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Low coolant light

Cdigiorno

By Cdigiorno
in Ask A GM Technician

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Cdigiorno New Member

Cdigiorno

Posted
Posted

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. 

Mr. Z71 Enthusiast

Mr. Z71

Posted
Posted

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.

Jsdirt Senior Enthusiast

Jsdirt

Posted
Posted

Leave it to GM to make it part of the tank. Figures! :shakehead:

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