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c90d5 cummins LOW COOLANT WARNING ???

2K views 1 reply 2 participants last post by  tractornut 
#1 ·
Hello . I have a 90 kva cummins , and it runs for about an hour, then cuts off.
i know that is a good thing as it shows me the over heating sensor is functioning ok.

but what i carnt understand is WHY ??? it has good oil levels, and the radiator is full ???? very confused , and frustrated, all suggestions would be really appreciated, thanks:(
 
#2 ·
I would start with the basics like making sure there is no air trapped in the cooling system followed by checking that air flow through the radiator isn't blocked also the thermostat could be sticking open or closed and finally just because the temp sensor is shutting it down doesn't mean that it is reading correctly
 
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