Cooling fans not working

Tiny
GORDON321
  • 2003 BUICK CENTURY

Six cylinder front wheel drive automatic 100,000 miles.

i just replaced the thermostat, radiator cap, coolant sensor, and checked all relays on my car. The cooling fans still are not coming on when the car reaches normal temperature. Then it starts to go past the normal temperature and the fans will not come on but when I unplug the coolant sensor or turn the air conditioner on both fans come on. Is there another sensor, switch or anything else that controls the fans? If so what and where is it located? Please respond ASAP. By the way nothing is stopped up.

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Saturday, September 25th, 2010 AT 5:03 PM

1 Reply

Tiny
BLUELIGHTNIN6
  • EXPERT
  • 16,929 POSTS

Three cooling fan relays and an engine coolant temperature sensor are easiest and cheapest on the circuit that could cause this issue. If they have been checked/replaced already than all that is left is the power-train control module (PCM).

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Sunday, September 26th, 2010 AT 8:19 PM

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