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C15 cat in 2005 international run hot at 210deg and hoter…

C15 cat in 2005...

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

Mechanic's Assistant: We'll do all we can to help. Tell me a bit more about what's going on so the Heavy Equipment Mechanic can help you best.

Average tempature is 290- pullin an empty trailer , loaded it exceeds 220 deg.befor fan comes on and still over heats

Mechanic's Assistant: Is there anything else important you think the Heavy Equipment Mechanic should know?

Engine exceeds over i million miles bought it with 1 million miles showing on odometer

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Answered in 5 minutes by:
7/23/2016
Technician: Cat Man, Cat Engine Expert replied 6 years ago
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 10,344
Experience: I am ASE Master Truck Certified.
Verified
Thanks for asking your question. I will try and help you out.
The engine ECM should turn the fan on at 217 degrees. If it's not coming on til 220, your gauge is most likely reading off 3 degrees or the sensor is reading off. I've seen this before.
The C15 is not considered running hot until it gets to 228 degrees.
Does the red engine warning light come on? Does the temp reach 228?
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Customer reply replied 6 years ago
Unsatisfied with method of offering not with answer
Technician: Cat Man, Cat Engine Expert replied 6 years ago
I am sorry you feel this way. I am only trying to help. My goal is to give great service.
If your engine is not getting to 228 degrees and the red engine warning light is not coming on. Your engine is not running to hot.
In addition it's common for a C15 to run up to over 220 in a pull up a hill.
If by chance the engine is running a little harder than it use to. You've lost likely got a partially restricted radiator either on the inside or outside. I see this a lot.
Over time the radiator slowly gets clogged and at the peak of summer in a pull it will begin to run hitter than normal.
I would not suspect a water pump nor a thermostat. When they are the problem. The engine normally overheats all the time.
Please reply back if you need more help or have more questions. I am happy to assist.
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Customer reply replied 6 years ago
Satisfied thanks
Technician: Cat Man, Cat Engine Expert replied 6 years ago
You are very welcome my friend. I am happy I could help.
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 10,344
Experience: I am ASE Master Truck Certified.
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