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
I have a problem with a allison transmission jd4560p. 2003
Second Opinion] I have a problem with a allison transmission jd4560p. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
I have a problem with a allison transmission jd4560p. 2003
I have a problem with a allison transmission jd4560p. … read more
Ramon Capellan
Ramon Capellan
owner / operator
Auto Mechanics
13 satisfied customers
I have 2007 mack Mr model Bad lean on passenger side in
I have 2007 mack Mr model Bad lean on passenger side in front Springs seem same height truck loaded Chassis seems same height on both sides 2-3 inch difference front bumper What should I be measuring … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
6,305 satisfied customers
2019 Kenworth T800 - VIN# 1XKDD4OX4KJ997371. No crank no
ign switch ok - put power to mag switch mounted on the starter with the key on the truck will start. - put the key in the start position, and you can feel the starter interrupt and ign bus relay click. Changed them out just in case, and no difference. Check all battery cables and load tested batteries. AUTO TRANNY - Also, no headlights and circuit fault, showing on the dash cluster. When the key is turned to start amp gauge goes to 150, and the red light in the gauge comes on. only a few gauges sweep when key turned on… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
I av e a 2006 mack cv713 truck died, wont start. Truck
hi i av e a 2006 mack cv713 truck died, wont start … read more
TomcM28
TomcM28
Owner
Associates
13 satisfied customers
No brake lights on 1992 mack ch 600. Where is brake switch
No brake lights on 1992 mack ch 600. Where is brake switch located? … read more
TomcM28
TomcM28
Owner
Associates
13 satisfied customers
Have a 2003 Mack Mr trash truck Data code 1587/ 1708 vecu
Have a 2003 Mack Mr trash truck Data code 1587/ 1708 vecu comes up DTC Finally found print out on pins location and identifier. Found those data link wires going into vecu as well as battery source .s… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
I have a 2001 mack Mr truck trash truck Truck knocked off
I have a 2001 mack Mr truck trash truck Truck knocked off all of a sudden today No key switch function. Only lasted 2 sec. Hear click click with no warning light able to come up Scanner stated no comm… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
6,305 satisfied customers
I have 2003 mack Mr trash truck Problem with truck surging
I have 2003 mack Mr trash truck Problem with truck surging and loosing power,stumbling going up hills under strain. Tried a lot- replaced no.3 rip and no.3 nozzle injector came up on scanner.installed… read more
JimmyM827
JimmyM827
Bobcat specialist
Automotive technologies
70 satisfied customers
I have a 2007 mack MR trash truck E 7 My question is some
I have a 2007 mack MR trash truck E 7 My question is some one wired the rev up switch toggle directly to ecm or VECU. The rev up toggle should shoot electricity to sensor that is iniated by handle On … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
6,305 satisfied customers
I'm having a few problems with my international truck. The
I'm having a few problems with my international truck. The starter won't crank and there's possibly air in the fuel line because when it did crank there was no fuel getting to the ejectors … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
The ignition is not generating power. Make is Mack, model
I checked my batteries and alternator and it seems fine. I guess it's a wiring issue… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
6,305 satisfied customers
I have a 2000 4700 with a 7.3 and have a no start or crank
I have a 2000 4700 with a 7.3 and have a no start or crank condition. have checked all the relays and ignition switch. Was looking for the wiring harness at the ecm so I can check to see if it is powe… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
I have a mack ch model 1998 and the heating motor, gauges,
I have a mack ch model 1998 and the heating motor, gauges, and dash lights don't work … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
I have 2001 Mr Mack trash truck Low power and ticking like
I have 2001 Mr Mack trash truck Low power and ticking like valve sound especially pulling a hill. Replace ecu because Injectors only getting one volt to all six injectors Still have same problem after… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
6,305 satisfied customers
I have an 04 Freightliner columbia motorhome. Is there anywhere
I have an 04 Freightliner columbia motorhome. Is there anywhere else the LVD could be?I want to to jump the LVD but can't find it, it's not under the cupholder or behind either driver seats in wall.It… read more
Clayton
Clayton
Technician
Vocational, Technical or Trade Scho
627 satisfied customers
i have a 2000 r model mack dump truck. there appears to be
i have a 2000 r model mack dump truck. there appears to be a problem with the main power supply. nothing works, no lights, horn, starter etc. i can turn the starter by jumping it at the solenoid, but … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
mack clr: i have a 1994 mack etech 7 mack it has been cutting
i have a 1994 mack etech 7 mack it has been cutting out on the hyway to get it going i have to turn the key on and off i parked it now it wont start it turns over but there seem to be no power going t… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 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

6,062 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,353 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

5,115 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,756 satisfied customers

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

Curtis B.

Curtis B.

Technician

1,947 satisfied customers

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

cumminsdr

cumminsdr

Mechanic

1,886 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

641 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