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Cooling fans not coming on

Tiny
HL77705
  • MEMBER
  • 1997 CADILLAC DEVILLE
  • 146,876 MILES
I have the car listed above with a 4.6 Northstar. I have no coolant leaks but temperature gets a little high my cooling fans aren't coming on and also when I take off radiator cap the antifreeze is just sitting. I don't see any flow I am assuming it's thermostat just not sure. I can't seem to find any how to videos on this model. Also I have been having this car 12 years but it has been sitting up for 6.
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Saturday, April 3rd, 2021 AT 3:11 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good evening,

I attached the procedure for you for replacing the thermostat.

https://www.2carpros.com/articles/replace-thermostat

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

I also attached a wiring diagram for the fans for you if they still do not work.

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Roy
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Saturday, April 3rd, 2021 AT 5:21 PM

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