2000 Pontiac Grand Am radiator cooling fans

Tiny
BRUCE101654
  • MEMBER
  • 2000 PONTIAC GRAND AM
Engine Cooling problem
2000 Pontiac Grand Am 6 cyl Two Wheel Drive Automatic

i cannot get either of the radiator cooling fans to come on. The fuses are good and the relays are good. If it the ecm where is it located. There is a module under the glovebox what module is it.
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Thursday, June 10th, 2010 AT 8:00 AM

12 Replies

Tiny
BLACKOP555
  • EXPERT
Your going to want to find the cooling temp switch. Unplug it and jump the two terminalls the fans should come on. If not the fan is bad or the vehcile isnt sending power and ground to the fan. Maybe bad wire if it does the switch is most likely bad
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Thursday, June 10th, 2010 AT 10:17 PM
Tiny
BRUCE101654
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I replaced the cooling temp switch the gauge works no power to either fan
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Friday, June 11th, 2010 AT 8:10 AM
Tiny
FAMILYLIFE
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Does your fans come on when u turn on your a c?
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+2
Friday, June 11th, 2010 AT 11:36 AM
Tiny
BLACKOP555
  • EXPERT
One sensor controls the temp guage. Other for cooling fan operation and fuel mixture adjustments
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Saturday, June 12th, 2010 AT 6:00 PM
Tiny
FAMILYLIFE
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Which sensor controls the fan. Please tell me the name so I can test it. Thanks
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Sunday, June 13th, 2010 AT 8:08 PM
Tiny
BLACKOP555
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http://www.2carpros.com/forum/automotive_pictures/66751_Graphic_4.jpg

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Sunday, June 13th, 2010 AT 9:02 PM
Tiny
BRUCE101654
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No fan when ac on but ac low on freon where is the temp sensor for fan located also the sensor for the ac cooling fan
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Tuesday, June 15th, 2010 AT 7:36 AM
Tiny
BRUCE101654
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I unplugged the temp sensor fan came on turned ac on both fans run as long as sensor unpluged any ideas
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Thursday, June 17th, 2010 AT 6:54 AM
Tiny
BLACKOP555
  • EXPERT
Sounds to me like the temp sensor may be bad?
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Thursday, June 17th, 2010 AT 12:31 PM
Tiny
FAMILYLIFE
  • MEMBER
I repalced it twice now so I know that is not it. Replaced air temp sensor also. Need another idea please.
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Thursday, June 17th, 2010 AT 3:52 PM
Tiny
BLACKOP555
  • EXPERT
What are the voltages at the sensor. How mcuh volts you reading at the ground side of the circuit? Do this by back probing each side and telling me the voltage readings
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Thursday, June 17th, 2010 AT 11:54 PM
Tiny
BRUCE101654
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8 volts
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Friday, June 18th, 2010 AT 7:23 AM

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