Replacing Low Coolant Level Sensor

If your low coolant indicator on your dash turns on, you immediately panic and pull to the side of the road. After opening the hood and checking the coolant reservoir you are confused because it's full. Being super concerned you drive home and allow the engine to cool over night. The next morning you take the radiator cap off (you weren't going to do that with a hot engine!) and there is coolant right up to the cap. You start the car and maybe the indicator light is off, so you drive away, but later the light comes back on.

Well if this sounds familiar then the Low Coolant Sensor is causing your problem. GM part 1009-6163 for my 1995.

1.		Remove the battery to help you see the sensor and have room to work on it.
2.		You will need to drain the coolant level to below the sensor to prevent a mess while changing the sensor. In the enlargement of this picture it is easier to see the red arrow that shows the location of the wiring connector on the sensor. Disconnect that conection (it's disconnected in the picture). The green arrow shows the metal clip that holds the sensor in the radiator. Disconnect that clip and pull the sensor out.
3.		Put the new sensor in, attach the wiring, fill and bleed your coolant system. Thanks to Coyote for this much better photo than I had.

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