Crap2.2L

okay straight to it , 02 grand am ecotec, replaced waterpump used the tool but still got the whine afterwards. i knoe i must reset the balance shaft tensioner . But how is that done ??? i know where its located and how it looks, but ive never worked on that and have no idea how to reset it so the whine goes away. all i seen is people explaining it but it hardly makes any sense to me because ive never worked on anything timing related for obvious reasons. its an easy fix i just don’t understand how to reset it . and help is great

ly appreciated