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
High oil temp Mack mp8. New oil no codes. 2014 chu. Water
High oil temp Mack mp8 JA: When was your last oil change? Have any error codes popped up? Customer: New oil no codes JA: What's the make, model, and year of your car? Customer: 2014 chu JA: Is there a… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,085 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
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
Shop Foreman/Triage Tech
Associates
5,085 satisfied customers
I have a 2011 Mack mp8 I change fuel pump filter housing and
Hi I have a 2011 Mack mp8 I change fuel pump filter housing and when I picking up speed it's slow down and ask to check the filter? … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,085 satisfied customers
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
Associates
5,085 satisfied customers
I had a fan belt break on my 2008 Mack CHU613 Pinnacle and
I had a fan belt break on my 2008 Mack CHU613 Pinnacle and the connected for the fan side control clutch ripped off. I need to know how to rewire without buying the entire assembly. … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,085 satisfied customers
I have a 2017 Mack/CHU. With an engine light on. The codes
I have a 2017 Mack/CHU. With an engine light on. The codes that come up are P24D1, P24AF, P249F and P24AO. The first I'm pretty sure is for a PM sensor. … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,085 satisfied customers
I have a Mack MP8 445 with lose of power issue. Changed fuel
I have a Mack MP8 445 with lose of power issue. Changed fuel filters still having the issue … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,085 satisfied customers
2014 mack pinnacle with a mp8. What is the best way to
2014 mack pinnacle with a mp8 . What is the best way to remove the air compressor … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,085 satisfied customers
It has started leaking fuel back out of the head overnight.
It has started leaking fuel back out of the head overnight. It is losing its prime.I was going to replace the check valve on the return line but do not know where it is located. … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,085 satisfied customers
I have a Mack 2011 with mp8 it shakes badly when it reach
I have a Mack 2011 with mp8 it shakes badly when it reach above 50 I have change the fuel filter housing and still the same I have to gear down from 10 to 9 speed because the vibration is really bad what can be the possible problwm … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,085 satisfied customers
2014 Mack CXU 613 is not getting fuel after new filter
2014 Mack CXU 613 is not getting fuel after new filter housing and fuel pump. Is there a complete fuel system diagram?… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,085 satisfied customers
Where is the fuel transfer pump located on an MP8 425E Mack
Where is the fuel transfer pump located on an MP8 425E Mack engine ? … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,085 satisfied customers
I have a Mack chu 2008 mp8 motor... engine will not go 1500
I have a Mack chu 2008 mp8 motor... engine will not go 1500 rpm's … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,085 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
5,454 satisfied customers
Having problems with the DEF system on a Mack MP8 2013 year
Having problems with the DEF system on a Mack MP8 2013 year Model How do I deleat the system … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,824 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
5,454 satisfied customers
I have a 2010 Mack chu truck mp8 engine that quit going down
I have a 2010 Mack chu truck mp8 engine that quit going down road backfired and shut down it won't crank over checked every fuse powe to dash has codes of mid140ppid278fmi9 def gage reads empty but fu… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
5,454 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

5,454 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

2,747 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

1,824 satisfied customers

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

< 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