Question about 1992 Buick Century

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My fan will not run when engine is hot I have

My fan will not run when engine is hot I have replaced fan motor Temperature sender and relay HELP

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Have you checked the fan itself?
You can just disconnect the wires connected to the temperature sensor, then the fan should turn on if it still working, since it is designed that way.

Posted on Sep 28, 2009

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there is a fan control relay under the dashboard with the other relays check that then check the temperature contreol module theat is located in the engine compartment
--------------- there is a 2 speed sensor/sender on the lower part of the radiator, facing the driver. It's on the tube at the end of the radiator. The fan motor has three leads, an orange, which should be hot, and is monitored by a 40 amp fuse located either on top of the battery, or with the fuse modules/relays under the dash. (according to the book, I still can't find mine, it may be NEXT to the battery. The negative must be thru the chassis, so it would be a good idea if, at temperature, with two hots going to the motor, look for a shorted ground. If one of the hots isn't, then the sensor or 40 amp is bad. After those are ruled out, it's the motor.

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