I have a 98 Saturn SL2 with 140k miles. The engine cooling fan does not come on in normal driving. It does work when the air conditioner is running. I have changed the radiator cap, replaced the sender and replaced the wiring clip on the sender. I checked the relay and it is operating correctly. The gauge in the car reads correctly. The car runs in a normal range when driven on the highway but will begin to heat up in traffic. Radiator fluid levels are ok.
I was told I might change the thermostat but I don't see how that would effect the fan operation as the engine comes up to normal tempature and hold there during normal driving.
Any ideas of what else to check.
Tuesday, February 14th, 2006 AT 3:20 PM