How do I fix the fans in my car was said if u put a/c on at least one fan will cum on nothing and I had an overheating prob but when I turned heater on it cooled car down now today it dosent now no fans help please
First of all you would need to test if the cooling fan motor is good.
Next, unplug the cooling fan switch near thermostat housing. Turn ignition ON and fan should come on. Ground the wire and fan goes off means the fan switch is bad.
If unplugging the fan switch does not work, check the cooling fan fuses and relay.