Question about 1999 Cadillac DeVille

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I have a99 sts and it runs hot the fans wiil come on when the ac is on do they suppose to come on when the car turns on

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Usually when you start the car the fans will not turn on. They are controlled by a sensor, that when the coolant reaches a certain temp. they will turn on. You need to check the cooling fan relays and fuses. If they are all good, then you might need to replace the heat sensor.

Posted on Apr 09, 2011


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