Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
I am working on a 3406 cat engine. it heats up really
I am working on a 3406 cat engine. it heats up really quickly at a dead idle 195 deg in 10 minutes or so at -15 deg. ambient. It does not over heat just bobtailing down the road never gets above appx … read more
SteveR
SteveR
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High school
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It's a 1999 Peterbilt 379 truck with a Detroit 60 series
It's a 1999 Peterbilt 379 truck with a Detroit 60 series engine. I've replaced the radiator, the water pump, the thermostats, and oil cooler and it still overheats when I'm going uphill. The fan does … read more
Nich1019
Nich1019
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Vocational, Technical or Trade School
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Nick, I've got a 2006 KW T800 CAT C-15, that's pushing
Hello nick,I've got a 2006 KW T800 CAT C-15, that's pushing coolant out. I don't know exactly from where but looks like either cap or vent line… for instance I will check & top off coolant & drive to … read more
Nich1019
Nich1019
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I have a 2006 Freighliner box truck with Cat C7 Engine (SAP
Hi there, I have a 2006 Freighliner box truck with Cat C7 Engine (SAP series). The engine does not overheat while iddling but get very hot when i start driving it at 40 or 50 MPH. We have changed the … read more
Nich1019
Nich1019
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Have a 2008 cat c15 Mxs getting hot even running engine fan
Have a 2008 cat c15 Mxs getting hot even running engine fan bobtailing still running around 195 degrees and blowing around 3 gallons of antifreeze out in a 100 miles but can't tell where it is coming … read more
Nich1019
Nich1019
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Vocational, Technical or Trade School
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Just had a a water pump put in on a 389 Pete c 15 cat now
Just had a a water pump put in on a 389 Pete c 15 cat now truck keep over heating ... Having to put 3 gollons in every time water is not mixing with oil what is causing this … read more
Cat Man
Cat Man
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2004 cat acert c15 Diesel engine over heats only when boost
2004 cat acert c15 Diesel engine over heats only when boost pressure reaches over 30 psi with light loads and 17 psi with heavy loads. No coolant loss or oil. Compression is good on all cylinders. Wil… read more
Cat Man
Cat Man
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I have a CAT 246D (my first skid steer) that I bought used
I have a CAT 246D (my first skid steer) that I bought used and it's now hitting the overheat warning regularly after quite modest usage (maybe 15 mins) If I let it continue to run stationary, it will … read more
catmastertech
catmastertech
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Vocational, Technical or Trade Scho
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I have a bxs c-15 acert twin turbo that all the sudden m/t
i have a bxs c-15 acert twin turbo that all the sudden m/t started to overheat up tp 230 degrees stop making cab heat . the engine hs 560000 original miles on it , i replaced the thermostats and housi… read more
Cat Man
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How can check if my air to air is working on my c-15, Don't
How can check if my air to air is working on my c-15 … read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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Good afternoon Cat man, I have an 08 KW with a C-15 ESN
Good afternoon Cat man, I have an 08 KW with a C-15 ESN SDP11060. It originally came in with a concern of overheat, customer requests new thermostats and coolant. Upon draining the coolant I found the… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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Hi TimL have aproblem with a mack Qauntum 2002 model reco
Hi Tim L have aproblem with a mack Qauntum 2002 model reco radiator new water pump flushed system new thermo- Not in yet,have a problem with coolant circulating around the engine block,can you please … read more
Daniel Wilson
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2008 volvo 670 bobtail runs perfect change radiator ones we
2008 volvo 670 bobtail runs perfect change radiator ones we put trailor on starts overheating very fast. water pump is okay thermostates are new.… read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
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C12 Cat 505HP overheats as soon as I begin any grade at all.
C12 Cat 505HP overheats as soon as I begin any grade at all. I replaced the radiator, thinking that was the issue, it was bad anyway w/ 80K miles on it. It continues to overheat. It's not a truck. It … read more
Cat Man
Cat Man
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I have a 1997 L10 in a Volvo truck and it gets hot at highway
I have a 1997 L10 in a Volvo truck and it gets hot at highway speeds only? we put in a switch so we can turn on the fan manualy as soon as we start the truck, which has been working , but all of a sud… read more
Cat Man
Cat Man
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International 9900i with Cat C-13 overheating all the time
International 9900i with Cat C-13 overheating all the time and fan is running almost all the time after overhaul. I read someplace there is a ball between the thermostats and if it's missing it could … read more
Cat Man
Cat Man
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My 1990 Prevost Bus has a Detroit Diesel engine. The oil temp
My 1990 Prevost Bus has a Detroit Diesel engine. The oil temp guage climbs to 320 (max) and the stop engine light comes on. The water tempreture is only 195. What shoul I do.… read more
Curtis B.
Curtis B.
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Associate Degree
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chev 2500 hd: I have a 2007 chev 2500 6.6 duramax with 320000
I have a 2007 chev 2500 6.6 duramax with 320'000 I am having a problem with the engine overheating when I am pulling a trailer. I tow trailers 40'000 mi a year. this started right after I had a new ai… read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
420 satisfied customers
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Daniel Wilson

Daniel Wilson

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cumminsdr

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Chris (aka-Moose)

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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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