How do I replace the water pump on a 1994 plymouth voyager? v6

Allow the vehicle to completely cool. Overnight is best.
REMOVAL

1. Drain Cooling System.
2. Remove Accessory Drive Belt.
3. Remove right front lower fender shield.
4. Remove pump pulley bolts and remove pulley.
5. Remove pump mounting screws Remove pump.
6. Remove and discard O-ring seal.
7. Clean O-ring groove and O-ring surfaces on pump and chain case cover. Take care not to scratch or gouge sealing surface.

Attachment 5845

Installation is just the reverse of that.
Torque pump fasteners to12 Nm (105 in.lbs.) This is not a lot of torque.
Replacing the thermostat and gasket at the same time is recommended.
Refill the system and inspect for leaks.
Acquire cold beverage.