COOLING FAN

2003 Pontiac Grand Am

Tiny

lupimanic

September, 29, 2009 AT 7:07 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

FOUND 13549 RELATED QUESTIONS

9 Answers

Tiny

mmprince4000

October, 2, 2009 AT 7:05 AM

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

Tiny

lupimanic

October, 2, 2009 AT 7:30 AM

I change the fan sensor or temp sensor

Tiny

mmprince4000

October, 3, 2009 AT 9:09 AM

Change the fan switch, which activates the cooling fans.

Tiny

lupimanic

October, 3, 2009 AT 9:37 AM

Were it s locate the switch?

Tiny

mmprince4000

October, 4, 2009 AT 8:31 AM


http://www.2carpros.com/forum/automotive_pictures/108325_cooling_fan_circuit_1.jpg



See if you can enlarge this.

Tiny

lupimanic

October, 4, 2009 AT 2:18 PM

I went to all I check relay sensor wires fuses thermostat can be the pcm.?

Tiny

mmprince4000

October, 5, 2009 AT 9:25 AM

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.

Tiny

lupimanic

October, 5, 2009 AT 12:18 PM

Yes no swich for the fan that is very bad.
Thanks

Tiny

mmprince4000

October, 6, 2009 AT 11:00 AM

Well maybe not so bad, change the coolant temp sender.

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