ISL 'normal' operating temp
This is my first Cummins (had a CAT in previous coach). The pesky, expensive, prone-to-failure, Sauer-Danfoss hydraulic fan control gizmo on my rig is likely failed and my side radiator fan runs cons...
Forum Discussion
wolfe10 wrote:
Fan on high will NOT cause the engine to run too cold. The thermostat determines how much coolant goes to the radiator. Very similar to operating in near-freezing temperatures-- the thermostat doesn't put as much coolant to the radiator.
Yes, fan speed on high will lower temperature of coolant in the radiator AND take extra HP.
Thanks for that clarification/reminder. I will not fret the failed fan controller. Can't find anyone who has one anyway and I am told the Sauer-Danfoss controllers many coach manufacturers use fail often.
