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
My number one cylinder has no compression truck smokes
My number one cylinder has no compression truck smokes excessively exhaust smells like raw fuel I have an ISX 15 and I'm trying to figure out how to shut the number one injector off that's blowing all… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
4,284 satisfied customers
I have a cm870 when pulling out loaded and on a hard pull it
I have a cm870 when pulling out loaded and on a hard pull it will lose power like turning the key off and back on and occasionally show code for low fuel psi and will sometimes even quit. May go days … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
Isx missing at idle. 2007 9400i int' cummings isx 475.
driver ended up at cumming in columbia mo he has tow more drops today, the truck seems to run down the road fine … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
We have a ISX cummins eng serial 79218581 it is running real
good morning we have a ISX cummins eng serial 79218581 it is running real high rpms smoke blacks gray fuel smoke and want dies when you turn of the key.… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
Isx Cummins 565 idles rough with warm fuel. Refill tanks
Isx Cummins 565 idles rough with warm fuel. Refill tanks with cold fuel it settles down and get power back? … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
2007 Peterbilt 335 Cummins 8.3 ISC. SN 46644819...originally
2007 Peterbilt 335 Cummins 8.3 ISC. SN 46644819...originally brought in bc of loss of power & heavy smoke...replaced injectors (all 6), replaced #2 piston & sleeve, machine shop checked heads but no m… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
I am working whit a isb 6.7 and it has a lot of smock whit
I am working whit a isb 6.7 and it has a lot of smock whit smell of diesel it has no fault codes can anybody help me… read more
Mike Mcmillan
Mike Mcmillan
Shop Foreman/Triage Tech
Associates
4,284 satisfied customers
Excessive exhaust smoke from cylinders 1, 2, &3 when hot
Excessive exhaust smoke from cylinders 1, 2, &3 when hot only … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
2009 KW T660 Cummins isx cm871 engine rough idle and smoke I
2009 KW T660 Cummins isx cm871 engine rough idle and white smoke I did the cylinder cut out test with Insite and injector in cylinder #2 is not working Then I did the cylinder performance test and 123… read more
Roy Belding
Roy Belding
7,581 satisfied customers
We have a 2005 international 4900 series with a Cummins ISX
We have a 2005 international 4900 series with a Cummins ISX engine. The engine smokes extreme and there is pressure in the return fuel system. Injectors 4, 5, and 6 are clearly showing signs of damage… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
05 Int 9900i,cummins ISX, says I have 2 faults, 128:F04
05 Int 9900i,cummins ISX, says I have 2 faults, 128:F04 (pid131-A) and 092:F04 (pid131-A) . Local Int dealer says can't tell me what they are./ … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Working on isx cummins blowing a lot of smoke replaced EGR
Working on isx cummins blowing a lot of white smoke replaced EGR cooler was leaking water and smoke continues 2009 ISX… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a n14 lost power, changed fuel filter and still slugash
I have a n14 lost power, changed fuel filter and still slugash at low rpms my fuel milage went south checked turbo spins free smokes at mid range. Tried to cut out injectors and you could here diff on… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
I have a 2004 Int with 435 cummins isx. It had a turbo go
I have a 2004 Int with 435 cummins isx. It had a turbo go out recently and i replaced it. After this point the truck continued to smoke after I flushed the air to air due to the turbo blowing out on t… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
Hello William, I have a 500hp 06 cummins isx. it only blows
Hello William, I have a 500hp 06 cummins isx. it only blows black smoke when I floor the throttle. No loss of power, but due notice I have lost about .5 mile per gallon fuel. What do you think...? I w… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
my other truck 2009 prostar isx engine i have a fault cods 4283--inactive 3167--inacti
my other truck 2009 prostar isx engine i have a fault cods 4283--inactive 3167--inactive 2374--inactive 2554--inactive 4214--ACTIVE 2637--ACTIVE last week i had a problem whit same truck we change aft… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
Hello, I have a 06 isx and when it idles it will idle fine
Hello, I have a 06 isx and when it idles it will idle fine for a short time then it will start to miss for a short time then back to being fine again, this keeps repeting itself. It seems to do this w… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
We have a cummins n14 in a Freightliner. The original problem
We have a cummins n14 in a Freightliner. The original problem was it was missing and popping through the exhaust. We have ran the over head and set the valves. In the cummins computer there are no cod… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 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