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Radiator cooling fans not working

Tiny
GABE1
  • MEMBER
  • 1999 PONTIAC GRAND AM
  • 170,000 MILES
Cooling fan operation 1999 Pontiac Grand Am V6 3.4 L engine. I would like to know how are the radiator cooling fans supposed to work. What temp are the supposed to come on and what speed (low, high) etc. Any Info is greatly appreciated. Thanks.
Wednesday, November 30th, 2011 AT 3:00 AM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
When the engine reaches a certain temp (based on the temp sensor), the sensor send a signal to the PCM which sends power to the fan relay. THe relay then powers the motor.
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Wednesday, November 30th, 2011 AT 3:04 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Outstanding Joe-you have a Happy Holiday's couldn't explain it any better-Hope you had a wonderful Gobble Gobble Day-Mine when fine, but 10kids are MIA's-See you later at Yahoo
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Wednesday, November 30th, 2011 AT 3:53 AM

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