2003 Pontiac Grand Am cooling fan

Tiny
LUPIMANIC
  • 2003 PONTIAC GRAND AM

Engine Cooling problem
2003 Pontiac Grand Am 6 cyl Front Wheel Drive Automatic 86000 miles

i have a 2003 pontiac grand am and the fan do not work but wend I put the a/c works how a can see if the problem are a electrical like a sensor or relay thanks

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Tuesday, September 29th, 2009 AT 7:07 AM

9 Replies

Tiny
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It is usually a fan switch that goes bad, the AC operates off a different circuit.

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Friday, October 2nd, 2009 AT 7:05 AM
Tiny
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I change the fan sensor or temp sensor

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Friday, October 2nd, 2009 AT 7:30 AM
Tiny
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Change the fan switch, which activates the cooling fans.

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+1
Saturday, October 3rd, 2009 AT 9:09 AM
Tiny
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Were it s locate the switch?

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Saturday, October 3rd, 2009 AT 9:37 AM
Tiny
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http://www.2carpros.com/forum/automotive_pictures/108325_cooling_fan_circuit_1.jpg



See if you can enlarge this.

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Sunday, October 4th, 2009 AT 8:31 AM
Tiny
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I went to all I check relay sensor wires fuses thermostat can be the pcm.?

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Sunday, October 4th, 2009 AT 2:18 PM
Tiny
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Most cars have a fan switch that triggers the cooling fan. I could not find one in the drawing, only relays.
It may be the PCM that trips the fan relays, based on coolant temp switch.

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Monday, October 5th, 2009 AT 9:25 AM
Tiny
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Yes no swich for the fan that is very bad.
Thanks

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Monday, October 5th, 2009 AT 12:18 PM
Tiny
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Well maybe not so bad, change the coolant temp sender.

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Tuesday, October 6th, 2009 AT 11:00 AM

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