Need to know how to install a water pum...

Hi
1 drain the coolant
2 there will be a pulley with 4 10mm bolts loosen them
3 remove the belt
4 now remove the 4 10mm bolts and remove the pulley
5 that's the water pump there are 5 bolts to remove (8mm)
6 after removing the bolts tap the pulley flange to remove the pump
7 clean the old gasket off the front cover
8 install the new pump and gasket and reassemble

Go to youtube and search for gm 3.1 water pump. Great video that does the whole job for you!