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hertfordnc's avatar
hertfordnc
Explorer
Jul 16, 2014

dodge 3500 cummins clutch fan engages on flat with no load

I've had this 2003 for just a month, still figuring things out. With the AC on, running empty on flat ground at 60mph the temp rises to about 210 and the clutch fan engages until the temp drops. ...
Tow Vehicles
wcjeep's avatar
wcjeep
Explorer
Jul 16, 2014
Are you sure the clutch fan is engaging? The mechanical clutch fan sounds like the truck is preparing for take off when it engages. If the temp is rising to 210 then drops without the jet engine roar it sounds like a slow to react thermostat.

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