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
2007 International with a Isx 435st Cummins. My engine has a
2007 International with a Isx 435st Cummins. My engine has a loud whistling sound and soot covering the surface of the passenger side of the engine . Egr was replaced 3 months ago. Oil is being expell… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 satisfied customers
I have a Cat C13 SN: KCB81769 with 258k miles on it.
I have a Cat C13 SN: KCB81769 with 258k miles on it. Recently it has developed some blow by. It doesn't seem excessive, but it went from zero to some in 2 weeks. The truck does not drip any oil out of… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I am using 2 quarts of anti-freeze a day in a 2016 Kenworth
I am using 2 quarts of anti-freeze a day in a 2016 Kenworth with a Cummins 550 ISX. Checked the EGR cooler and both sides of the turbo and … read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 satisfied customers
06 int 4300 dt 466 Blue smoke pouring out truck at idle and
second opinion] 06 int 4300 dt 466 Blue smoke pouring out truck at idle and while driving. Injectors look good....… read more
Alex Olsen
Alex Olsen
auto/diesel/industrial
522 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
1,458 satisfied customers
Bought a 2005 Freightliner water truck with a CAT C7 from an
Bought a 2005 Freightliner water truck with a CAT C7 from an online auction place sight unseen. Now I know why they were selling it. When they delivered it, there was oil all underneath the chassis th… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
Catman I have Eng sn MXS44287. the driver said it has used 5
catman I have Eng sn MXS44287. the driver said it has used 5 gal of oil in a day 500 miles. it started suddenly. He said the oil is coming out the blow by. I just put a jug of water under the blow by … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have a 2005 Freightliner Classic with a 14l Detroit. I
I have a 2005 Freightliner Classic with a 14l Detroit. I purchased this truck new. Serviced every 15,000 miles. It has 900,000 miles on it. It runs great. No smoke from stacks, no puffing from engine … read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
3,400 satisfied customers
I have cummins isc 2009 With dpf It's building very
Hello I have cummins isc 2009 With dpf It's building very excessive blow by even blowing engine oil through blow by What could cause that??… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 satisfied customers
Have oil getting into my coolant, coolant level remains the
Have oil getting into my coolant, coolant level remains the same so I,m thinking that it cant be that much? Everyday I dunk a couple of paper towels into coolant resovoir and soak out oil on top. Truc… read more
Curtis B.
Curtis B.
Retired service manager
Associate Degree
3,486 satisfied customers
1994 cummins n-14 in freightliner was getting close to 7 miles
1994 cummins n-14 in freightliner was getting close to 7 miles per gallon then it was hard starting takes about 10 seconds to turn over but okay when running no white or black smoke put orings in inje… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
3,632 satisfied customers
Having issue with turbo boost on 2007 ISX. (serial # *****)
Having issue with turbo boost on 2007 ISX. (serial # *****) Boost will range from 16-32 psi. Kinda stuck at 16-18psi max right now. Next hill might jump to 22-25. Any idea?… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 satisfied customers
C7 engine leaks oil out of the exhaust. Changed the turbo
C7 engine leaks oil out of the exhaust. Changed the turbo twice, and changed the cylinder head. It still leaks while running. Now there is oil in the air cooler and intake.… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
2006 Mercedes 4000 smokes when started clear up when u drive
2006 Mercedes 4000 smokes when started clear up when u drive it and has blow by just replaced head gaskets new egr valves and cooler could I have bad turbo… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 satisfied customers
I have a freightliner m2. C7. 300hp. It shows code 6H 164.
I have a freightliner m2. C7. 300hp. It shows code 6H 164. 51d 020 fail 07 can you help.... also should this truck have alot of blow by… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I had a dyno done on an 08 C15. Blowby at 1900 RPM was 9 (in
I had a dyno done on an 08 C15. Blowby at 1900 RPM was 9 (in H20) At 1700 RPM it was down to 6. 1300 it was 4. Is this normal? Also, the dyno had HP and also a C_VPwr. I know this is corrected HP, but… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
I have a truck with a 3406e engine in it. It has some blowby
I have a truck with a 3406e engine in it. It has some blowby and uses about a gallon of oil every two to three thousand miles, we run local on dirt roads and the work it does is hard pulling so I dont… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
4,965 satisfied customers
freightliner fl60: hi i have a 2000 freightliner with a 5.9
hi i have a 2000 freightliner with a 5.9 cummins with 295k miles the truck runs like a champ and doesnt loose any power. i had a bad oil leak and replaced the oil pan gasket, the front cranks seal wit… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,458 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

3,632 satisfied customers

Owner at DJ Wilson

Cat Man

Cat Man

Cat Engine Expert

4,965 satisfied customers

I am ASE Master Truck Certified.

Wayne

Wayne

Journeyman

3,400 satisfied customers

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

Jeremy

Jeremy

Certified Truck/Bus Technician

2,672 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

1,458 satisfied customers

All types of Cummins applications

Chris (aka-Moose)

Chris (aka-Moose)

Technician

149 satisfied customers

16 years of experience

dieseldan55

dieseldan55

Contractor

77 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