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'm not using any def fluid. I topped off the def tank and
I'm not using any def fluid. I topped off the def tank and drove about 350 miles. The dash said regeneration required, so I did a parked regen. After the regen was completed I started driving and noti… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
4,258 satisfied customers
I have 2012 freightliner cascadia with Cummins isx dtc 1713
I have 2012 freightliner cascadia with Cummins isx dtc 1713 spn 3363 fmi 16 … read more
Expert
Expert
7,458 satisfied customers
I have a driver on the road that is loosing speed since this
I have a driver on the road that is loosing speed since this code popped up. Cummings 587 engine and does have Knox sensor error but have this just delivered at home. SPN-1569 31 … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Def Heater Relay voltage below normal trk in derate. 2014
Def Heater Relay voltage below normal trk in derate … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
Can't remember the code number. But it was def heater line
Can't remember the code number. But it was def heater line 4. … read more
AMANDEEP MAHERU
AMANDEEP MAHERU
1 satisfied customers
Def lights are on. System is full of DEF. code still says
Def lights are on. System is full of DEF. code still says it's the doser. Doser has been replaced … read more
Eddy
Eddy
HD Truck Tech
GED
2 satisfied customers
2013 pete ISX Cummins fault code aftertreatment SCR Operat
2013 pete ISX Cummins fault code aftertreatment SCR Operat inducement Severity … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
398 satisfied customers
I have SPN 1569, 5246, 5746, and 1387 and stop engine
I have SPN 1569, 5246, 5746, and 1387 and stop engine immediately … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
398 satisfied customers
Have a fault code 3363 and is derated. 2014 peterbilt 386
Haven't tried anything so far other then trying a park regeneration. It did not … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
398 satisfied customers
2014 kw with isx in derate with 3567 code. 2014 kenworth
yes i live in remote area ,i changed the def pump this morning it changed nothing… read more
Expert
Expert
7,458 satisfied customers
What is the maximum weight we should be pulling using a 2012
What is the maximum weight we should be pulling using a 2012 Peterbilt 587 with a Cummins ISX 15L, 10 speed transmission and 2.67 gearing on the rear ends?… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 satisfied customers
Spn1569/5246/4340/6802/16. Peterbilt 2014 cummings. Nada.
Spn1569/5246/4340/6802/16 JA: What's the make/model/year of your truck? Engine type? Customer: Peterbilt 2014 cummings JA: Are you fixing your truck yourself? What have you tried so far? Customer: Nad… read more
Expert
Expert
7,458 satisfied customers
I have a full tank of DEF. The engine is derated and I have
I have a full tank of DEF. The engine is derated and I have the following codes. 4340, 5246, 1569, 3740, and 6802 it's a 2016 Peterbilt 389 Cummins isx … read more
Eddy
Eddy
HD Truck Tech
GED
2 satisfied customers
Got 3 codes SPN862,SPN3697.SPN3698, peterbilt, 389,2013, ISX
got 3 codes SPN862,SPN3697.SPN3698 JA: What's the make/model/year of your truck? Engine type? Customer: peterbilt, 389,2013, ISX 600 JA: Are you fixing your truck yourself? What have you tried so far?… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
4,258 satisfied customers
I have a 2012 peterbilt with isx Cummings that has a
I have a 2012 peterbilt with isx Cummings that has a catylast dosing unit code and a derated status checked it over now I need to be able to reset computer clear codes. … read more
timdieseltech
timdieseltech
lead diesel tech, shop owner
Vocational, Technical or Trade School
195 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
Just had the DPF cleaned, changed some sensors due to a
just had the DPF cleaned, changed some sensors due to a fault number 3582, got back on the road and the check engine light came back with the same fault, I'm driving back home loaded and hoping for th… read more
Expert
Expert
7,458 satisfied customers
peterbilt 587: I have a 2012 peterbilt with a 587 isx. We keep
I have a 2012 peterbilt with a 587 isx. We keep ending.up in shop because eng warning keeos coming on with a connect sev tool fault. When this happens fuel milage goes down hill. They clean the dpf fi… read more
Steve
Steve
Self Employed
High School or GED
30 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

4,258 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