(Assuming your talking about the blower motor and fan blade)Mine was doing the same thing. Got tired of the noise and purchased another fan motor only to find leaves and all kinds of other trash stuck in the wheel. Cleaned it up and it was quiet again. Just for ****s and giggles I plugged the other one in and noticed less air flow than the factory one in. Try to keep the factory fan blade if at all possible.May replace the Fan Motor and Fan Blade. The Motor is buzzing at high speed.