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1999 Chevy Cavalier Sensor that turns on fan belt

Tiny
FEENSTERJ
  • MEMBER
  • 1999 CHEVROLET CAVALIER
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 164,000 MILES
I am trying to find out the what sensor operates the fanbelt for a 1999 Chevy Cavalier.
Friday, April 9th, 2010 AT 7:53 AM

3 Replies

Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
You want to know what sensor helps to turn the electric radiator fan on. There are a couple. Of course the radiator fan relay must be working in order for this to happen anyway, so you must verify that the fan works by hardwiring the fan to the battery, if it comes on, obviously its good. But also the engine coolant temp sensor, will tell the computer that its too hot, then in turn the computer will send a ground to the fan to make it come on
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Friday, April 9th, 2010 AT 10:12 AM
Tiny
FEENSTERJ
  • MEMBER
  • 2 POSTS
Thank you. Yes it has been hooked to the batter and tested. It does come on and therefore works. So I was told that the sensor may be bad. So this being the case, you said its called the engine coolant temp sensor.
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Friday, April 9th, 2010 AT 10:34 AM
Tiny
LEGITIMATE007
  • MECHANIC
  • 5,121 POSTS
Yes, engine coolant temperature sensor
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Friday, April 9th, 2010 AT 5:51 PM

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