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
Shortly after refueling and filling DEF tank on 2014 M2
Hello, shortly after refueling and filling DEF tank on 2014 M2 Freightliner the DEF light and engine light came on. Driver stopped and checked all fluids, looking for leaks etc and all was good. Resta… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
2016 m2 with a code spn 1569 fmi 31. Freightliner m2 2016.
I try do do most work in house but, kind of green on the def side if that is the problem… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
I have a 2012 Freightliner M2 Business Class-based RV with
I have a 2012 Freightliner M2 Business Class-based RV with CEL and son 4334. Can I continue to drive to return home (about 800 miles) before I take in for repairs? … read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
195 satisfied customers
Engine number 73896317. Fault codes after treatment SCR
Anything else you want the truck mechanic to know before I connect you?Customer: no… read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
195 satisfied customers
2013 Freight liner M2 106. Cide SPN 5246-FMI 0, Cummins ISC
I am. I have replaced the NOx Sensor, and the Temp sensor right before the NOx sensor … read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
195 satisfied customers
School bus 2016 Cummins isb 112,000km Came in with codes
School bus 2016 Cummins isb 112,000km Came in with codes 2976 , 3545, 3559, 3712, 3714, 4251 and a power loss issue stemming from Aftertreatment issues. A tech from this website and I determined it wa… read more
Steven
Steven
Triage Tech/Shop Foreman
Associates
195 satisfied customers
I have a def problem. started with shutting down the def
i have a def problem. started with shutting down the def system due to a heater code..replaced the sending unit, doser nozzle and pump module. tanks are full but still reads empty and sets derate code… read more
roybelding
roybelding
Shop Foreman Freightliner trucks
Associate Degree
10,179 satisfied customers
2011 Freightliner M2, Yellow and Red engine lights on,
2011 Freightliner M2, Yellow and Red engine lights on, derated speed. 4 codes 3226 fail 4, 3226 fail 20, 1569 fail 31, 5246 fail 0. … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
Check engine light on Exhaust(SCR/DEF) just had DEF system
Check engine light on Exhaust(SCR/DEF) just had DEF system serviced about 6 months ago and replaced a DEF heater hose in Feb … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Have a 2012 Int 4300 with cummins have 4 codes i need help
Have a 2012 Int 4300 with cummins have 4 codes i need help with … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
GOT A ISC CUMMINS, CM2250, IN A 2011 FRT M2, AFTER ABOUT 60
GOT A ISC CUMMINS, CM2250, IN A 2011 FRT M2, AFTER ABOUT 60 MILES OF DRIVING CODE 3582 WILL POP UP, THEN IT WILL DERATE AFTER A WHILE, IVE INSTALLED A NEW DOSER PUMP, DOSER VALVE AND A NEW NOX SENSOR … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
203 satisfied customers
I have a 2016 m2 freightliner with a 6.7 cummins that needs
i have a 2016 m2 freightliner with a 6.7 cummins that needs a block due to vehicle collision. ESN is 58589558. this is a DEF engine. i have located an engine core ESN is 73060509. this is not a DEF en… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 satisfied customers
I have a 2016 Freightliner M2 with a Cummins I am going to
I have a 2016 Freightliner M2 with a Cummins I am going to derate with a code 3425 open circuit in DEF line heater 3. I am trying to figure out which line is #3. … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 satisfied customers
I've got a 2016 Western Star here with a Cummins ISL9 ESN
I've got a 2016 Western Star here with a Cummins ISL9 ESN 73903006 that came in derated. It had fault codes 1682,3714, and 3712. It has been really cold here and it is warmed up today. One of the code… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 satisfied customers
I had be a2012 freightliner m2-112 vin BW1522. I had spn3361
I had be a2012 freightliner m2-112 vin BW1522. I had spn3361 fmi 7 inactive. I cleared code. Now I have spn5246 fmi5 active. No other codes. What do I have to do to clear this code? Is this something … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
I have 2012 Freightliner Cascadia with ISX Cummins showing
I have 2012 Freightliner Cascadia with ISX Cummins showing the active code 3582 an inactive 3753 I have Cummins Insite with all the dealer levels on it what do I need to do to resolve this problem… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 satisfied customers
Vin 3alacxdtxedfn0837 freightliner m2 spn 1569 31 spn5246 0
vin 3alacxdtxedfn0837 freightliner m2 spn 1569 31 spn5246 0 4fmi spn5746 4fmi spn5491 4fmi 3 engine lamps on one red i need diagnostic information it seem like the emission filter blocked and scr… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Ive got a 2014 kenworth dump truck. All I have is a paper
Ive got a 2014 kenworth dump truck. All I have is a paper copy of the code its throwing at the moment so I don't have the vin or esn. parts that have been recently replaced are the dpf filter, def dos… read more
Derek Neustaeter
Derek Neustaeter
Heavy Duty Equipment Mechanic
1 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

3,632 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,965 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

3,400 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,672 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

1,458 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

149 satisfied customers

16 years of experience

dieseldan55

dieseldan55

Contractor

77 satisfied customers

Road Service mechanic for Volvo Construction.

< 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