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 3054c t2 cat eng that has a problem with air
i have a 3054c t2 cat eng that has a problem with air bubbles coming out of the radiator … read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 satisfied customers
I have 2006 freightliner century with Detroit 60 12.7 truck
I have 2006 freightliner century with Detroit 60 12.7 truck was running good until 2 days ago, suddenly while I was cruising at 60 mph its start to sputter / jerk fells exactly like cars with distribu… read more
Expert
Expert
7,393 satisfied customers
I have a cat 3126 that seems to have a head gasket or a head
I have a cat 3126 that seems to have blown a head gasket or a head in the 5 and 6 hole what would be a cause for this?… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
Cat 3126b 450hp 3gs02038 in my boat. Loud knock out of the
Cat 3126b 450hp 3gs02038 in my boat. Loud knock out of the air intake at low rpms. I un-plugged each injector one at a time and it stopped when #6 was in-plugged. I replaced #6 injector and there was … read more
catmastertech
catmastertech
Field service technician
Vocational, Technical or Trade Scho
1,303 satisfied customers
I have oil in the radiator of a Cat c7 engine. The oil
I have oil in the radiator of a Cat c7 engine. The oil cooler and oil filter housing have been replaced with cat oem parts. The engine has been rebuilt and a cracked head was found and replaced. Also,… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
I have a 2003 international 4300 dt466, 553243 km on inframe
I have a 2003 international 4300 dt466, 553243 km on inframe rebuilt at 350k, started overheating, oil mixing coolant, replace oil cooler, ran for 1hr. all looked ok, parked an d tried to restart in 4… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
Cat c13 KCB idle runs perfect but on the road has no power
Cat c13 KCB idle runs perfect but on the road has no power at all no codes so you think that I got a turbo problem… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
2010 gehl4640e turbo .Deutz td2009l04. Blowing smoke. change
2010 gehl4640e turbo .Deutz td2009l04. Blowing white smoke . change fuel and filter. Dealer gave up 600 hrs.on machine. compression with in specs .Pop tested injectors all with in specs ,spray well. T… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 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
5,234 satisfied customers
I have twin 3126 cats Marine motors in my boat. We have just
Hi I have twin 3126 cats Marine motors in my boat. We have just replace mechanical injectors, turbos and aftercoolers. We are using the correct oil. New filters air fuel and oil. I was running sweet f… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
MR. CAT-MAN...PRE EXISITING CONDITION: HELP PLEASE!! We
MR. CAT-MAN...PRE EXISITING CONDITION: HELP PLEASE!! We thought we had this truck properly repaired, only to find out that the unit is acting the same way as before! 2002 Caterpillar C7 3126 7.2 liter… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
C13 cat will blow coolant out of radiator cap coolant tank
C13 cat will blow coolant out of radiator cap coolant tank during first 5 miles of each day... Changed cap but problem still there, blows about a gallon out each day and I refill to sight glass level … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
Hallo Cat man, We have some problems with a C9 engine. It
Hallo Cat man, We have some problems with a C9 engine. It runs perfectly when no load but not when putting some load ( a turbine ) when engine is at 1800 RPM. The RPM drops a lot when under load. When… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
I have cat 500 my coolant is blowing out oil temperature is
I have cat 500 my coolant is blowing out oil temperature is 200 water temperature is 190 when truck runs idle coolant is not blow out but when run on road it is blowing out each 7or 8 hours red engine… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
2000 CAT 3126 IN A FREIGHTLINER, I HAVE REPLACED ALL INJECTORS
2000 CAT 3126 IN A FREIGHTLINER, I HAVE REPLACED ALL INJECTORS , PRESSURE REGULATOR CK VALVE REAR OF HEAD , AND ALSO REPLACED FUEL PUMP ON BACK OF HEUI. STILL WHEN STAR UP COLD [ 60 DEGREES ] FIRES RI… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
We talked about this same engine earlier and you gave me the
We talked about this same engine earlier and you gave me the following advice...I assumed you had a C7. The C7 has much more problems than the earlier 3126. The Heui pumps on C7 engines are known to f… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 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
1,700 satisfied customers
we have 2006 freightliner business class M2 with C9 caterpillar
we have 2006 freightliner business class M2 with C9 caterpillar motor. Once it warms up (over 150 degrees) starts to blow heavy white/grey smoke. Worse under load and higher RPM's. No check engine lig… 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

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