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stevekaufman's avatar
stevekaufman
Explorer
Aug 21, 2013

Engine overheating on Cummins ISC 350 Fan not turning

I have a 2003 Allegro Bus with a Cummins ISC350 engine that is overheating. The fan is not turning. It is a side mount radiator. Was wondering if it is the hydraulic pump or the solenoid and how I w...
Class A
wolfe10's avatar
wolfe10
Explorer
Aug 21, 2013
Verify fluid level.

On most systems (confirm with your chassis maker) disconnecting the wires from the controller defaults the fan to high.

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