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 have a boat with 3126 Cats just short of 500 hrs. I
I have a boat with 3126 Cats just short of 500 hrs. I recently had a breakdown with Black smoke and Overheating at same time. Shut down an limped back to marina on 1 engine. There is a Cat mechanic wh… read more
Bradey V
Bradey V
Certificate
It 5.9 Cummins when I replace all 6 injectors still smoke
It 5.9 Cummins when I replace all 6 injectors still white smoke coming out from tail pipe and supposedly that someone check said need to replace fuel tank .... cuz it has corrosion inside tank when re… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
4,333 satisfied customers
87 Cummins 400 vin: 11413277 head gasket leaking between #1
87 Cummins 400 vin: 11413277 head gasket leaking between #1 and #2 head and the truck smokes terribly when first started and pops a little but then clears up and appears to run fine,, I assumed it was… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
Timing and M14 motor Specifically the timing specifications
Timing and M14 motor Specifically the timing specifications for an N14 Cummins … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I Have 2007 Cat C7 I lost # 6 blowing white smoke I pulled
I Have 2007 Cat C7 I lost # 6 blowing white smoke I pulled the injector when i went to vac out the cylinder bore there looks like alot of coolant was in the cylinder … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
I have marine cummins engines and port is showing excessive
I have marine cummins engines and port is showing excessive blue exhaust smoke, year 2000 with 380 hours … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 satisfied customers
Working on a Cat C12. Burning anywhere from 5 to 8 gal a day
Working on a Cat C12. Burning anywhere from 5 to 8 gal a day last fall during harvest. Brought into shop finally to work on, before it was plain ally visible white smoke from exhaust feeling comfortab… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
3306pc got hot now it pressurizes cooling system, could it
could it be the pre cup seals, once engine is running white smoke clears up but now blows out coolant out over flow even with 16 pound cap … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 satisfied customers
I have 88 Peterbilt 379 with a Cummins Big Cam IV cpl#821
I have 88 Peterbilt 379 with a Cummins Big Cam IV cpl#821 that we just replaced a cracked piston in cylinder #3, the middle head gasket, one cracked exhaust valve and one intake valve and of course di… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
We have 1989 western star with l10 400 hp Cummins motor in
we have 1989 western star with l10 400 hp Cummins motor in it. We did an inframe to the motor, we sent cyl head out for rebuild, head was cracked, after 5 attempts the machine shop found a good core t… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a 2006 cummins, about a year ago I started my truck
Hi there, I have a 2006 cummins , about a year ago I started my truck ran good then 1min later truck was shaking sounded like it was missing, engine light came on used my scanner said the code was cyl… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a detroit d14 it is useing 3 gallons of coolint in a
I have a detroit d14 it is useing 3 gallons of coolint in a ten hour window their is no coolint in the oil it puffs white smoke for three minutes on start up then quits. I have pressure tested the sys… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
I have a cummins ism engine. It has clouds of smoke after
I have a cummins ism engine. It has clouds of white smoke after the engine gets ran awhile.would this be the egr cooler or cracked head?… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a 89 no fb14 it is smoking like crazy smoke was told
hi i have a 89 hino fb14 it is smoking like crazy white smoke was told the turbo needs to be rebuilt and coolant is leaking out the exhaust do to this it has a w04d hino diesel engine… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
2000 N14 cummins loosing coolant runs great, no overheat, no
2000 N14 cummins loosing coolant runs great, no overheat, no mixing of any fluids, will loose coolant fast 1 gallon in a few hours. can see steam coming from blow by and oil fill tube.… 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
there ... I have 99 Sterlin , it dropped valve on #1
Hello there ... I have 99 Sterlin , it dropped valve on #1 cylinder Replaced head , polished cylinder didn't seem to be much damage to block. Ran great for 3 hrs , then white smoke blow by . Do I have… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 satisfied customers
Recently about three weeks ago, I took the truck to my mechanic
Recently about three weeks ago, I took the truck to my mechanic because I was hearing a slight miss in the engine while experiencing a loss of power. He also noticed the slight miss in the engine and … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 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

4,333 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