I know these are rather novice questions but here I go--

All the coolant that flows out during a water pump replacement effectively drains coolant from the engine block, correct? So when mechanics say the coolant is replaced as well during a timing belt + water pump job, does this mean they also drain the radiator so you now have nearly 100% new coolant in the system? I've always wondered about this grin.


Edited by mclasser (01/13/14 10:09 PM)
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2013 Honda Pilot--15K miles
2002 Honda Accord--190K miles
2002 Infiniti I35--100K miles