Medium and Heavy Trucks

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Cummins x15 runs hot loaded never gets below 200 unless on
Cummins x15 runs hot loaded never gets below 200 unless on down hill grade … read more
cumminsdr
cumminsdr
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High School or GED
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2008 cummins ISX450 in an International Prostar truck.
2008 cummins ISX450 in an International Prostar truck. Coolant temperature gets up to 220 degrees then the fan comes on and it gets back down to 190 then fan goes off but it creeps right back up to 22… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
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2000 FLD 120, N14. Sometimes the temp light/buzzer goes off
2000 FLD 120, N14. Sometimes the temp light/buzzer goes off randomly, coolant is full and temp is normal. Fan was kicking on like normal when temp called for it to come on, then later it would only co… read more
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Have a 1996 freightliner fld 120. With a detroit 60 series.
Have a 1996 freightliner fld 120. With a detroit 60 series. … read more
Daniel Wilson
Daniel Wilson
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1998 Freightliner Fld 120. Series 60 Detroit 12.7 liter
1998 Freightliner Fld 120. Series 60 Detroit 12.7 liter engine. I'm losing coolant out of the radiator. There is bubbles in there when truck is running. Combustion leak test came back good and there i… read more
Chris (aka-Moose)
Chris (aka-Moose)
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Can you put acert water pump on single turbo c15. Cat
2001 Pete 379. Wondering if acert high volume pump would better cool my non acert cat… read more
Cat Man
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Cat Engine Expert
Vocational, Technical or Trade Scho
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I have an O7 Freightliner where is a C15 acert twin turbo at
I have an O7 Freightliner where is a C15 acert twin turbo at 475 horse I've driven it over 300,000 miles recently I had an overheating issue and it cos they had to crack and I had it in the shop and I… read more
Cat Man
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Vocational, Technical or Trade Scho
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Alex. I got the fan gear drive changed out on my 2011 pro
Hey Alex. I got the fan gear drive changed out on my 2011 pro star with Maxxforce13 The trouble is the fan is only engaging about 215 and barely keeps the truck from Overheating. I'm rushed with a tra… read more
Andy
Andy
truck /coach technician
Vocational, Technical or Trade School
207 satisfied customers
C15 cat in 2005 international run hot at 210deg and hoter
c15 cat in 2005 international run hot at 210deg and hoter when in a pull fan will not come on until it gets to 220 de … read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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I have a 2008 gulfstream tourmaster motorhome (diesel
I have a 2008 gulfstream tourmaster motorhome (diesel pusher) with a mercedes MBE900 engine (330HP) on a Freightliner chassis. Just bought it with 42k miles and in great shape. One drive from Orlando … read more
spankyjr1
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I have a 2009 cascadia dd15, temp,. fan comes on at 220
i have a 2009 cascadia dd15, hi temp,. fan comes on at 220 -225 replace coolant 2x in a week, water pump, water temp sensor, fan sensor solenoid, thermostat all this in one week, and still fan wont st… read more
Jeremy
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Cat Man, I have a 03 6nz. 100,000 miles on it after
Hello Cat Man, I have a 03 6nz. 100,000 miles on it after a out of frame. I have an overheating problem you have already gave me suggestions on. . I've checked my oil cooler, cleaned my radiator and a… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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Hey Cat Man. I have a 2003 pete with a c15 6nz in it. It runs
Hey Cat Man. I have a 2003 pete with a c15 6nz in it. It runs great with no water or oil loss since an out of frame 115,000 miles ago. Since the rebuild it's ran hot. I've replaced the radiator and th… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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Hi I got a c-15 twin turbo runnin hot. Not loaded runs bout
Hi I got a c-15 twin turbo runnin hot. Not loaded runs bout 200 to 210 and loaded I have to manually leave the fan on at all times to keep from overheating. I'm using over a gallon of coolant a week b… read more
Cat Man
Cat Man
Cat Engine Expert
Vocational, Technical or Trade Scho
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Hello i have a problem with my Fan clutch Dreoit Serie 60
Hello I have a 2000 freightliner century with a Detroit 60 Series..... The Engine fan stopped working and wouldn't turn on... I replace the fan clutch and still didn't work... We replace the Air valve… read more
spankyjr1
spankyjr1
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Vocational, Technical or Trade Scho
420 satisfied customers
I have a Cat 3406B. Less than 100K on out of chassis. Was set
I have a Cat 3406B. Less than 100K on out of chassis. Was set up at Cat for factory +10%. New water pump, thermo and radiator is 4 years old w/ no fin problem. Pyrometer runs up pretty quick under lit… read more
Cat Man
Cat Man
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Vocational, Technical or Trade Scho
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1999 Caterpillar c12 in a peterbilt 385. Water pump has been
1999 Caterpillar c12 in a peterbilt 385. Water pump has been replaced, exterior of the radiator has been washed. The engine fan comes on at all temperatures. While driving the temp will be around 210 … read more
Cat Man
Cat Man
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i have a 1988 fld freighliner 3406 cat model need ans. on
i have a 1988 fld freighliner 3406 cat b model need ans. on temp sensors that control fan cluth . what do all the wires control on the swith with 2 termial that set on top side of thermostate housing?… read more
spankyjr1
spankyjr1
Retired
Vocational, Technical or Trade Scho
420 satisfied customers
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Meet the Experts:

Daniel Wilson

Daniel Wilson

11,526 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

38,998 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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