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

Tiny
JOE960
  • MEMBER
  • 1990 FORD TAURUS
Electrical problem
1990 Ford Taurus 147 miles

why do i have to turn my ac on to make the fan work on my car



http://www.2carpros.com/forum/automotive_pictures/224890_01151201020501040620080802d2275aa3946f19a313009b321_1.jpg

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Thursday, August 7th, 2008 AT 9:29 PM

5 Replies

Tiny
BLACKOP555
  • MECHANIC
  • 10,371 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.
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Thursday, August 7th, 2008 AT 10:54 PM
Tiny
JOE960
  • MEMBER
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How much will that cost to fix that sensor/switch?
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Friday, August 8th, 2008 AT 12:52 AM
Tiny
BLACKOP555
  • MECHANIC
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Dunno what they will charge for the switch.

The labor will take no more then 30 mins.
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Friday, August 8th, 2008 AT 9:05 AM
Tiny
JOE960
  • MEMBER
  • 2 POSTS
Where can you buy those sensors, and tell me is this what they look like,


http://www.2carpros.com/forum/automotive_pictures/224890_Ford20Motor20Craft20DY681_3.jpg




http://www.2carpros.com/forum/automotive_pictures/224890_Ford20Motor20Craft20DY681_4.jpg

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Friday, August 8th, 2008 AT 12:31 PM
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 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.
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Friday, August 8th, 2008 AT 8:13 PM

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