Coolant Flush, Do I replace the water control valve?

Desert Rodent said:

There is a reason they put a water temperature gauge and/or light on vehicles, so the driver can pull over and shut off the vehicle before damage is done.

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Many cars I had, including current 2017 and 2018 Versas, do not have a water temp gauge, only the warning light. I wish they had the gauge. When the light turns on, it could be too late.