Have you pressure checked the system for leaks?
Are you getting antifreeze in the oil or oil in antifreeze?
After replacing the parts was the system properly refilled to prevent air bubbles, particularly in the heater core?
Is antifreeze flowing sufficiently while the engine is running to indicate no system blockages?
Are you getting antifreeze in the oil or oil in antifreeze?
After replacing the parts was the system properly refilled to prevent air bubbles, particularly in the heater core?
Is antifreeze flowing sufficiently while the engine is running to indicate no system blockages?