When should the water pump be replaced?

when the timing belt has to be changed or when it leaks. Roy

An Acura MDX has the timing belt and water pump being changed as preventative maintenance between 60,000 and 105,000. Generally if its been change by a shop, we generally put a sticker on the core support somewhere, so that people that follow up will know the last time it was maintenanced. Other that that, only if the water pump begins leaking, then you change the belt while your there.