Engine Cooling System problems of the 1999 Saturn SL

Coolant mixing with oil.

I have been adding coolant constantly. I took car for repair and was told the water pump needed replacement. I replaced the water pump and still having the problem with overheating. Saturn issued a bulletin 01-t-07 that talks about the sensor problem. They will only reimburse the customer if it's still under warranty. I am upset because I continue to pay for items that I probably don't need because the problem could not be found.

Vehicle has been losing cooling fluid. Consumer is adding 2 quarts a week for last few weeks. Inspected hoses, no leaks, also no fluid under vehicle when parked.