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Engine cooling system Flush method


Jaym

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Hi Guys i noticed its time for a flush.. getting a fair bit of browny rusty deposits floating around the top of the radiator and a few other main hoses.

Is the best way to insert a T-Valve on the inlet heater hose and flush with a hose until clear?? Or Just drain existing radiator fluid top up with radiator flush and run car and then drain and re fill with fresh coolant.

Cheers

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Yes, being able to plug a hose into it and drain it while it is running is a good way, but hardly ever done that way.

For what it is worth, you could just put the hose into the top of the radiator and do it that way.

But I'm scared of hot water so I just warm it up to temp, drain it, let it cool, then refill. then let it idle up to normal temp and check the usual like thermostat opens properly and crack the bleed on the back of the block.

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