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
2018 IH 4300 1HTMMMROJH714707, Low DEF lamp is on, gauge
2018 IH 4300 1HTMMMROJH714707, Low DEF lamp is on, gauge shows half a tank even though it's full and the power is intermittently reduced. Driver says DEF level in the tank never goes down. DEF filter … read more
Mike
Mike
Triage Tech/Shop Foreman
Associates
215 satisfied customers
How do you reset a 2018 freight liner Caucasia. Check engine
Check engine light is on because def needs to me rgen … read more
Roy
Roy
shop foreman
Associate Degree
5,462 satisfied customers
The def gauge says truck has no def, and the check engine
The def gauge says truck has no def, and the check engine light is on truck says shut down immediately, and the def tank is full … read more
Mike
Mike
Triage Tech/Shop Foreman
Associates
215 satisfied customers
I have a 2016 prostar with a Cummins ISX. It has multiple
I have a 2016 prostar with a Cummins ISX. It has multiple faults including 3999 fmi 5. The unit is in first stage derate for abnormal update rate from DEF quality and level sensor as well as both NOX … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
205 satisfied customers
I have a 2012 freightliner Cascadia that the code spn005246
i have a 2012 freightliner Cascadia that the code spn005246 15 came on about 30 min into my drive time. the yellow light was flashing by the def gauge plus check engine light. What does this mean? … read more
Roy
Roy
shop foreman
Associate Degree
5,462 satisfied customers
I have 2011 freight liner with dd15 I have a stay active
I have 2011 freight liner with dd15 I have a stay active every time I clear it comes right bk and don't have a chance to regen … read more
Roy
Roy
shop foreman
Associate Degree
5,462 satisfied customers
I accidently put some diesel in def tank on a freight liner
i accidently put some diesel in def tank on a freight liner (Jayco Seneca motorhome) with a 340 hp cummins diesel approx 4 months ago. Had the check engine light come on our last trip. I took the unit… read more
Roy
Roy
shop foreman
Associate Degree
5,462 satisfied customers
I accidently put some diesel in def tank on a freight liner
i accidently put some diesel in def tank on a freight liner (Jayco Seneca motorhome) with a 340 hp cummins diesel approx 4 months ago. Had the check engine light come on our last trip. I took the unit… read more
Mike
Mike
Triage Tech/Shop Foreman
Associates
215 satisfied customers
Wound up installing new scr metering unit and had technician
Hello, Wound up installing new scr metering unit and had technician come clear codes or eec61 and regen the truck twice and all codes and lights went off, next day drove truck 5 hours and the 2 yellow… read more
Roy
Roy
shop foreman
Associate Degree
5,462 satisfied customers
I have a ter 4 Cummings the def gauge shows empty replaced
I have a ter 4 Cummings the def gauge shows empty replaced sending unit/ pump still doesn't work … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,552 satisfied customers
I have a 2011 Freightliner Cascadia that I brought into the
I have a 2011 Freightliner Cascadia that I brought into the shop for a regen. I went home that evening and returned the next morning and the truck would not start. I connected the laptop and found tha… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
9,979 satisfied customers
My 2013 cascading was running great just a few min ago the
My 2013 cascading was running great just a few min ago the yellow warning light for the DEF started blinking and my engine light came on I have pleanty of DEF I HAVE A Detroit What could be the proble… read more
Aaron Evans
Aaron Evans
MOBILE FLEET MANAGER
44 satisfied customers
My 2003 freight liner fdl 120 keeps shutting down brings up
my 2003 freight liner fdl 120 keeps shutting down brings up low oil pressure code replaced oil pressure sensor still having tha same problems help please… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,552 satisfied customers
My 2006 Mercedes freight liner m2 business class won't fire
My 2006 Mercedes freight liner m2 business class won't fire after a normal shut down. Cranks fine won't fire. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
9,979 satisfied customers
My check engine light comes on and the engine protect light.
My check engine light comes on and the engine protect light. And the engine loses power at about 6th gear… read more
Roy
Roy
shop foreman
Associate Degree
5,462 satisfied customers
. Have a 2008 freightliner sprinter with a diesel and it
Hi. Have a 2008 freightliner sprinter with a diesel and it throws code p2453. There is nowhere to put Def fluid. I thought it was a diesel particulate filter code. What does this code mean?… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,735 satisfied customers
Hi jim have series 60 in a 95 freight liner at idle after a
Hi jim have series 60 in a 95 freight liner at idle after a few minute the check engine light starts to flash then shuts the engine down… read more
Roy
Roy
shop foreman
Associate Degree
5,462 satisfied customers
Have a 2012 Freight liner Cornado with a DD15 engine. Had all
Have a 2012 Freight liner Cornado with a DD15 engine. Had all codes cleared but in couple hours both yellow engine lights come on truck derates in power and I get this code 061-SPN004334. DEF tank is … read more
Roy
Roy
shop foreman
Associate Degree
5,462 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

9,979 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,114 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

3,693 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,735 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

1,552 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,270 satisfied customers

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

Chris (aka-Moose)

Chris (aka-Moose)

Technician

262 satisfied customers

16 years of experience

< 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