I Have a 2002 Chevy Malibu LS 3.1 I have had a radiator flush a new water pump and thermostat I also changed all my relay fuses. My fans will come on with the AC running. My fans sometimes don't work at all so that causes my car to overheat and releases antifreeze coolant out of my overflow. I have replaced so many things like: coolant sensor, relay fuses, radiator flush,water pump, thermostat, full body tune-up and front and back brakes replaced. Still to this day I don't know whats wrong with my car I have just had for a little over 3 months.