So i got i problem thats more of an annoyance. my a/c works fine but i was driving and then all the sudden the fan started making a constant noise/vibration. there was no bang or anything leading up to it. a/c blows ice cold still. i tried turning the fan on/off as well as the compressor. i just turn up the radio to tune it out but i can feel the vibration in the steering wheel a little too if the fan is kicked up to high speed. ive never heard of anything like this. any help would be awesome