Question about 1997 Buick Century

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I have tested the cooling fans and they work but when temp is half the fans wont come on where are the fan relays

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The cooling fan relays are in the under hood fuse box . they should be marked on the inside cover of the fuse box lid . The cooling fans should operate around 215 to 230 degree's (when the car is stop at idle ) the fans should also operate when you turn on the a/c . the cooling fans relays recive a signal from the PCM (power train control module) to be commanded on The PCM use information it receives from the coolant temp sensor

Posted on Mar 16, 2011

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I have a 2002 Lincoln town car and I just put a brand new fan in and its not coming on my car runs hot when I have it in park with the ac on


Did you check the fan relays ? There are two, cooling low relay an cooling fan high relay . The relays are turned on by the vehicles PCM - engine computer , when an input from the coolant temp. sensor indicates a certain temperature ! When you turn on your A/C the cooling fan should turn on an stay on .
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Cooling fan is controlled by a relay and a temp sensor. You need to check that each piece is working.
Run power to the fan. fan run? fan ok.
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