4.7 Hydraulic cooling fan manual switch - North American Grand Cherokee Association
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Old 05-08-2019, 11:48 AM   #1
Moose Magnet
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Default 4.7 Hydraulic cooling fan manual switch

I want a switch to force the hydraulic cooling fan to spin. Has anyone done this?
I believe the fan comes on too late, when the temp it too hot. It should come on sooner.
New: water pump, radiator, hoses, thermostat, coolant and flush.
The fan has come on only once when the water pump gasket failed the engine overheated. Seems it came on late. Should come on BEFORE it overheats.
Anyone devise a manual switch for the hydraulic fan?
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