That almost sounds like the water pump is rotating backwards. Here is the belt routing verify it is proper. Do you have the part number for the water pump that was put on? I have seen aftermarket pumps that have had the wrong impellers before, Al
Click here for diagram
Could an inefficient water pump possibly cause the problems I am having? I have replaced the water pump but I guess its possible that it was not remanufactured correctly and not be pumping effectively enough. Here is the thinking...If coolant is not being circulated good enough, the engine would get too hot. When the coolant got hot enough it would naturally circulate like a closed radiator system in a house. Then the water that had been in the radiator longer than normal is cooler than normal and it is forced into the engine cooling it dramatically. I'm grasping at straws but I think I am going to replace the water pump again and see what happens.