the water pump on the Chevy astros are right behind the fan. you need to remove the fan shroud, remove the belt, then the fan. The pulley comes right off and the part behind the pulley is the water pump. It is held on by four bolts two on each side. You will not be able to see them all, but they are reachable with a deep well socket, I believe a 9/16. I could be wrong about the size though. hope that helps :)
Look under the hood for the radiator fan. The fan is mounted to the pulley at the front of the water pump.
water pump
Behind the water pump
The fuel pump is in the fuel tank.
Drain the water from your 1996 Chevy Astro Van cooling system. Remove the water pump belt. Remove the water return hose. Remove the water pump retaining bolts. Reverse the process to install your new water pump.
Where my fuel pump located on my 1992 Buick riviera
My daughter has a 2002 Astro Van and hers is in the fuel tank.
the water pump is in the middle of the timing cover the crank pulley and timing cover has to come off
In the fuel tank
In the gas tank
how do you install a water pump on a 1992 toyota camry
the water pump is located on the left side of the engine mid way down. remove the belt and then the pully. the pump is located behind of the pully. there is not much room and it is not easy to replace,