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Dominick
Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
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I have 2012 5.9 cummins marine diesels.Getting a coolant

Customer Question

I have 2012 5.9 cummins marine diesels.
Getting a coolant temp High alarm.
Raw water pump is pumping,belts are good,water circulating through exhaust,strainers are clear. No signs of leaks.
What could it be?
Submitted: 1 year ago.
Category: Boat
Expert:  Diesel Boat Doc replied 1 year ago.
Hi I can help you with your problem. I need more info when does it get hot and when you slow down does it cool off or does it stay hot?

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