It could be a head gasket, had one tractor overheat at an idle but running it'd be okay. Right now I'm diagnosing an overheating issue on a tractor with a new waterpump and tstat. Once it loses air flow it overheats quick. We're thinking head gasket or radiator.
Is there any chance anyone put stop leak into your cooling system before?
You will know when you shoot them which is which. If there is a large drop there is a problem, and if there is no drop in temp there is a prob.
From my Not-So-Smart phone
Call a Cummins central power closest to you and have your engine serial number ready.
It could be a head gasket, had one tractor overheat at an idle but running it'd be okay. Right now I'm diagnosing an overheating issue on a tractor with a new waterpump and tstat. Once it loses air flow it overheats quick. We're thinking head gasket or radiator.
Is there any chance anyone put stop leak into your cooling system before?
I'd start with more simple things that could be wrong before jumping to that route. Check your coolant mixture shoot some thermals