Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I noticed a coolant leak dripping down onto dozer valve on
Hey Scott I noticed a coolant leak dripping down onto dozer valve on my 2011 maxxforce13. When I crawled under the truck it looks oily and goopy and is dripping off of a heat shield that covers the ex… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
11,514 satisfied customers
I have a 2013 Detroit dd15 that is putting exhaust into the
I have a 2013 Detroit dd15 that is putting exhaust into the intake and is skipping bad, I'm sure it's going to be a dropped, burnt, or bent valve. It's in a freightliner cascadia so what's the book ti… read more
Roy Belding
Roy Belding
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Got oil floating on top of coolant in reservoir... just had
Got oil floating on top of coolant in reservoir... just had oil module gaskets replaced a week ago and also had over haul done last July 2018.. all work done at dealer … read more
Bradey V
Bradey V
Certificate
I have a freightliner M2 that have a 1037-0 code. The dpf
I have a freightliner M2 that have a 1037-0 code. The dpf waa cleaned and the flow is good but it wont get hot enough to do a regen … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
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I had my turbo replaced about 2 months ago. I noticed by my
I had my turbo replaced about 2 months ago. I noticed by my coolant filter or whatever filter that's by the turbo I seen some oil around it. I climb on top and I guess by the side of the motor I guess… read more
Mike Mcmillan
Mike Mcmillan
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Have a Universal M35A installed in my Catalina 34. Removed
Have a Universal M35A installed in my Catalina 34. Removed exhaust pipe from exhaust flange to repair weld of heat exchanger water inlet. Reinstalled pipe on exhaust flange with new gasket from you Pn… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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I have a 2007 C-15 Acert. This was a crate block in 2016 and
I have a 2007 C-15 Acert. This was a crate long block in 2016 and had a head gasket replaced in Feb of 2017. Cat says it is now out of warranty. Go figure. Yesterday i had smoke coming from my stack a… read more
Cat Man
Cat Man
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Wayne, Our 2009 International Prostar (Cummins ISX) is going
Hey Wayne,Our 2009 International Prostar (Cummins ISX) is going through antifreeze like crazy. A gallon a day. No apparent leaking and my driver can smell it. What could be going on? What should we be… read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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I have a 2010 kenworth t660 with a 455hp cummins isx.... it
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Roy Belding
Roy Belding
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Catman I have a 6nz and it has crank case pressure. It has
catman I have a 6nz and it has crank case pressure. It has also been burning oil. It is pushing oil as well as white smoke out of the blow by tube heavily and has oil drips from the rear expansion joi… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have a 2007 Peterbilt 379 with a C15 engine that is losing
I have a 2007 Peterbilt 379 with a C15 engine that is losing a lot of antifreeze but does not have any visible leaks other than the drain tube from the reservoir. It is building high pressure, but is … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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have a 2009 freightliner cascadia with DD15 engine. The cooling
have a 2009 freightliner cascadia with DD15 engine. The cooling system is overpressurizing spewing coolant at speeds above idle. No oil in coolant and no water in oil. Engine runs fine not hot and no … read more
Daniel Wilson
Daniel Wilson
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I Have a 2008 International 4300 Maxxforce it was useing
I Have a 2008 International 4300 Maxxforce it was useing colliant but couldnt see a leak, but could hear a small hissing on passanger front, after shut off (could be air from air brakes) but yestarday… read more
Andy
Andy
truck /coach technician
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My 1996 3406e cat got a out of frame overhaul 276,000mi. ago.
My 1996 3406e cat got a out of frame overhaul 276,000mi. ago. And now the antifreeze is missing , truck is smoking and coolant is leaking by turbo waste gate but oil sample is good. What is going on?… read more
Cat Man
Cat Man
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I have an 2005 475 isx. it is not firing on the rear bank of
I have an 2005 475 isx. it is not firing on the rear bank of injectors. heavy white smoke, and after running it there is diesal fuel oozing out of the bend in the exhaust dripping on fuel tanks. local… read more
cumminsdr
cumminsdr
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High School or GED
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I asked a question yesterday about my truck which has been
I asked a question yesterday about my truck which has been blowing smoke the exhaust pipe is covered in oil, the mechanic yesterday told me its probably the turbo, but from the turbo which connects to… read more
DirectInjection
DirectInjection
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I have a 2003 freightliner with a cat c15 in it it seems to
I have a 2003 freightliner with a cat c15 in it it seems to go thru about 2 gallons of antifreeze a week in the winter but uses none in the summer. We have pressure tested the cooling system and it se… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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Have a c15 6nz rebuilt 1 month ago because putting antifreeze
Have a c15 6nz rebuilt 1 month ago because putting antifreeze in base around bottom of #2 liner because o rings bad. Liner protusion good and block deck good, first rebuild. After 3 weeks starting put… read more
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Meet the Experts:

Daniel Wilson

Daniel Wilson

11,514 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

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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.

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