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2001 Chevy Impala Low cool;ant sensor

Tiny
BILLY TAY
  • MEMBER
  • 2001 CHEVROLET IMPALA
Engine Cooling problem
2001 Chevy Impala 6 cyl 225000 miles

I had the radiator replaced on my 2001 Impala and the low coolant light came on about a day later, I tried a few things before I changed the sensor. This worked for about a half a day and it came on again.
I have checked for air in the system a number of times but the coolant is never below the sensor.
Any ideas?
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Tuesday, June 3rd, 2008 AT 10:36 AM

5 Replies

Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
Is the sensor pointing in the correct direction
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Thursday, January 31st, 2019 AT 6:45 PM
Tiny
BILLY TAY
  • MEMBER
  • 3 POSTS
Good question
I put it on the way I took the old one off
But I just had the radiator replaced so who knows if they put it on right
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Thursday, January 31st, 2019 AT 6:45 PM
Tiny
RHALL77
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  • 3,361 POSTS
The connector should be pointing down
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Thursday, January 31st, 2019 AT 6:45 PM
Tiny
BILLY TAY
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  • 3 POSTS
Yes it is pointing down
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Thursday, January 31st, 2019 AT 6:45 PM
Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
You have to make sure all the air is out of the system. If it is not when the engine sucks coolant out of the radiator it could drop below the sensor. When its shut off it maybe above it but not when you are driving down the road.
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Thursday, January 31st, 2019 AT 6:45 PM

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