Medium and Heavy Trucks

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Kenworth T660 with Cat C-15 sdp 21414 engine. Recently got
Kenworth T660 with Cat C-15 sdp 21414 engine.Recently got ultrashift clutch replaced and now I have crazy amount of greenish greesy stuff filled in my coolant tank its thick . But truck does not build… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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We have another truck issue with the coolant system purging
Hey Mike,We have another truck issue with the coolant system purging out of the pressure relief on the coolant tank. We have read that it could be a few issues. We have replaced the vent cap as a quic… read more
Mike Mcmillan
Mike Mcmillan
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What does piece do that comes with an air dryer and goes on
What does piece do that comes with an air dryer and goes on air tank off international 9400i? My other international I'm robbing tanks off of doesn't have this piece. I'm wondering if I need it.… read more
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engine not over heating building preasure blowing out of raiator cap also air b ubbling in expansion tank … read more
Wayne
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Cummins N14 Celect poor fuel milage,strugles to get moving
Cummins N14 Celect poor fuel milage,strugles to get moving when loaded. It's so weak that i cant even slide the tandems on my trailer,it just jumps and dies. Been to many shops and changed almost all … read more
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Mike Mcmillan
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CATMAN 5ek engine .. show very high coolant codes. opened
CATMAN 5ek engine .. show very high coolant codes. opened hood and noticed coolant out over flow hose... did block test. if fluid changes from blue to yellow means combustion gasses present in coolant… read more
Cat Man
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Vocational, Technical or Trade Scho
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I have 2009 freightliner M2 with ISB engine less than 26000
I have 2009 freightliner M2 with ISB engine less than 26000 lb gross weight. The truck is loosing coolant through the overflow on the coolant tank. I changed the cap with a new cap rated 20 pounds of … read more
Expert
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Been getting oil in coolant on isx 535hp. Changed oil
Been getting oil in coolant on isx 535hp. Changed oil coolers still happening. Dug deeper found #5 liner starting to gald. Had inframed and now still getting oil in water. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
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there is air bubbles in cooling system Volvo 2007 D12 that
there is air bubbles in cooling system Volvo 2007 D12 that build up high pressure,as a result the coolant is overflow thru the cap of reservoir.Thank you.… read more
Curtis B.
Curtis B.
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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
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Vocational, Technical or Trade Scho
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Hello. I have 1998 detriot 12.7 500 hp. Lately it's been
Hello. I have 1998 detriot 12.7 500 hp. Lately it's been using radiator fluid. Bit no visible leaks. Two days ago started temp rising , then fan kicks on and cools back down. However, it's pushing rad… read more
spankyjr1
spankyjr1
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Have a 2007 western star/C-15 accert 550hp.Did a inframe in
Have a 2007 western star/C-15 accert 550hp.Did a inframe in july 2013,did not replace head.In december started blowing antifreeze out the rad cap,had a lot of preaure behind it.Back to shop,new head a… read more
Cat Man
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I have an International Prostar 2010 truck with cummins ISX.
I have an International Prostar 2010 truck with cummins ISX. When engine warms up, the coolant fluid in the tank starts bubbling like in a jacuzzi and it's not even hot. High pressure builds up in the… read more
Curtis B.
Curtis B.
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My M/benz Actross Mp2 3348 2007 Keeps on blowing the top and
My M/benz Actross Mp2 3348 2007 Keeps on blowing the top and bottom Radiator hoses off when we refill the header tank we are not getting any bubbles and the problem occurs now and then with approximat… read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
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Hi there im currently working on 2008 intl. prostar with high
Hi there i'm currently working on 2008 intl. prostar with high pressure in the cooling system,loosing coolant trough the overflow tank. wont build pressure until water temp reaches 150F, then the driv… read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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I have 2006 ISX and it is pressurizing coolant from the filler
I have 2006 ISX and it is pressurizing coolant from the filler side to reservoir side and then pushes it out the hose I did combustion test and lab sample and coolant is clean put new compressor on EG… read more
cumminsdr
cumminsdr
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High School or GED
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I have a 2005 International w/ DT466E It does not overheat,
I have a 2005 International w/ DT466E It does not overheat, no fuel in coolant no water in oil... but I get a steady stream of air bubbles out of the top return line to the coolant tank... so after ti… read more
Cat Man
Cat Man
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i have a 2007 freightliner columbia with a detroit 60 engine
i have a 2007 freightliner columbia with a detroit 60 engine ser # XXXXX that is making oil into the coolant system we have already changed oil cooler and flushed the system several times is there any… read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
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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

38,577 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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