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Related Medium and Heavy Trucks Questions
After changing both hoses for the main rafiator, I think the
After changing both hoses for the main rafiator, I think the hot air radiator for the steering house will need venting and wonder how to do it. … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
2014 Kenworth T 800 with a Cummins ISX 15 in it using half a
2014 Kenworth T 800 with a Cummins ISX 15 in it using half a gallon of coolant a day, no visible leaks radiator overflow tank under a enormity pressure ,radiator hoses bulging, help to diagnose… read more
Mike Mcmillan
Mike Mcmillan
Triage Tech/Shop Foreman
Associates
418 satisfied customers
I have a 1997 freightliner classic with a detroit 12.7. I
I have a 1997 freightliner classic with a detroit 12.7. I pulled over the other night and a hose leaking water at one end. I cut the hose end a re attached. I could not get a hold of enough coolant to… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
Truck running too cool. C15 6nz had thermostat replaced.
Truck running too cool. C15 6nz had thermostat replaced. After warmup, takes 20 miles to get temp to 190. Temp drops 15 degrees going thru a small town, then it will pick back up in few miles. At 800 … read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
I have a customer with 2004 sterling dump truck, C-13 Cat
I have a customer with 2004 sterling dump truck, C-13 Cat engine. Came in with a leaking EGR cooler(looks more like an intercooler,no exhaust flowing through it) leaking coolant into air intake system… read more
Don
Don
fleet superintendent
Vocational, Technical or Trade Scho
1,636 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
I have a C15 in my shop that we did a complete rebuild back
I have a C15 in my shop that we did a complete rebuild back in august. Truck came back in December with a coolant leak. Found that the radiator had failed. Replaced the radiator and when test driving … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 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
Second opinion] I's having problems with my truck. It's
Second opinion] I's having problems with my truck. It's losing water and couldn't find a leak. the back pressure is coming through the radiator cap… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
2006 Peterbilt 387 with a cat C15 dual turbo. first off im
2006 Peterbilt 387 with a cat C15 dual turbo. first off im new to these big engines. one of the blue hoses with a valve(the top one theres 2) on the passenger side towards the front of the motor was o… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 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 a 2009 peterbilt,it is wanting to build pressure in
I have a 2009 peterbilt,it is wanting to build pressure in the overflow tank.I changed the radiator cap,the hose between the radiator and reservoir is not plugged,I bypassed the precooler between the … read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
5,234 satisfied customers
I HAVE A 2006 NO 258 WHICH IS OVERHEATING AND PUSHING
I HAVE A 2006 HINO 258 WHICH IS OVERHEATING AND PUSHING COOLANT. IT WILL RUN FINE SITTING AT IDLE BUT WHEN ACCELERATED WILL PUSH COOLANT. HAS NO HEAT EITHER AND WHEN PULL THE HEATER CORE HOSES OFF GET… read more
Daniel Wilson
Daniel Wilson
Auto Mechanics 1&2/diesel mech
4,737 satisfied customers
Freightliner 2001 problems with front cab heater changed
Freightliner 2001 problems with front cab heater changed valve on firewall changed sensor on fan changed dashboard knob - no results! Can you help me?… read more
Roy Belding
Roy Belding
7,528 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
I have changed the thermostat and fan hub but can't get any
I have changed the thermostat and fan hub but can't get any heat inside the cab. I am being told that the head gasket is causing compression in the cooling system… read more
Curtis B.
Curtis B.
Technician
Associate Degree
39,013 satisfied customers
Hello Wayne I have this same problem I don't under stand what
Hello Wayne I have this same problem I don't under stand what your a telling this gentleman to do… read more
Wayne
Wayne
Journeyman
Vocational, Technical or Trade Scho
4,023 satisfied customers
i have a 2005 gmc t7500 with an 6hk1 isuzu diesel engine that
i have a 2005 gmc t7500 with an 6hk1 isuzu diesel engine that blew the heater hose that comes out of the waterpump. we replaced it and two miles later it blew again. we bypassed and have been running … read more
Jeremy
Jeremy
Certified Truck/Bus Technician
Associate Degree
2,740 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

39,013 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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