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)
2013 Pilot--15K miles--QSUD 0W20 & Honda A02
2002 Accord--190K miles--VML 5W20 & Honda A01
2002 I35--95K miles--Castrol Edge 5W30 & Nissan 65F0E