FAN WON'T TURN OFF WHETHER I HAVE THE AIR CONDITIONER ON OR OFF. HOW CAN I TURN IT OFF?

Asked by cilgagnon25 Aug 25, 2012 at 08:05 PM about the 2009 Mercury Grand Marquis LS

Question type: Maintenance & Repair

THE FAN IS ON HIGH AND WON'T TURN OFF.

2 Answers
450

hummerh1alphame answered 11 years ago

look on the fan motor(s) for the wires. trace them as far backwards as you can looking for imperfection(s). if theres a cut in wire receiving power from another wire, causing it to run, at least clean the wire and wrap it with black electrical tape. then trace them/it to the temp switch on the engine. look for it to be on the thermostat housing or intake, and/or on the radiator if theyve started doing that

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110

Stanley answered 6 years ago

Could be the resistor. That's what made mine go weird in my contour/fusion

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