1990 Ford Taurus. ac needs to be on for radiator to work

1990 FORD TAURUS
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JOE960
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  • 2 POSTS
Electrical problem
1990 Ford Taurus 147 miles
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why do i have to turn my ac on to make the fan work on my car


[img:2584012dee]http://www.2carpros.com/forum/automotive_pictures/224890_01151201020501040620080802d2275aa3946f19a313009b321_1.jpg[/img:2584012dee]
Aug 7, 2008 at 2:29 PM
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BLACKOP555
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  • 10,386 POSTS
that would indicate a faulty coolant temperature switch, not sending unit!.

ground the switch out on the Postive battery terminal with key on, does fans turn on? if not could be a relay or bad wiring.
Aug 7, 2008 at 3:54 PM
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JOE960
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how much will that cost to fix that sensor/switch?
Aug 7, 2008 at 5:52 PM
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BLACKOP555
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dunno what they will charge for the switch.

the labor will take no more then 30 mins,,,
Aug 8, 2008 at 2:05 AM
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JOE960
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where can you buy those sensors, and tell me is this what they look like,


https://images.2carpros.com/forum/automotive_pictures/224890_Ford20Motor20Craft20DY681_3.jpg


https://images.2carpros.com/forum/automotive_pictures/224890_Ford20Motor20Craft20DY681_4.jpg

Aug 8, 2008 at 5:31 AM
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BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
you can get a switch for 14 bucks on partstrain.com

just search for your year, make model
then coolant temp switch NOT sensor.
Aug 8, 2008 at 1:13 PM
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