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 Peterbilt 587 with Cummins isx15) I've changed the dpf
2012 Peterbilt 587 with Cummins isx15) I've changed the dpf filter did the rest with insite and a regen, now the regen required light stays on it was not on before the change. The filter is a Cummins … read more
Joe
Joe
Service Technician
Associate Degree
855 satisfied customers
I have a 2008 Cummins ISM that will not start a stationary
I have a 2008 Cummins ISM that will not start a stationary regen. The DOC temp tops out at 415. Turbo is new and I checked it with a 4xx card and calibrated the actuator. The EGR valve is closed. The … read more
NicholasM1019
NicholasM1019
Diesel Technician
Vocational, Technical or Trade School
8 satisfied customers
I HAVE A 2015 PETE WITH A ISX CUMMINS I REPLACED THE DPF
I HAVE A 2015 PETE WITH A ISX CUMMINS I REPLACED THE DPF FILTER AND NOW IT WILL NOT GO THROUGH A REGEN BRINGING UP A CODE 1664 ENGINE # 79747865… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
4,298 satisfied customers
2014 f650 6.7 cummins. Truck was problem free for years. Now
2014 f650 6.7 cummins. Truck was problem free for years. Now we have reoccurring cel with similar codes related to aft. The most concerning code we have is the 3375 too frequent requests for regen. In… read more
Roy Belding
Roy Belding
7,584 satisfied customers
SPN-5443 16 Aftertreatment 1 Hydrocarbon Dosing System. 2015
SPN-5443 16 Aftertreatment 1 Hydrocarbon Dosing System … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
The stop engine immediately is displayed DPF status gauge is
the stop engine immediately is displayed DPF status gauge is full was empty all day started running down the hwy about 75 mi filter gauge went from normal to full back to normal the got really big sho… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
431 satisfied customers
I have a 2013 Peterbilt with a epa 10 mx13 paccar 455 hp and
I have a 2013 Peterbilt with a epa 10 mx13 paccar 455 hp and 13 speed. Recently had truck serviced, dpf and doc baked and cleaned, boost pressure sensor replaced, nox sensors, 7th injector, def inject… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
431 satisfied customers
DR. Cummins, I have a ISX 79292815 that has the high exhaust
DR. Cummins, I have a ISX 79292815 that has the high exhaust temp light on when driving. I hooked up with insite. no codes and when I was driving I watched and its doing an active regen. my question i… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
4,298 satisfied customers
2009 Peterbilt with isx Cummins on insite trying to do a
2009 Peterbilt with isx Cummins on insite trying to do a stationary regen says clutch pedal is depressed just put in new clutch switch still says depressed try to bypass with jumper wire still says de… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
I own a 2012 prostar wih a maxxforce 13. Also have regen
hi, I own a 2012 prostar wih a maxxforce 13. Also have regen question. Recently found and repaired an exhaust leak at the manifold and a cracked turbo housing. Regens were not completing and were dail… read more
Alex Olsen
Alex Olsen
auto/diesel/industrial
524 satisfied customers
I have a 2008 cummins 6.7L and it will not perform a passive
I have a 2008 cummins 6.7L and it will not perform a passive regen and this year truck doesnt have a parked regen function. What might cause the truck to not perform the regeneration? … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a c 15 which had a clogged dpf filter which we baked
I have a c 15 which had a clogged dpf filter which we baked and we replaced two exhaust temp sensors now the truck shuts down after 15 mins with a dpf ignition failure ard head was filthy might still … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
I have a 2009 international prostar with cummins isx
hello i have a 2009 international prostar with cummins isx engine. And it has an issue where the driver is saying that when he is driving the truck starts to be really slow with no power and the stop … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
4,298 satisfied customers
2009 peterbilt 389 isx 15. I have two codes 1921 and 2742.
2009 peterbilt 389 isx 15. I have two codes 1921 and 2742. Ones after treatment temp sensor and other just means it's in level 3 most severe. I've hooked up in site and ran force regeneration and exha… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I had the code that says erg plugged and the shop said is
hi. i had the code that says erg plugged and the shop said is the erg valve bad and replaced it...3000miles down the road the same plroblem came up the computer says egr plugged..and is asking for a r… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
4,298 satisfied customers
I have a Cummins ISM eng #35253921. I am getting a DTC 2639.
I have a Cummins ISM eng #35253921. I am getting a DTC 2639. Refers to the differential pressure being out of range. This truck has a freshly cleaned DPF, egr, and egr cooler. With the truck running o… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
4,298 satisfied customers
Andy. I'm Andy also.We have a 2012 ProStar with the Mxxforce
Hi Andy. I'm Andy also. We have a 2012 ProStar with the Mxxforce engine. After you bake the DPF filter should you be able to see light through the filter if you shine a flashlight at the other end?… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
Dr Cummins we have a freightliner m2 partybus at the
Dr Cummins we have a freightliner m2 partybus at the shop that came with amber and red engine lights .engine is cummins isl and there are 2 codes presented at the time of inspection 1: egr out of cali… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
4,298 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

4,298 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