Low Coolant Message

[depalma]

I had the same issues with a false low coolant light.
I researched this question and found in other forums that when the low coolant sensor gets contaminated , it can no longer conduct and thus give the low coolant indication.
I replaced my original sensor but found that shortly thereafter the new sensor got contaminated and it too gives a false reading.
This all started when the intake manifold gasket went bad (replaced twice) and this likely caused contamination in the cooling system, that new antifreeze did not cure.
i also found a procedure suggesting to remove the sensor and clean it with a brush. it will then work again, for awhile, until it gets contaminated again.

[depalma]

Thanks for the suggestion on the air bubbles, i wil give it a try