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Related Medium and Heavy Trucks Questions
Loosing coolant not leaking on the ground. 2013 kw w-900
i am fixing it myself I haven't tried anything yet … read more
Bradey V
Bradey V
Certificate
E99 7.3. Coolant coming out of cap. Losing a gallon every
E99 7.3. Coolant coming out of cap. Losing a gallon every 100 miles. Any ideas? Cap not blowing off. Truck not running hot.… read more
james Roberts
james Roberts
Maintenance assistant
Vocational, Technical or Trade School
185 satisfied customers
Super Duty 7.3L was underneath the truck today and noticed
Super Duty 7.3L was underneath the truck today and noticed some antifreeze drops that looked fresh. i did quickly move it from outside the garage to inside the garage without warming it up because i d… read more
Expert
Expert
7,469 satisfied customers
ISX CM2350 just will like your opinion on this, how logical
ISX CM2350 just will like your opinion on this, how logical or possible is to have coolant leaking into the fuel rail making it all the way to the fuel tanks then making it back to the fuel water sepa… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
2006 dt466. Trying diagnose possibly leaking engine oil
2006 dt466. Trying diagnose possibly leaking engine oil cooler. Truck has external leak from cooler. Truck has oil in coolant and no coolant in oil. Is there a pressure test to determine condition of … read more
Alex Olsen
Alex Olsen
auto/diesel/industrial
524 satisfied customers
Lots Coolant loss. 2007 freightliner Coronado 60 series
Sorta kinda... no milky mixture in oil, changed reservoir cap ..no boiling over out overflow..no bubbles...I had a previous leak from bunk heater core so I bypassed and no leaks for week then it started the coolant usage I also see clear drip out of blowby tube or condensation I guess. Truck runs fine and ni overheating issues or anything … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
New head and gasket, new rad, new after market turbo. Truck
New head and gasket, new rad, new after market turbo. Truck is full delete, I'm going through 2 gallons of coolant in a 12/14 hour day. I bypassed def tank, checked compressor, trans and all valves fo… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
I have an 08 Volvo with an isx that is going through a
I have an 08 Volvo with an isx that is going through a gallon of coolent every 60 mi can't see anything going out the stack EGR cooler is blocked off dpf is deleted. There is coolent vapor in the cran… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
2006 Cat C15 ACERT. 2 gallons of coolant in 365 miles. Oil
2006 Cat C15 ACERT. 2 gallons of coolant in 365 miles. Oil looks ok on the dip stick but this is on the front axle under the breather tube. Can't find any visible leaks on the coolant system. Any idea… read more
FIX-IT
FIX-IT
Comercial transport technician
Vocational, Technical or Trade Scho
829 satisfied customers
I rebuid this detroit s60 pre egr 6 months ago new
hello i rebuid this detroit s60 pre egr 6 months ago new liner,piston ,head it ran well but now suddenly it start consuming coolant 1 gallon per trip of 1000km no external leak no coolant in oil no co… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Cat Man I have a 6NZ47912 that has oil in the radiator. No
Cat Man I have a 6NZ47912 that has oil in the radiator. No water in the oil that I can tell. But it was 1.5 to 2 gallons low with no noticeable leaks on the exterior. What are the likely causes? Oil c… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 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.
Technician
Associate Degree
1,571 satisfied customers
2007 Volvo 670, Cummins engine 425 hp, We keep getting check.oil
2007 Volvo 670, Cummins engine 425 hp, We keep getting check.oil ALERT...TA was changing sensors...made mistake by putting oil sensor in to fuel sensor place... Now after they fixed that for 2 months … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I am working on a 2010 w900 kenworth with an isx. It is using
I am working on a 2010 w900 kenworth with an isx. It is using about one to two gallons of coolant per week. It does not appear to be leaking anywhere on the engine or truck heating system. I pressuriz… read more
cumminsdr
cumminsdr
Mechanic
High School or GED
1,700 satisfied customers
I have a 2008 volvo with a ISX cummins. the cooling system
I have a 2008 volvo with a ISX cummins. the cooling system is creating a vavvum and sucks the top radiator hose together give me some ideas where to look… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
We bought an o ring kit to replace on injectors the kit has
We bought an o ring kit to replace on injectors the kit has 2 rubber o rings for exterior 1 steel washer goes on inside of injector should we take apart to replace inside seal and if so are there spec… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
my coolant leaks out of my overflow have to pu in 1/2 gallon
my coolant leaks out of my overflow have to pu in 1/2 gallon of water to stop buzzer what is causing this issue.… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
Working on a 1995 Ford Superduty with 7.3 Diesel engine. At
Working on a 1995 Ford Superduty with 7.3 Diesel engine. At idle has 3 psi at oil sending unit port and 7 psi at port on oil filter housing. Oil pressure dose go up when excellerating. Have replaced o… read more
Chris (aka-Moose)
Chris (aka-Moose)
Technician
Vocational, Technical or Trade School
353 satisfied customers
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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

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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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