[Joelb251]

The ETC or CTS (coolant temp sensor) do tend to crack over time if they are a nylon design, the brass one will help if the reading is off on the gage, before replacing it, might as well check the connector for it, if the connections are green, it is leaking and might as well replace the 2 wire connector too since corrosion will change the gages accuracy too. To me it sounds like it running hot, as if the thermostat is sticking.