Replace Temp Sensor.

Tiny
AIRBORN1357
  • MEMBER
  • CHEVROLET
2001 CHEVY IMPALA 3.8 V6 110,000 MILES.
Yesterday morning was a bit chilly maybe 29 degrees. I went out to go start the car to warm it up. Once I started it. It made a really high pitched almost whinning noise. Consistently. I then shut the car off. Took the keys out. The noise was still going.I opened the hood. The fans were still running. Once the car warms up. The noise tends to go away. But after I shut it off. The fans still run. For a while afterwards. So by the fans running all the time. No matter if I drive for a long period of time. My tem gage doesnt move at all. It stays as it was when I first start it up.
After a day the check engine light came on.I got the code read and it's P0128 coolant temp. Where is this sensor located and how do I replace it
?
Monday, December 11th, 2006 AT 10:05 AM

4 Replies

Tiny
82-454
  • MEMBER
  • 23 POSTS
Go to AutoZone. Com they have alot of helpful info on their site. Finding the sensor is the hard part changing it is easy. Pull the wiring plug off remove it witha socket. Have the new one ready to go back in with some thead sealant on it and screw the new on in.
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Monday, December 11th, 2006 AT 8:28 PM
Tiny
AIRBORN1357
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Thanks mans appriciate it
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Tuesday, December 12th, 2006 AT 5:36 AM
Tiny
PORKCHOPPAT
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  • 7 POSTS
I changed mine in a 2001 blazer it was right under the therastat housing, unplug the wirh and you will need a deep socket or you will brake the new temp sensor trust me I learned the hard way. Have fun very easy
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Tuesday, December 12th, 2006 AT 7:01 PM
Tiny
JASFR
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Did you ever fix the problem? The same thing is happening to my Impala.
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Tuesday, January 30th, 2007 AT 8:24 PM

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