Medium and Heavy Trucks

Have truck repair questions? Ask an Expert

Ask an Expert,
Get an Answer ASAP!

Related Medium and Heavy Trucks Questions
Here have2010 isx cummins smoking black smoke excessively
hi jeff here have2010 isx cummins smoking black smoke excessively under acceleration just install ed new cylinder head have double checked wedge and pin timing turbo actuator… read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
Cummins 400 ISl Oil Spray Just picked motorhome up from
Cummins 400 ISl Oil Spray Just picked motorhome up from repair shop after: air dryer filter replaced, turbocharger replaced, new oil, oil filter, air filter and front cover resealed. Drove 25 miles an… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
VOLVO D13 2013 VIN#DN133763 i beleive its vnl670. has fault
VOLVO D13 2013 VIN#DN133763 i beleive its vnl670 . has fault codes as follows,...SPN 4752 FMI 7,,,,SPN 412 FMI 5,,,, SPN 412 FMI 15...PLUS ITS NOT DEFLATING AIR BAGS ALL AIR BAGS ARE EMPTY AND HEIGHT … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
I have a 444 Cummins with 821 cpl , it was smoking smoke
Hello I have a 444 Cummins with 821 cpl , it was smoking white smoke really bad . Cummins shop did a in frame. 462 miles down the road it started knocking real bad. I got it towed back and they told m… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
My name is bob, i just finished changing a turbo on a
hi, my name is ***** ***** just finished changing a turbo on a cummins pac car px8 . had a new actuator installed by a service tec using cummins program it ran great for the first ten ***** *****, the… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
I have a c12 cat serial number 9ns thing I've done I
I have a c12 cat serial number 9ns thing I've done I pulled head off cause had a bad cam followers replaced followers two bad injectors replaced ran overhead replaced fuel transfer pump replaced fuel … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,510 satisfied customers
I have a 98 international 444 or a 7.3 have fuel pressure
I have a 98 international 444 or a 7.3 have fuel pressure replaced fuel air icp cam position sensor lift pump checked for air leaks I nspected turbo pressure tested radiator ran alternate fuel source … read more
Expert
Expert
I have a 2012 Peterbilt with an ISX cummins 600 hp - I was
I have a 2012 Peterbilt with an ISX cummins 600 hp - I was driving with cruise on and all of a sudden I got the nasty check engine msg, so trying to figure this out driving, let off the accelerator an… read more
Geoff
Geoff
BS
8 satisfied customers
I put a turbo, on a cummins 444,old turbo went up, cleaned
I put a turbo, on a cummins 444,old turbo went up, cleaned out air system,installed a new turbo,must have still been a little debris , scored the fins on the new turbo fins, just a little on each fin,… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
I have a 2003 Cummins ISM 500 in my RV. It recently started
I have a 2003 Cummins ISM 500 in my RV. It recently started making a popping noise at idle out of exhaust with white smoke. Was advised it was probably an injector and ran some amsoil fuel conditioner… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
I am working on a 2004 isx cummins that missis at above 1200
I am working on a 2004 isx cummins that missis at above 1200 rpm I just changed the intake air temp sensor and still have a 155 code… read more
Andy3221
Andy3221
truck /coach technician
Vocational, Technical or Trade Scho
222 satisfied customers
We have a customer with a 2010 M2 business class freightliner
We have a customer with a 2010 M2 business class freightliner with engine #73012266 ISC Cummins it keeps getting code 2637/2639/1921 of course when 2637 occurs it stop you from doing a roadside regen … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
I have a cummins isx that has a loss of power and not
I have a cummins isx that has a loss of power and not getting any turbo boost pressure. I have checked all hoses, air cooler, and dont find anything wrong. I am not getting any active codes either. I … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,351 satisfied customers
HI, I have a 1998 International 9700 with a series 60 12.7L.
HI, I have a 1998 International 9700 with a series 60 12.7L. it runs ok at idle and in low RPMs, but when im goin at about 35 mph it seems like it is running out of fuel for a few seconds then it runs… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,510 satisfied customers
peterbuilt 359: I need to know if I can change a ntc444 cummins
I need to know if I can change a ntc444 cummins engine from a low flow radiator to a high flow radiator, and what parts are involved. I took out a 400 big cam engine and want to install a 444. this tr… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
2,803 satisfied customers
I have a 2002 volvo class 8 truck with 630,000 miles we did
I have a 2002 volvo class 8 truck with 630,000 miles we did a normal service and found metal on the drain plug. I hired a mechanic to do a inframe and bought a rebuild kit and 6 piston coolers from Cu… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,243 satisfied customers
cummins kenworth isx: I am working on a cummins isx with a
I am working on a cummins isx with a dpf delete it was ran without coolant and a valve went thru the turbo has new head turbo and air to air when i start it it idles to 900! and will only build 20 ibs… read more
Jim
Jim
Diesel tech.
85 satisfied customers
We have a detroit diesel 60 series rebuild that ran great for
We have a detroit diesel 60 series rebuild that ran great for 1500 miles and then the turbo sounded like something went through it. The truck started running bad and started blowing black smoke. We re… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
9,510 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

2,803 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

9,510 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

2,892 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,243 satisfied customers

ASE Med/HD Truck Technician, NATEF Diesel Engines and Electrical/Electronics Technician, EPA 608/609 HVAC Certified, Steering/Suspension and ABS/Brakes Technician

cumminsdr

cumminsdr

Mechanic

1,351 satisfied customers

All types of Cummins applications

Curtis B.

Curtis B.

Technician

991 satisfied customers

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

dieseldan55

dieseldan55

Contractor

74 satisfied customers

Road Service mechanic for Volvo Construction.

< 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