I also have a 2000 Saturn SL2 with the Twin Cam 16 valve engine. It's had a problem with overheating. The cooling fan doesn't come unless the air condition is on. We checked the cooling temp sensor, the car only has one, and the temp gauge works fine so I assume the sensor is fine as well. The coolant also disappears somewhere. We've changed the water pump, thermostat, and checked all the hoses. Water does seem to be leaking from the rear of the engine. Can you please help?
Monday, June 21st, 2010 AT 4:01 PM