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 in a pickle... I have 2 trucks needing some good expert
Hello I'm in a pickle... I have 2 trucks needing some good expert advice on. … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
5,115 satisfied customers
2013 freightliner cascadia. DD15 engine. losing power
2013 freightliner cascadia. DD15 engine. losing power during… ★★★★★ 2013 freightliner cascadia. DD15 engine. losing power during acceleration. fan comes on. regains power and repeats..... Mechanic's A… read more
Expert
Expert
10,510 satisfied customers
2013 NPR 5.2L WE JUST REPLACED TURBO AND HAD DPF AND DOC
2013 NPR 5.2L WE JUST REPLACED TURBO AND HAD DPF AND DOC CLEANED NOW A WEEK LATER IT IS SMOKING AND USING 6 GALLONS OF DEF IN ONE DAY(LESS THAN 100 MILES) NO LEAKS … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
We have a c15 and it is smoking and missing a lot when cold
Hi, We have a c15 and it is smoking and missing a lot when cold but the exhaust temp goes up to 1300-1500 in about 5 miles loaded, turbo pressure goes to 45-55 what could be wrong? … read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
62 satisfied customers
I have a 2006 Peterbilt 379 with a MXS Acert 550hp 1850
I have a 2006 Peterbilt 379 with a MXS Acert 550hp 1850 Torque file. Has 160,000 on an overhaul and since the overhaul seems to me that my pyrometer is running hotter than it should. Since the overhau… read more
Nich1019
Nich1019
Diesel Technician
Vocational, Technical or Trade School
62 satisfied customers
I have a western star truck with 3406b cat with a turbo
i have a western star truck with 3406b cat with a turbo sensor fault and cant seem to locate it … read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
214 satisfied customers
It blow black smoke an it burp not all the. Western star
It blow black smoke an it burp not all the JA: What's the make/model/year of your truck? Engine type? Customer: western star 2004 DD15 Detroit JA: Are you fixing your truck yourself? What have you tri… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
I have 2007 peterbuilt model 379 with cat c15 twin turbo
I have 2007 peterbuilt model 379 with cat c15 twin turbo nxs, exhaust goes high up to 1200 … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
Getting that 4364 nox conv eff 18 code and been in the
getting that 4364 nox conv eff 18 code and been in the repair shop 6 times now for the same. its always something different they say … read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
591 satisfied customers
98 western star dumptruck with a 3406b not getting boost
98 western star dumptruck with a 3406b not getting boost paat 18psi everything is good except low power … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
I have an 06 western star with a 14 litre Detroit...low
i have an 06 western star with a 14 litre Detroit...low power on any level..ive changed the cac,fresh service,replaced delta p sensor and the turbo is a year old..its been hooked up at Detroit and all… read more
Expert
Expert
10,510 satisfied customers
I own a 2005 Western Star log truck with a CAT 550 twin
I own a 2005 Western Star log truck with a CAT 550 twin turbo motor, my truck will just shut off as I'm going down the road, seems to be getting worse, now it takes longer to restart and it is happeni… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
6,062 satisfied customers
What is normal boost for a SDP engine? I've spoken to quite
What is normal boost for a SDP engine?I've spoken to quite a few self proclaimed "cat guys" and cannot get the same answer twice.I am boosting 38-42 max. Usually right at the 38psi mark.I've had a few… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
Cat Man, 6NZ47912 set at 550/1850 what boost psi should it
Cat Man, 6NZ47912 set at 550/1850 what boost psi should it be running under load? what is the max safe boost psi for this engine at this setting?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
Ok have had a def delete done on 2013 dd15 560 hp lost all
Ok have had a def delete done on 2013 dd15 560 hp lost all hp I previously had .I use a steinbaur power box and it works perfect.Prior to the delete with the steinbaur this engine ran perfect now I lo… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
4,370 satisfied customers
This Question is for BuddyWould you please tell me the main
This Question is for Buddy Would you please tell me the main difference between DD 13 and DD 15 engines? Trying to buy DD13 engine and would you also tell me if this engine is reliable and doesn't tak… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
4,370 satisfied customers
Have a 2007 western star/C-15 accert 550hp.Did a inframe in
Have a 2007 western star/C-15 accert 550hp.Did a inframe in july 2013,did not replace head.In december started blowing antifreeze out the rad cap,had a lot of preaure behind it.Back to shop,new head a… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 satisfied customers
I have C-15 550 TWIN TURBO CAT, WITH 470,000 MILES ON IT.last
I have C-15 550 TWIN TURBO CAT, WITH 470,000 MILES ON IT.last year my oil was mixing in my radiator. i had it in the shop and the oil cooler was replaced, radiator flushed etc. one year later the prob… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,353 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

6,062 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

5,353 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

5,115 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

4,370 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, Network Engineer specializing in CAN faults, Aftertertreatment, and vehicle communications

Curtis B.

Curtis B.

Technician

1,947 satisfied customers

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

cumminsdr

cumminsdr

Mechanic

1,886 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

641 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