Tell us you flushed the cooling system after you found that your water pump broke.
Either way you might have chunks of the impellar stuck in the system.
The only way to find out is to remove the thermostat and look/feel around.
1996 2.5LT V6 Contour ATX
My Tour+help/info pics
E0 rims, Gutted Pre-Cats,CTA Custom Exhaust & Intake, Diablo Chip.