Medium and Heavy Trucks

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Related Medium and Heavy Trucks Questions
2005 FG is overheating. Radiator seems perfect but isn't
2005 FG is overheating. Radiator seems perfect but isn't getting warm, no flow. … read more
Drue Casey
Drue Casey
Heavy Duty Diesel Mechanic
Vocational, Technical or Trade School
2000 gmc topkick c6500 7.4 454 auto. Replaced radiator due
2000 gmc topkick c6500 7.4 454 auto. Replaced radiator due to small leak and when warming up I noticed the water pump was also leaking and the temp gauge would never go past 80 degrees Fahrenheit on t… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
2013 Mack chu613 MP8 415c deleted. last part of my vin #
2013 Mack chu613 MP8 415c deleted. last part of my vin # DM011873. runs hot pulling. runs cool not pulling. bottom of radiator hotter than the top. I have put on a new water pump, all hoses, belts, fa… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
419 satisfied customers
I HAVE 2008 FRIEGHTLINER COLUMBIA with detriot 60 series
I HAVE 2008 FRIEGHTLINER COLUMBIA with detriot 60 series motor. My truck heatup and after 5 to 10 mints its came at normal like its goes more than 220 and then came back at normal after 5 to mints. Wh… read more
Roy Belding
Roy Belding
7,534 satisfied customers
D9h dozer is running hot. Torque guage is cool but motor
D9h dozer is running hot. Torque guage is cool but motor heats to the red and water relieves from relief on top of radiator. We removed thermostats but didn't help. Is relief valve bad? What pressure … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a 2007 f650 with a 5.9 that gets hot on occasion.
I have a 2007 f650 with a 5.9 that gets hot on occasion. When it does it the check and stop engine light comes on and pegs the gauge and blows water out the overflow. You can let it sit for 10 or 15 m… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a 2005 GMC W3500 I have an over heating issue, I have
Hi I have a 2005 GMC W3500 I have an over heating issue, I have changed fan clutch thermostats, cleaned thermal sensor, and did a flush that cleaned put a black sticky substance. I have not changed wa… read more
Curtis B.
Curtis B.
Technician
Associate Degree
1,571 satisfied customers
I have this detroit s60 egr 2006 at my shop whats the
i have this detroit s60 egr 2006 at my shop whats the nominal coolant pressure its building up around 22-25 psi standing without load at high idle i guess its more than normal already changed the air … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have couple simple questions 1, power steering oil very
Hi I have couple simple questions 1, power steering oil very hot and black , why is that Also it's a 2008 fc hino little 5 TONER Q2 6 month ago had new radiator & thermostat . And now worm weather is … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
I have a 2005 14.7 60series it has always ran hot on water
I have a 2005 14.7 60series it has always ran hot on water temp since I purchased it in 2008.it biulds 40 lbs of manifold pressure but does not pull on the hills.have to run fan pretty much all the ti… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Catman I have a 5ek engine and it is getting hot. It had this
Catman I have a 5ek engine and it is getting hot. It had this problem a month ago. We pulled the radiator it was plugged. We put a new one in and it has been fine. When we pulled radiator we pulled oi… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
10,225 satisfied customers
Cummins 5.9 ISB 300 hp in a rear pusher motor home. I want
Cummins 5.9 ISB 300 hp in a rear pusher motor home. I want to flush the cooling system. heater core is up front and accessible thru front generator service panel. Can I pull a heater hose off the heat… read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 satisfied customers
engine is 12.7 liter on a 60 series detroit engine, i changed
engine is 12.7 liter on a 60 series detroit engine, i changed the head and gasquet and liners but water still mixes with oil what could the problem be? couldthe water pump be the problem?… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
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.
Technician
Associate Degree
1,571 satisfied customers
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
Cat Engine Expert
Vocational, Technical or Trade Scho
10,225 satisfied customers
I have a 1995 Volvo truck with an N 14 Cummins engine. Im
I have a 1995 Volvo truck with an N 14 Cummins engine. Im having to put water in the reservoir every so often. Sometimes it don't blow out at all. the water is blowing out of the overflow pipe from th… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
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
Mechanic
High School or GED
1,700 satisfied customers
I have a running hot problem with my truck (1989 FF177 L )
I have a running hot problem with my truck (1989 FF177 L ) Ho7c motor. It doesnt boil it just goes to the top of the operating range a then drops down. If I keep my eye on the gauge its allrght but I … read more
JCTech
JCTech
Technical Specialist
Vocational, Technical or Trade Scho
352 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

10,225 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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