i just parked my car and it sounds likes something is boiling? its coming from the radiator cap. i change my radiator fluid and filled it up, (not to long ago) i dont have any leaks anywhere. my light does come on but i think my sensor went out??? i think? why would my radiator fluid be boiling? bad radiator? water pump?

 

You may be overheating. Make sure your fan is coming on when the car warms up. If the fan works, Try a new radiator cap. If the cap is good check the thermostat. If that checks out I'd have the cooling system pressure tested to check for a head gasket leak.

 

Ill is right - the stock radiator caps fail all the time. Replace that and it will likey solve your problem.