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
2005 Ford F750SD VIN# ***************** ENGINE SER.
2005 Ford F750SD VIN# ***** ENGINE SER. #57311952 truck goes into limp mode halfway through the day, codes spn 110 fmi 0 spn 110 fmi 16 , replaced the coolant temp sensor.… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
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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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Vocational, Technical or Trade Scho
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Just had my 2006 Cummins isx 565 rebuilt I have 15000 lbs on
Just had my 2006 Cummins isx 565 rebuilt I have 15000 lbs on the deck my oil temp keeps running at 240 to 250 the coolant will jump to 230 to 240 just rebuilt the motor and new radiator and fan and al… read more
Mike Mcmillan
Mike Mcmillan
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I have a 1998 9682 new holland versatile. it has heated ever
i have a 1998 9682 new holland versatile. it has heated ever since i owned it. they say there is a kit to change the v belts to surpatene belts but cannot the kit. i have put a larger air cleaner and … read more
Curtis B.
Curtis B.
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2011 kenworth MX13, overheating even with radiator fan on
2011 kenworth MX13, overheating even with radiator fan on continuously. What to check first, coolant level ok.… read more
][\][iCk0411
][\][iCk0411
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Vocational, Technical or Trade School
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07 isx overheating. Replaced the water pump, replaced the
07 isx overheating. Replaced the water pump , replaced the thermostat, replaced the temp sensor , washed radiator with steamer and replaced egr valve as well , and replaced exhaust temp sensor as well… read more
Jeremy
Jeremy
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Got a series 60 engine that was fully rebuilt last year
Got a series 60 engine that was fully rebuilt last year 2015. I took the block to machine shop and they cut the counter bores and shaved the deck. A few months later after assembling engine and pullin… read more
Wayne
Wayne
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Vocational, Technical or Trade Scho
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2011 Isuzu NPR 5.2L Turbo Diesel. Vehicle overheats only
2011 Isuzu NPR 5.2L Turbo Diesel. Vehicle overheats only when going up steep incline. Fluid is full, no leaks found, thermostats are new. Potential cause?… read more
Jeremy
Jeremy
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I have a688 dump. While driving on ghway or pressure on
Hi Keith I have a*****688 dump. While driving on highway or pressure on engine truck overheats, I pull over or up to light it cools on its on. Heat in can blows out but not hot air. Thanks.… read more
Daniel Wilson
Daniel Wilson
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2004 Peterbilt w/C15 Acert (BXS) Okay i finally got fan
2004 Peterbilt w/C15 Acert (BXS) Okay i finally got fan situation figured out and it now cycles on @ 217 and off @206 like it should. BUT now when it gets hot (230 i believe) the buzzer comes on and "… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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Freightliner fl 112 is overheating changed thermostat changed
Freightliner fl 112 is overheating changed thermostat changed coolant fan seems to be blowing fast from moment I turn truck on but doesn't seem to be cooling engine down… read more
Roy Belding
Roy Belding
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My sprinter 410 minibus has high temperature of up to 90 degrees
My sprinter 410 minibus has high temperature of up to 90 degrees Celsius but not mixing water or oil. What could be the problem… read more
Curtis B.
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Answers from Two Experts requested: 2008 Fleetwood Discovery motorhome with Cummins 6.3ISL
2008 Fleetwood Discovery motorhome with Cummins 6.3ISL; has about 20k miles now. Have pulled a 6T trailer for years without any trouble relative to coolant temp, all of a sudden any hill I have to cli… read more
Don
Don
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Answers from Two Experts requested: 2008 Fleetwood Discovery motorhome
2008 Fleetwood Discovery motorhome with Cummins 6.3ISL; has about 20k miles now. Have pulled a 6T trailer for years without any trouble relative to coolant temp, all of a sudden any hill I have to cli… read more
Geoff
Geoff
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I have a 2008 peterbuilt 387 with cummins isx engine and it
I have a 2008 peterbuilt 387 with cummins isx engine and it runs hot sometimes when it does fuel millage goes down what could be the problem?… read more
Travis A. Wells
Travis A. Wells
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I have a 2005 Kenworth T800 with a c-15 cat engine. Truck is
I have a 2005 Kenworth T800 with a c-15 cat engine. Truck is overheating, the fan won't kick in and once I switch the fan to manual, the temperature stays high and doesn't drop. I replaced both thermo… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have 1993 Chevy G20 V8 which overheats up long hills. I just
I have 1993 Chevy G20 V8 which overheats up long hills. I just drove from Austin to LA without overheating at all. Now the temp gauge goes over half way point driving up a few small hills. What could … read more
tkman55
tkman55
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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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