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
2012 INTERNATIONAL PROSTAR MAXXFORCE 13. BEEN SITTING
2012 INTERNATIONAL PROSTAR MAXXFORCE 13. BEEN SITTING AWHILE. SPN 520462 AND 520461 BOTH FMI 9. 6 PACK DATA LINK 1 AND DATA LINK 2 WHERE IS THIS SIX PACK DATA LINK. SPN 724 FMI 20, I HAVE OXYGEN SENSO… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,013 satisfied customers
SID 216 fault Detroit 60 Meritor trans. Truck is 2005 with
my speedometer stopped working and it showed this code Freightliner colombia … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,013 satisfied customers
My truck just brake down now and I need assistance from
My truck just brake down now and I need assistance from technician please … read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,666 satisfied customers
Brake codes SPN 520702, SID-231 and SPN 639. Within the last
within the last month they open and closed but the SPN 520702 has been constant … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,013 satisfied customers
I HAVE MULTIPLE CODES. NO CHECK ENGINE LIGHTS. BUT STILL
HEY STEVE I HAVE MULTIPLE CODES. NO CHECK ENGINE LIGHTS. BUT STILL ACTIVE CODES. … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,046 satisfied customers
My truck is shutting off while running I've had some egr
My truck is shutting off while running I've had some egr codes for a long time and havent done a regen in quite a while. I've washed and just put back the same filter for quite some time now. The late… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,013 satisfied customers
How are you I have a 2012 Mack CXU day cab with a Mac mp8
Good morning how are you I have a 2012 Mack CXU day cab with a Mac mp8 engine and I'm getting a trouble code SID 231 j 1939 data erratic I've attached a picture of the VIN number end of the trouble co… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,666 satisfied customers
SID 27 FMI 9 Mp8. Mack 2011. Nothing Only check in compuert.
Hello JA: Hello. How can I help? Customer: SID 27 FMI 9 Mp8 JA: What's the make/model/year of your truck? Engine type? Customer: Mack 2011 JA: Are you fixing your truck yourself? What have you tried s… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
5,666 satisfied customers
Getting a low voltage code. Truck won't pull. Schecked for
Getting a low voltage code. Truck won't pull JA: Sometimes things that you think will be really complicated end up being easy to fix. The Heavy Truck Mechanic I'm going to connect you with knows all t… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,349 satisfied customers
Jeremy, i got these codes, sid 253 fmi 12, spn 639 fmi 9 and
HI Jeremy, i got these codes , sid 253 fmi 12, spn 639 fmi 9 and sid 231 fmi 9, freightliner century detorit 12.7… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,755 satisfied customers
Need to contact you but can't use my e-mail address as I
Need to contact you but can't use my e-mail address as I used it here and it will not let me in using it HELP… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,013 satisfied customers
Sid 231-fmi-8. mack, 1998 mack mack mtr, im a repair shop,
im a repair shop, we have checked all connections and batteries, also pulled bulk head connectors apart and cleaned,, ecm cam locks are clean no corrosion … read more
Expert
Expert
10,483 satisfied customers
I have a sid 231 FMI (8) Engine AI 350, Mack. Granite 2003,
I have a sid 231 FMI (8) JA: What's the make/model/year of your truck? Engine type? Customer: Engine AI 350 JA: Are you fixing your truck yourself? What have you tried so far? Customer: Mack. Granite … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,013 satisfied customers
I am working on a 2000 Mack rd688s with an e7 350. I am getting
I am working on a 2000 Mack rd688s with an e7 350. I am getting a Sid 231 fmi 8 and a sid 250 fmi 8. I have found that the tps is bad. Will this give me these codes? It runs but won't rev up.… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,755 satisfied customers
Got a Mack truck with code SID 231 FMI 8, It starts and runs
Got a Mack truck with code SID 231 FMI 8, It starts and runs at a high Idle but will not accelerate.… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,755 satisfied customers
International 4700: 1998 international 4700. Erratic idle,
1998 international 4700. Erratic idle, then dies. Codes are. Sid 21 FMI 8 and FMI 2 Sid 247 FMI 2 Pid 110 FMI 14 Pid 111 FMI 2 Sid 254 FMI 8 Is this a crank position sensor problem?… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,013 satisfied customers
Volvo truck tractor: semi truck 1998 with Volvo engine have
semi truck 1998 with Volvo engine have fault codes cad controller,speed controller inactive mid144 PID 84 FMI 5 count 6 --------- cad controller bad device active MID 144 SID 231 FMI 12 count 255 ----… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,755 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

6,013 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,349 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

5,046 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,755 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

1,940 satisfied customers

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

cumminsdr

cumminsdr

Mechanic

1,883 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

626 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