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There is a sensor in the reservior that will sometimes act up. If the coolant is full try tapping on the sensor lightly and see if that changes the warning light. This is the likely problem source.

AnswerNot sure but yours should be the same. My wifes 95 lumina was doing the same thing. On the thermostat housing, there should be a small screw that you need to back out a bit until antifreeze comes out. I have been told that air gets trapped in that specific spot and it causes the low coolant light to come on.

The sensor is located above the thermostat .. right where the upper radiator hose connects to the intake manifold .. theres also a bleeder screw on the coolant rail that's located right by the belt next to the front valve cover run the car for a while then shut it off then open both of those bleeder screw to alow the air pockets to get out .. if your loosing coolant and having alot of air pockets its possible your head gaskets are going bad...

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โˆ™ 2011-09-13 12:32:21
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Q: On Chevy lumina 96 what to replace coolant temp switch or sensor if low coolant light is flashing?
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