The ecm will not command the solenoid off until it reaches 212 degrees 220 degrees f or if oil temp and intake temps run high as well.
Freightliner cascadia fan clutch solenoid.
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The engine should not reach anything hotter than 225 that is the max engine temp that detroit wants it to run.
2013 freightliner cascadia cummins engine.
Fan clutch problems we do not want to know or except the fact and face the damages because it can get to be complicated and very expansive but most importan.
Very simple repair mine was 128 00 yours may be more or less.
I show how to replace a bad fan solenoid on my freightliner century 2007.
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2010 freightliner cascadia fan clutch stays on replaced solenoid and still stays on i put power and ground on the connector to test fan clutch and it engages correctly there is voltage going to the so read more.
Bad fan solenoid valve radiator fan stays on.