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2005 kenworth t800 log truck with c-15 twin turbo catmy

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2005 kenworth t800 log truck...
2005 kenworth t800 log truck with c-15 twin turbo cat
my problem is my water temperature lately I can get any temperature out of it ,on the flats its lucky to get to much over 50 deg , but when pulling a hill it will climb up to 200 deg , it always used to run anywhere from 170 to 200 deg any ideas?
Submitted: 7 years ago.Category: Medium and Heavy Trucks
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Answered in 6 hours by:
12/31/2014
Technician: Cat Man, Cat Engine Expert replied 7 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
Hi. Thanks for asking your question! I will try and help you out.
The only thing I have seen cause a C15 to over cool is one or both thermostats are stuck open. When this happens, the engine will overcool at low loads and have normal temp at high loads. I would consider replacing the thermostats.
Please reply back if you need more help or have more questions. I am happy to assist.
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