Radiator flush - Toyota Yaris Forums

esse10 · 08-27-2013, 09:28 AM

Can anybody who is familiar with coolant flush and refill answer this question? How can you refill back the engine block back with coolant after you drain the complete block by opening the engine block drain cock??? When you put coolant back into the system the thermostat by the lower hose is closed and you fill up at the radiator cap? thermostats do not work normal with just heat it needs liquid heat temperature. has anybody done a complete drain and refill of their coolant system and what experience did you see? Seems like the block would be without coolant for a while until the thermostat opens but by then you could have done damage to your engine block. HMM?

Any past experience help , tips would be appreciated folks

thanks......

08-27-2013, 09:28 AM	#1
esse10 Drives: 2009 yaris 2 door Join Date: Feb 2013 Location: richmond TX. Posts: 235	Radiator flush Can anybody who is familiar with coolant flush and refill answer this question? How can you refill back the engine block back with coolant after you drain the complete block by opening the engine block drain cock??? When you put coolant back into the system the thermostat by the lower hose is closed and you fill up at the radiator cap? thermostats do not work normal with just heat it needs liquid heat temperature. has anybody done a complete drain and refill of their coolant system and what experience did you see? Seems like the block would be without coolant for a while until the thermostat opens but by then you could have done damage to your engine block. HMM? Any past experience help , tips would be appreciated folks thanks......