but I don't have equipment to read codes on that truck. The plug I found looke… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,885 satisfied customers
98 mack ch613 with a Mack E7. Truck won't get out of its own
98 mack ch613 with a Mack E7. Truck won't get out of its own way when on the highway. Hooked up to it and its not showing boost pressure. Can't find the boost pressure sensor. the only active code I h… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
2008 Mack GU713 with MP7 engine, Fault codes;P094M128I907FCan
2008 Mack GU713 with MP7 engine, Fault codes; P094 M128 I9 07F Can you tell me what these codes are for… read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
Cant get air system to pressure up..no leaks new governor.
Can't get air system to pressure up..no leaks new governor. .I'm able to hold air pressure back with thumb at air compressor… read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
I have a 2010 mack cxu 613 with codes MID 128 PPID 326 FMI
I have a 2010 mack cxu 613 with codes MID 128 PPID 326 FMI 11 also had another code MID 128 PPID 270 FMI 5 stop engine light is on and dpf regen light is flashing. We already had the DPF cleaned and w… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,885 satisfied customers
222mk, I have the code 1 fault 7then just below 613_14p Compressor
I have the code 1 fault 7 then just below 613_14p Compressor in op wont stay in gauged. New comp. dryer, flush freon, oil, What sensor controls the compressor clutch? Is it all 3 it has two thermostat… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,885 satisfied customers
engine is a MP7 In a mack cxu, idles good, throttle response
engine is a MP7 In a mack cxu, idles good, throttle response is o.k. seems to have flat spot in engine, no engine codes, boost pressure wont go over 6lbs, also engine willl get to 50MPH o.k. but very … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
I would like a list of fault blink codes for a 2001 mack
I would like a list of fault blink codes for a 2001 mack quantum, the code i am getting is 4 blinks then 2 blinks… read more
Al-Moderator
Al-Moderator
High School or GED
2006 International 7600 - the blower motor control only blows
2006 International 7600 - the blower motor control only blows heat/air out the front vents of the dash. When you switch to defrost or floor, it will not change from blowing out the front vents of the … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,885 satisfied customers
Hi. I hope you can help me here i have a 2003 international
Hi. I hope you can help me here i have a 2003 international 4200 vt365 with a check transmission light that comes on after starting engine. i pulled codes and found a 2023 14 150 2, 63914 241 254, 639… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,885 satisfied customers
2007 International 7600....AC functions correctly for 15
2007 International 7600....AC functions correctly for 15 mins. then shutsdown with 613_14a code… read more
tkman55
tkman55
Owner 24 HR Mobile Service TK/Carrier
55 satisfied customers
I have two 2009 Macks with an MP7 motor one the fan clutch
I have two 2009 Mack's with an MP7 motor one the fan clutch wont kick on and the other it wont shut off. The one that wont turn on I replaced temp sensor and clutch. The fan clutch will turn on only w… read more
diesel-tech
diesel-tech
Owner of landrys truck repair llc
130 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.

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