I agree with dd mareo. My car had the same symptoms. I changed the water pump, thermo, flushed the system a thousand times to no avail. The radiator actually flow tested ok, but was so old that it just didn't have the heat exchange rate that it should. You may remember me talking about it. see "radiator upgrade" in main forum. The b210 radiator is awesome, fits perfectly with no mods other than strapping the top down. You can even use the factory shroud off of the 210. Good luck and hope this helps.