Try to get a metal impeller pump, I used a Delco. The original pump is black plastic, you may find the impeller is loose on the shaft and cracked into 2-3 pieces. The "white plastic" impellers may be ok as well. Good luck with your repair. You might want to replace the temperature gauge sensor, which is right behind the waterpump housing. Maybe the wire is just pulled off if you are lucky. Then you can monitor the engine temperature. (On my Mystique the sensor had shorted, which pegs the needle to the hot side.)
