Hello, I have a Honda Accord 2006 EX, 4 Cylinders. I bought it recently , and I noticed quite late that the previous owner used water instead of the recommended coolant in the radiator.

I want to do the right thing and use the recommended coolant. But I don’t know how to drain all the water completely from the cooling system. I know how to drain the radiator (by unscrewing the white rubber at the bottom of the radiator), but I don’t know how to drain all the water from the tube lines and the entire system.

I am getting an error :

P0128

Raw code: 0128

ECU: 09

Status: Confirmed

Coolant thermostat - coolant temperature below thermostat regulating temperature

From my research, I have to replace the coolant thermostat , while replacing it, I want to take advantage of the opportunity to use the right coolant liquid.

I would appreciate any help, or video tutorials.

Thanks .

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  • alwausBEnglish
    1·
    10 months ago

    Thays a dual stage thermostat, 172f and 194f for full open.

    If you are running water only then the code issue isnt thermostat sincejust runningthe motor will get yiu to operating temp, its sensor.

      • alwausBEnglish
        1·
        10 months ago

        Thats low coolant, air pocket, engine coolant sensor or thermostat stuck partially open or air intake temp sensor.

        If it was full open you woud throw a p0125 code.

        I dont know your location but it can also he caused by low outside temperature, ie. winter.

        Fill and purge the system which will take care or low coolant, coolent blend and air pockets, if the code returns then go for sensors.