Actually, I'm not sure what you are refering to when you say agitator. Do you mean the fan blade? Also, the noise sounds like a bad bearing in the fan motor. However, it should shut when you turn the key is off, unless the ignition switch is going bad and allowing power to continue to the motor. If the fan continues to run after you leave the car, yes it will kill the battery. I would try replacing the fan relay and the motor to see if that helps.
Sunday, July 19th, 2009 AT 11:47 PM