Quote:
Originally Posted by JOHNDQ
If you coolant is in that condition to do it properly you will need to remove the thermostat. When you drain the coolant by removing the bottom hose it doesn't drain the coolant out of the engine block or heater so when u refill and run the car up it will all just mix again
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That's what I mean, I want to remove the return hose and just run the car till the water is clear or mostly clear to make sure all the rubbish is out before I put in new coolant. If the car is running from cold the thermostat should open as the clean water is running through so it should clean some of it out.
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