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
Have a 2012 Isuzu npr diesel,using idss has no codes.has
Have a 2012 Isuzu npr diesel,using idss has no codes.has engine derate light on and DEF fluid light on . Just replaced scr and dpf had doc cleaned. Cannot communicate with Abs and a miminori says on i… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
418 satisfied customers
Code 5246 code will not clear no other active codes passes
code 5246 code will not clear no other active codes passes scr tests and regens at 85% '15 dd15 help … read more
Roy Belding
Roy Belding
7,528 satisfied customers
Mitsubishi fuso / 2014 / check light flashing / running in
mitsubishi fuso / 2014 / check light flashing / running in limp mode / ran out of adblue / filled adblue / cant get rid of the codes vioa my scan tool [f-car scan tool] … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
418 satisfied customers
Dpf problems. 2011 Mack mp7. Called for forced regen....soot
called for forced regen....soot index at 88% failed regen took filter off to get baked and reinstall along with inlet nox sensor and regened it to 0% soot level but yellow inhibit switch is still blinking … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
418 satisfied customers
I have a spn 3363 code on in my 2012 peterbilt. I've spent
I have a spn 3363 code on in my 2012 peterbilt. I've spent $5000.00 at peterbilt and it's still on … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
418 satisfied customers
Paccar mx13 p3931 code need to clean def heater valve but
Paccar mx13 p3931 code need to clean def heater valve but where is it located in the def pump or in the coolant loop in the tank? … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
418 satisfied customers
I am working on a 2014 Detroit diesel DD 15 with a one box
I am working on a 2014 Detroit diesel DD 15 with a one box after treatment system. My customer replaced both DPF‘s filters and the high soot level code is still staying active and triggering the stop … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
I have 2011 freightliner cascadia. Detroit diesel D13. I did
I did try have some mechanic work on it problem still exist … read more
Roy Belding
Roy Belding
7,528 satisfied customers
Have a 2011 Isuzu NPR HD its a diesel box truck, it ran out
Have a 2011 Isuzu NPR HD its a diesel box truck, it ran out of DEF fluid and started going 50mph, got to a station and filled up and then even slower 35 miles an hour, is there a reset button or somet… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
418 satisfied customers
Morning! Having a problem that I just can conquer on a
Morning! Having a problem that I just can conquer on a Freightliner Cascadia! VIN: 1FUJGLDR8CSBH1198Active Codes: 3364 2 Improper DEF Quality Final Warning 3364 17 Improper DEF Quality Warning 5397 31… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
Freightliner cascadia - how do I get it out of protective
Freightliner cascadia - how do I get it out of protective mode 5 mph … read more
Roy Belding
Roy Belding
7,528 satisfied customers
I have a 2013 Cascadia that is blinking the low DEF light,
I have a 2013 Cascadia that is blinking the low DEF light, but the gauge reads full & I just filled it as full as possible but light is still blinking & yellow & red check/ stop engine lights are on &… read more
Roy Belding
Roy Belding
7,528 satisfied customers
What is the main difference in benefit between a forced
What is the main difference in benefit between a forced regen and a parked regen?Aftertreatment issues is not allowing a parked regen to finish although it starts. Will a forced regen complete it. I b… read more
Roy Belding
Roy Belding
7,528 satisfied customers
My 2012 Freightliner DD15 started derating without telling
My 2012 Freightliner DD15 started derating without telling me it was derating. The low DEF light keeps blinking even though there is plenty of DEF. I know it wants to do a parked regen although no lig… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 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
1,700 satisfied customers
Issue: How can I clear the DEF Quality being evaluated
Issue: How can I clear the DEF Quality being evaluated engine in derate on the dashboard? Truck: Model CXU613 year 2010 with an MP7 EngineWhat I already did: *The DPF Filters has been cleaned 4 weeks … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I HAVE A 2011 ISUZU NPR IT WAS A P2000/P20C9/P1490, 5.2
I HAVE A 2011 ISUZU NPR IT WAS A P2000/P20C9/P1490 … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
I have a cummins isx in a 2012 peterbilt it has code 3566
i have a cummins isx in a 2012 peterbilt it has code 3566 aftertreatment diesel exhaust fluid dosing valve we replaced doser valve on a road call and code was inactive until my tech forced regen obv t… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 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

4,737 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,234 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

4,023 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,740 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

1,700 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

1,571 satisfied customers

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

Chris (aka-Moose)

Chris (aka-Moose)

Technician

353 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