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Low coolant light

Cdigiorno

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Cdigiorno New Member

Cdigiorno

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At random times my "low coolant" light comes on. The temp gage will show around half way 220 I think. 

Just had the oil changed and everything looked normal. I check the coolant and it shows normal. 

 

Any idea.  

 

2001 gmc sierra 1500. 

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Mr. Z71 Enthusiast

Mr. Z71

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If your coolant level is truly not low, then there is the possibility of an  intermittent coolant level sensor and/or intermittent electrical connection in the sensor connector and/or associated wiring. The sensor is located in the engine coolant recovery (aka radiator surge) tank and I believe is not replaceable. As an integral part of the tank, the whole tank has to be replaced. That's my thoughts.

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