What did you end up doing with your water pump? If you put the old one back in, then you already know what you have to do next...
If you put a new one in, then I would try to make sure all the air is burped out of the system, and also take a closer look at the pump drive belt and tensioner to make sure they aren't slipping or seizing.
Also, did you put the thermostat back in correctly?
If you put a new one in, then I would try to make sure all the air is burped out of the system, and also take a closer look at the pump drive belt and tensioner to make sure they aren't slipping or seizing.
Also, did you put the thermostat back in correctly?